0:00:02 > 0:00:03For many people, first sex
0:00:03 > 0:00:06and first love are defining experiences they'll never forget.
0:00:06 > 0:00:11- He'd choose you to take his virginity over anyone.- Really?!
0:00:11 > 0:00:14This is about what happens in our bodies
0:00:14 > 0:00:16and brains as we begin our sexual lives.
0:00:16 > 0:00:20Chris is trying to pull a girl. He's, like... He's a slut.
0:00:20 > 0:00:24We follow young people as they set about losing their virginity.
0:00:24 > 0:00:27"Are you sure you don't want to try before you buy?"
0:00:27 > 0:00:29- We'd tried it.- No. We didn't.
0:00:29 > 0:00:33And we track the effects of falling in love for the first time.
0:00:33 > 0:00:37I could tell it made her very happy. Ecstatic might be a better word.
0:00:37 > 0:00:40With access to cutting-edge science
0:00:40 > 0:00:44and computer graphics, we show the massive impact these crucial rites of passage have.
0:00:44 > 0:00:47Here's the area where we're hoping to see the activity.
0:00:47 > 0:00:50It can be a rollercoaster of emotions.
0:00:50 > 0:00:54Abortion is absolutely not a contraceptive choice.
0:00:54 > 0:00:57It's like the last resort of the last resorts.
0:00:57 > 0:01:01What happens at the start of our sex lives can have a major effect
0:01:01 > 0:01:03on the rest of our lives.
0:01:03 > 0:01:08I'm thinking of being a sneaky gay, or just be a gay person.
0:01:08 > 0:01:12Through the highs and lows, this is the inside story of how sex works.
0:01:12 > 0:01:16- Sex is good.- It was really fun!
0:01:27 > 0:01:30In Leeds, 19-year-old Callum
0:01:30 > 0:01:34and 17-year-old Corrina are in the first flushes of a new relationship.
0:01:34 > 0:01:37We've been together a month on Saturday.
0:01:37 > 0:01:40- So, just over a month now. - Yeah, early stages.
0:01:40 > 0:01:44Callum plucked up the courage to ask Corrina out one Saturday night
0:01:44 > 0:01:45at the local park.
0:01:45 > 0:01:51I had to have several aids for that courage, if you know what I mean.
0:01:51 > 0:01:56- PRODUCER:- What do you mean? To put it simply, I were drunk!
0:01:56 > 0:02:00He took my hand, led me over to the barrier there and said, "Corrina,
0:02:00 > 0:02:04"I might be a little bit drunk, but please, will you go out with me?"
0:02:04 > 0:02:07- I was like, "Yeah." - Did I say please?
0:02:07 > 0:02:10I don't know! I was, like, "Yeah. Go on, then."
0:02:10 > 0:02:12Callum and Corrina have not had sex yet,
0:02:12 > 0:02:17but Corrina lost her virginity in a previous relationship.
0:02:17 > 0:02:19Thinking back on my first time,
0:02:19 > 0:02:23I was happy at the time, and I don't regret it,
0:02:23 > 0:02:27because I never regret something that made me smile at one point.
0:02:27 > 0:02:31Callum, however, has not yet found the right person.
0:02:31 > 0:02:37I am still a virgin, which, a lot of my mates, they mock me.
0:02:37 > 0:02:39I've never really cared.
0:02:39 > 0:02:42If it's your first time having sex ever, I do think it's important
0:02:42 > 0:02:47for you have it with someone who means something to you.
0:02:47 > 0:02:49It should be quite special.
0:02:49 > 0:02:52Tonight, Corrina is cooking for Callum round at her place.
0:02:52 > 0:02:56This is the first night we'll have spent together. It should be all right.
0:02:56 > 0:03:01I think women tend to see this as a lot more romantic than men do.
0:03:01 > 0:03:03I'm not expecting owt.
0:03:03 > 0:03:07I don't expect to have sex with her tonight. Straightforward.
0:03:09 > 0:03:11It looks quite nice, actually.
0:03:11 > 0:03:13'I can't go a day without thinking about him.'
0:03:13 > 0:03:15I get excited when I go to meet him as well,
0:03:15 > 0:03:17I think, "What are we going to do today?
0:03:17 > 0:03:20'"What's our adventure for today?"'
0:03:20 > 0:03:22- Bon appetit! - 'Do you think about her a lot?'
0:03:22 > 0:03:25It might sound bad if I say I never think about her.
0:03:25 > 0:03:28I do think about her, but she's not always on my mind.
0:03:28 > 0:03:33'I know people who will be going out a week and they'll be deeply,
0:03:33 > 0:03:34'madly in love.'
0:03:34 > 0:03:39I've never believed that. I don't think love just happens like that.
0:03:39 > 0:03:43'At the moment, I'd say I'm deeply attracted to her. I like her a lot.
0:03:43 > 0:03:47- 'But not love.' This is surreal. - What is?
0:03:47 > 0:03:52I'm eating bacon, chicken and cheese with a glass of pink juice.
0:03:52 > 0:03:54'I actually do think I'm falling for him.'
0:03:56 > 0:03:58There's something about him.
0:03:58 > 0:04:01- Have you told him?- No, I'm too shy.
0:04:01 > 0:04:05Most young people start to develop an interest in sex
0:04:05 > 0:04:07and relationships after puberty,
0:04:07 > 0:04:11which happens at an average age of 11 for girls and 12 for boys.
0:04:12 > 0:04:17It is the most tumultuous time in any individual's life,
0:04:17 > 0:04:21so you have this explosion of hormones, and it's no surprise that
0:04:21 > 0:04:24it is associated with some quite radical behaviours.
0:04:24 > 0:04:28Puberty starts in a part of the brain called the hypothalamus.
0:04:28 > 0:04:31Messages are sent from here to the testicles in boys
0:04:31 > 0:04:34and the ovaries in girls, telling these glands to massively
0:04:34 > 0:04:36increase the production of sex hormones.
0:04:39 > 0:04:41In males, the main sex hormone is testosterone.
0:04:41 > 0:04:43In females, it's called oestrogen.
0:04:43 > 0:04:46These hormones are transported round the body in the blood stream, having
0:04:46 > 0:04:50been released at significantly greater levels than before puberty.
0:04:52 > 0:04:56At sites all over the body, the sex hormones dock at receptors,
0:04:56 > 0:04:59triggering major changes in our appearance and bodily function.
0:04:59 > 0:05:04In boys, genitals enlarge and sperm is produced for the first time.
0:05:04 > 0:05:08In girls, hips widen, breasts develop and periods start.
0:05:10 > 0:05:12As we become fertile,
0:05:12 > 0:05:15we start to explore sexual opportunities for the first time.
0:05:15 > 0:05:19Young men and women are learning about their sexuality
0:05:19 > 0:05:23and learning what it means to be sexually aroused.
0:05:24 > 0:05:26In South Wales,
0:05:26 > 0:05:29a group of lads in their early 20s have all lost their virginity,
0:05:29 > 0:05:32but they're preparing for a sexual rite of passage
0:05:32 > 0:05:36of a different kind - their first pulling holiday abroad.
0:05:36 > 0:05:40We're off to Kavos, and everyone goes to Kavos for one thing.
0:05:40 > 0:05:44- Sex, drink. Oh, that's two things.- I hope there will be plenty of women.
0:05:44 > 0:05:49The statistics that he's come up with - ten guys to every girl.
0:05:49 > 0:05:51Better bring some lube!
0:05:52 > 0:05:54Four of us going on holiday to Kavos.
0:05:54 > 0:05:59We have Dan, Richard, Tom and myself.
0:05:59 > 0:06:01Richard's the party animal of the group.
0:06:01 > 0:06:04'When he's drunk, he'll do anything, absolutely anything.'
0:06:04 > 0:06:08He'll use his two-thumb joke that he likes to use.
0:06:08 > 0:06:11What's got two thumbs, speaks French and has a 12-inch penis?
0:06:11 > 0:06:13Moi!
0:06:13 > 0:06:18- They'll obviously be disappointed. - Cos they can't speak French!
0:06:18 > 0:06:21Unfortunately I haven't been on a lads' holiday yet,
0:06:21 > 0:06:27so the anticipation is killing me, to be honest. I can't wait.
0:06:27 > 0:06:30Tour operators started offering cheap package holidays to
0:06:30 > 0:06:36young Brits back in the mid-1960s. Although, it wasn't until the '70s and '80s that these trips
0:06:36 > 0:06:39became established as a major sexual rite of passage.
0:06:40 > 0:06:44These days, thousands head out to resorts for a week of sun,
0:06:44 > 0:06:47sea and sex.
0:06:47 > 0:06:51- Plenty of condoms in there? - That's all that's in there.
0:06:51 > 0:06:54One of the aims is to chat the women up and, yeah,
0:06:54 > 0:06:57if we're lucky, go a little bit further.
0:06:57 > 0:06:59And we're live!
0:06:59 > 0:07:05It's been a while, so I want to get my leg over! I want a bit of fun.
0:07:05 > 0:07:09THEY LAUGH
0:07:11 > 0:07:15I'm 23 now. I can't be going on these holidays much longer.
0:07:15 > 0:07:19I have to get it out of my system. It will be epic. Memorable.
0:07:26 > 0:07:29In Gloucestershire, Andy and Odele have been going out
0:07:29 > 0:07:31for just under two and a half years,
0:07:31 > 0:07:35and are about to experience a major step forward in their sexual lives.
0:07:35 > 0:07:39Andy and I are getting married in two days' time,
0:07:39 > 0:07:45at the weekend, and we have decided to abstain from having sex
0:07:45 > 0:07:46before our marriage.
0:07:46 > 0:07:51Odele and Andy are Christian youth workers and met
0:07:51 > 0:07:54when they were colleagues at the same charity.
0:07:54 > 0:07:56'I'm a committed Christian.
0:07:56 > 0:07:59'That's important to me in terms of the girl I seek.'
0:08:00 > 0:08:04To have someone who I can marry who's got the same passions,
0:08:04 > 0:08:06goals and vision, that's really important to me.
0:08:06 > 0:08:09Most of the people Andy and Odele work with are not Christians,
0:08:09 > 0:08:12and the couple are open with them
0:08:12 > 0:08:16about their decision to wait until marriage before having sex.
0:08:16 > 0:08:19Were you scared the first time? Not scared... Were you not?
0:08:19 > 0:08:21No, I wasn't, mate.
0:08:21 > 0:08:23Were you not?
0:08:23 > 0:08:26Everybody's got their own opinion.
0:08:26 > 0:08:29It's a bit of a crazy thing, innit?
0:08:29 > 0:08:32If you've waited so long, I suppose it is.
0:08:32 > 0:08:35There was no sexual activity involved,
0:08:35 > 0:08:37the whole of your 27 years?
0:08:37 > 0:08:41- What would you call sexual activity? - Bar kissing.
0:08:42 > 0:08:46There was minimal sexual activity prior to us getting married.
0:08:46 > 0:08:50I feel sorry for Odele!
0:08:50 > 0:08:53It's so funny, the responses that you get. They say, "How old are you?"
0:08:53 > 0:08:55And you say, "I'm 29."
0:08:55 > 0:08:58"29?! And you're still a virgin? That's ridiculous!"
0:08:58 > 0:09:01When you get married, that's your lifetime partner,
0:09:01 > 0:09:05and you lose your virginity to them and it's like falling in love.
0:09:05 > 0:09:08But you don't have to wait. It's a choice that you can make.
0:09:08 > 0:09:14Why would you wait? Why don't you just lose it and feel the pleasure?
0:09:14 > 0:09:17For me, it was about having that experience with one person,
0:09:17 > 0:09:20so I wanted to make sure I waited till I was married.
0:09:20 > 0:09:22It's just natural to lose your virginity at 14 or 15.
0:09:22 > 0:09:25Pregnant by 16!
0:09:28 > 0:09:33The average age boys and girls lose their virginity in the UK is 16.
0:09:33 > 0:09:36Odele and Andy's pledge to save sex until marriage in their late 20s
0:09:36 > 0:09:39has even surprised some of their friends.
0:09:39 > 0:09:43One of my really close girlfriends said at the hen do,
0:09:43 > 0:09:47"Odele, are you sure you don't want to try before you buy?"
0:09:47 > 0:09:49- We did. We tried it.- No. We didn't.
0:09:49 > 0:09:52'I do think about sex quite a lot. Odele's an attractive girl.
0:09:52 > 0:09:54'Why wouldn't I?'
0:09:54 > 0:09:57For me, It does excite me, and I think that will strengthen
0:09:57 > 0:10:00our relationship and love for one another.
0:10:02 > 0:10:05With the ceremony just two days away,
0:10:05 > 0:10:08some nerves about the wedding night are creeping in.
0:10:08 > 0:10:13For me, I'm slightly nervous about the fact that Andy's going to see me
0:10:13 > 0:10:14with no clothes on and, as a female,
0:10:14 > 0:10:17I'm anxious about the fact that I've not got a perfect body,
0:10:17 > 0:10:19and lumps and bumps in places,
0:10:19 > 0:10:22and nobody's seen that yet, so all of that is new.
0:10:22 > 0:10:26Nerves before sex are natural, but can lead to physical problems
0:10:26 > 0:10:30during sex, and often this is down to poor blood flow.
0:10:30 > 0:10:33In men, when they are sexually stimulated,
0:10:33 > 0:10:36impulses are sent by the nervous system to the genitals.
0:10:36 > 0:10:40The nerves going through the penis then release chemicals that widen
0:10:40 > 0:10:44the blood vessels, which increases blood flow, producing an erection.
0:10:44 > 0:10:46Nervousness can impair those impulses,
0:10:46 > 0:10:49causing difficulty getting an erection.
0:10:49 > 0:10:51In women, there is a similar effect.
0:10:51 > 0:10:56Normally, sexual stimulation triggers blood flow to the vagina,
0:10:56 > 0:10:59which causes lubrication to make sex more comfortable.
0:10:59 > 0:11:02Anxiety can impair this blood flow,
0:11:02 > 0:11:05meaning the vagina is less lubricated,
0:11:05 > 0:11:08making it more difficult for women to get sexually aroused.
0:11:13 > 0:11:14Over in Kavos,
0:11:14 > 0:11:18the lads from South Wales have their own problems to deal with,
0:11:18 > 0:11:21as their dreams of a sex-filled holiday in the sun seem a little optimistic.
0:11:21 > 0:11:24It's definitely the end of the season.
0:11:24 > 0:11:28The end of the season's coming up this Friday.
0:11:28 > 0:11:29It's a weird set-up.
0:11:29 > 0:11:32I've never been to anything like this in my life.
0:11:32 > 0:11:33It's so different at night.
0:11:33 > 0:11:38As night falls, the lads are determined to find some girls
0:11:38 > 0:11:39and get the party started.
0:11:39 > 0:11:42'Nothing can dampen our spirits on a night out.
0:11:42 > 0:11:46'When there's plenty of girls, alcohol, bit of music,
0:11:46 > 0:11:48'nothing can get in our way.'
0:11:55 > 0:11:57The boys are three days into their holiday,
0:11:57 > 0:12:00and sex has not yet been a major feature.
0:12:00 > 0:12:02When it comes to kissing girls, however,
0:12:02 > 0:12:05one member of the group is way out in front.
0:12:05 > 0:12:07Tell me who's been the most successful so far.
0:12:10 > 0:12:14Well... The most successful is myself.
0:12:14 > 0:12:17'I've met a different girl every night.'
0:12:17 > 0:12:21I think that sounds quite bad, actually!
0:12:21 > 0:12:24He's doing great, as per usual!
0:12:24 > 0:12:29A bit of a reflection on last night, where he's pulled,
0:12:29 > 0:12:32and he's just gone back for seconds, I think.
0:12:32 > 0:12:34He loves a bit of secondary dessert, so to speak.
0:12:34 > 0:12:38He was trying to find her erogenous zones, and he couldn't find it,
0:12:38 > 0:12:39so I had to find it for him!
0:12:39 > 0:12:41I said, "It's her neck."
0:12:41 > 0:12:44He's kissing her neck all the time.
0:12:44 > 0:12:46That is her main erogenous zone.
0:12:46 > 0:12:51When we kiss, our bodies go into pleasure overdrive.
0:12:51 > 0:12:54The lips and tongue are packed with nerve endings
0:12:54 > 0:12:57that are incredibly sensitive to stimulation.
0:12:57 > 0:13:00This sparks the release of the feel-good chemical dopamine
0:13:00 > 0:13:04by nerve cells in the pleasure centres of the brain.
0:13:04 > 0:13:06When dopamine attaches itself to receptors
0:13:06 > 0:13:09on neighbouring nerve cells, it triggers feelings of euphoria
0:13:09 > 0:13:13and excitement all over the body.
0:13:13 > 0:13:16Some scientists believe kissing could be about more than
0:13:16 > 0:13:20a fleeting moment of pleasure,
0:13:20 > 0:13:23as more kissing leads to more release of other chemicals,
0:13:23 > 0:13:27such as the hormone oxytocin, which further stimulates bonding
0:13:27 > 0:13:28and desire between couples.
0:13:32 > 0:13:36As soon as I kiss her, the buzz heightens,
0:13:36 > 0:13:38you definitely feel a good adrenaline kick.
0:13:40 > 0:13:44There's something that just sparks in the back of your mind.
0:13:44 > 0:13:48There's always that buzz where you're thinking,
0:13:48 > 0:13:51"Yes, here we go! Job done!"
0:13:51 > 0:13:56It is a bit of a holiday romance, and I'm sort of getting to like that!
0:13:59 > 0:14:03He's a very open person, and I'm a flirty person anyway,
0:14:03 > 0:14:07so we ended up flirting and giving a lot of banter to each other.
0:14:07 > 0:14:10Then things happened from there.
0:14:10 > 0:14:13As you can see, the night's gone pretty well, I think!
0:14:13 > 0:14:15I think we get an early night!
0:14:15 > 0:14:17(If you know what I mean!)
0:14:20 > 0:14:22What was that for? Ow!
0:14:22 > 0:14:27As the happy couple call it a night, the others consider their options.
0:14:27 > 0:14:33- Oh, go on, girls! Go on! Please!- Bonjour!
0:14:33 > 0:14:37Oh, nice! Nice!
0:14:37 > 0:14:42That's lovely. I'm going out for some more fanny.
0:14:42 > 0:14:45- Richard, don't leave me! - Once our sex drive kicks in,
0:14:45 > 0:14:48we're naturally motivated to find a partner.
0:14:48 > 0:14:53And for the first time, we might experience with another person
0:14:53 > 0:14:56one of the most intense natural highs the body can create - orgasm.
0:14:56 > 0:15:01In anticipation of an intimate encounter, sexual arousal builds.
0:15:01 > 0:15:04In men, foreplay triggers an erection
0:15:04 > 0:15:07as spongy tissue in the penis fills with blood.
0:15:07 > 0:15:10In women, the clitoris and vagina swell with blood,
0:15:10 > 0:15:14lubrication occurs and the vaginal muscles relax.
0:15:14 > 0:15:18During sex, nerve endings in the penis and clitoris
0:15:18 > 0:15:22and wall of the vagina are stimulated as penetration begins.
0:15:22 > 0:15:26Nearing orgasm, male and female brains crackle with activity,
0:15:26 > 0:15:29and some 80 different areas become increasingly active.
0:15:29 > 0:15:33At climax, the brain sends signals through the body's nervous system
0:15:33 > 0:15:36to generate the physical and sensual effects of orgasm.
0:15:36 > 0:15:39In men, the result is muscles inside the base of the penis
0:15:39 > 0:15:42contracting vigorously, causing ejaculation.
0:15:42 > 0:15:46In women, waves of vaginal contractions are set in motion,
0:15:46 > 0:15:49spasming every 0.8 seconds.
0:15:49 > 0:15:52A few moments of pleasure, then it's over.
0:15:52 > 0:15:57For many, these intense sensations can be a formative experience,
0:15:57 > 0:15:59as we begin our sexual lives.
0:15:59 > 0:16:04Finding a sexual partner is not the only challenge
0:16:04 > 0:16:06we face in our early sex lives.
0:16:08 > 0:16:1023-year-old Martin had a confusing time
0:16:10 > 0:16:13when his sex drive kicked in as a teenager.
0:16:14 > 0:16:19I always saw myself different to anyone else at high school.
0:16:19 > 0:16:24I just fancied men for a long time. I just didn't want to accept it.
0:16:24 > 0:16:29I thought, "I just need to sleep with a girl. Maybe I might turn straight."
0:16:29 > 0:16:33I know it's a stupid idea. That was my way of thinking back then.
0:16:33 > 0:16:39I kissed a girl from college. It felt wet, and I wasn't really into it.
0:16:40 > 0:16:42I thought, "I want to get out now."
0:16:42 > 0:16:44It was like that.
0:16:45 > 0:16:49Around 6% of the UK population identify themselves as gay,
0:16:49 > 0:16:51lesbian or bisexual.
0:16:51 > 0:16:53I don't understand myself. I don't get why I'm gay.
0:16:53 > 0:16:58It's not, like, "What would you like to be? Push a button to decide."
0:16:58 > 0:17:00It doesn't work like that.
0:17:00 > 0:17:04Throughout the last century, most scientists believed people were gay
0:17:04 > 0:17:08because of childhood experiences and how they were brought up.
0:17:08 > 0:17:09By the 1990s, however,
0:17:09 > 0:17:12these theories started to fall out of favour.
0:17:12 > 0:17:16There's one good way of shooting them down, and that is to
0:17:16 > 0:17:19look at sexual orientation in the children of gay parents.
0:17:19 > 0:17:22Most of those kids are heterosexual.
0:17:22 > 0:17:25Probably about 95%, let's say, and the remainder are gay, which is
0:17:25 > 0:17:28perfectly consistent with what you'd get by chance.
0:17:28 > 0:17:32In 1993, biological theories to explain
0:17:32 > 0:17:34why some people are gay hit the headlines.
0:17:34 > 0:17:38Scientists in the United States say they've uncovered new evidence
0:17:38 > 0:17:42which supports the theory that homosexuality might be hereditary.
0:17:42 > 0:17:45Inside every cell in our body lie our chromosomes.
0:17:45 > 0:17:48They hold thousands of genes that tell our bodies
0:17:48 > 0:17:49how to develop and function.
0:17:49 > 0:17:53Scientists Dean Hamer studied 40 pairs of homosexual brothers
0:17:53 > 0:17:56and found that the majority shared a set of five markers
0:17:56 > 0:18:00on the long arm of one chromosome - the X chromosome.
0:18:00 > 0:18:04It suggested there was a gene or genes in this area that might
0:18:04 > 0:18:06influence our sexuality.
0:18:06 > 0:18:08Dean Hamer's finding was controversial at the time,
0:18:08 > 0:18:12because it challenged the orthodoxy of those in the anti-gay camp
0:18:12 > 0:18:16who argued that sexual orientation could be changed.
0:18:16 > 0:18:21Dean Hamer's study has never been well replicated, and scientists have
0:18:21 > 0:18:25never definitively identified a gay gene or genes.
0:18:25 > 0:18:28Science continues to look to our biology, and recent theories have
0:18:28 > 0:18:32explored how hormones might influence our sexuality.
0:18:32 > 0:18:34One of the ideas of how hormones might organise
0:18:34 > 0:18:37sexual orientation is that gay men are exposed to
0:18:37 > 0:18:39lower levels of testosterone in the womb.
0:18:39 > 0:18:42If you have just the right amount of testosterone,
0:18:42 > 0:18:46you develop into a heterosexual, but if you have too little testosterone
0:18:46 > 0:18:50or too much, that causes shifts in the female typical direction.
0:18:52 > 0:18:54Once Martin realised he was gay,
0:18:54 > 0:18:57he decided to tell some close friends at college.
0:18:57 > 0:19:00'I was shaking. I could hardly breathe.'
0:19:00 > 0:19:03To say the words "I'm gay" was like lifting the heaviest weight
0:19:03 > 0:19:06you could think of.
0:19:06 > 0:19:09'It was the most scary thing I've done in my life.
0:19:09 > 0:19:10'Nothing could beat that.'
0:19:10 > 0:19:13'We used to have a bit of banter with him and say, "Are you gay?,"'
0:19:13 > 0:19:16and stuff like that, but we didn't know for sure,
0:19:16 > 0:19:18but when he told us, we were all all right with it.
0:19:20 > 0:19:22Despite coming out to his friends,
0:19:22 > 0:19:26Martin has yet to tell his mum he's gay.
0:19:26 > 0:19:32There were many times I've wanted to tell her, "Mum, I'm gay,"
0:19:32 > 0:19:36but I'm always, like, "Mum... Uh, nothing."
0:19:38 > 0:19:40As a result of not being fully out,
0:19:40 > 0:19:43Martin has never really explored the gay scene.
0:19:43 > 0:19:47I feel comfortable in the straight world.
0:19:47 > 0:19:49I don't know anyone in the gay scene or any gay people.
0:19:49 > 0:19:52All my friends are straight.
0:19:53 > 0:19:58Going out to straight bars can have its frustrations for Martin when his mates start pulling.
0:19:58 > 0:20:02Chris is trying to pull a girl, he's like... Well, he's a slut.
0:20:02 > 0:20:03When he talks to me, he's like,
0:20:03 > 0:20:06"I shagged this bird, and I did that to her."
0:20:06 > 0:20:07"Chris, I don't want to know".
0:20:10 > 0:20:12I'm frickin' jealous - everyone else is on the pull.
0:20:12 > 0:20:15It's like, "It's easy for you, you're straight,
0:20:15 > 0:20:17"you're in straight clubs on the pull,
0:20:17 > 0:20:19"I'm a gay guy going to straight clubs and I can't pull."
0:20:19 > 0:20:23Obviously, if he's attracted to a straight man,
0:20:23 > 0:20:25if he says something, he could get a punch on the nose.
0:20:25 > 0:20:28That's the way of society, you see, so...
0:20:28 > 0:20:30Even when the gang move on to a drag bar,
0:20:30 > 0:20:33Martin's mate Chris looks more at home than him.
0:20:36 > 0:20:39By the powers of Grayskull!
0:20:39 > 0:20:42He'll do it, I know he will! He gets his cock and arse out all the time.
0:20:42 > 0:20:44He'll do it, look!
0:20:49 > 0:20:52I'm not into that sort of thing. It just seems a bit full-on.
0:20:52 > 0:20:55I don't know what's wrong with me. I feel I'm mad in the head.
0:20:55 > 0:20:58I'm a gay guy who likes straight clubs,
0:20:58 > 0:21:01but when I go into gay clubs, I, like, get nervous.
0:21:03 > 0:21:07I, like, don't know what to do. It's like I feel trapped.
0:21:09 > 0:21:12For Martin, the key to feeling comfortable with his sexuality is
0:21:12 > 0:21:13finally coming out to his mum.
0:21:13 > 0:21:17If I tell her, I can, like,
0:21:17 > 0:21:19feel free to bring home a guy I'm in a relationship with.
0:21:19 > 0:21:21I don't have to prance about anymore.
0:21:21 > 0:21:23So it would change my life. No more sneakiness.
0:21:23 > 0:21:26Chris, what were you thinking?
0:21:26 > 0:21:29You got your arse out in front of everyone.
0:21:29 > 0:21:32- So, how are you feeling today, Callum?- I'm OK!
0:21:32 > 0:21:36Callum and Corrina have been spending every day together,
0:21:36 > 0:21:39and their relationship has entered a new phase.
0:21:39 > 0:21:43- Expand the feelings of how you're feeling.- I'm fine!
0:21:43 > 0:21:46We were down on this little island thing, and he's like,
0:21:46 > 0:21:49"Corrina, come over here, I need to talk to you." I was like, "OK, then."
0:21:49 > 0:21:52He was like, "Corrina, I might be a hypocrite,
0:21:52 > 0:21:55"I've told you before, but I think I do actually love you."
0:21:55 > 0:21:57And my heart just, like...
0:21:57 > 0:22:00exploded, really. I was like, "Oh, wow!"
0:22:01 > 0:22:03Had you planned to say it?
0:22:03 > 0:22:06No, it were quite spontaneous. It were just...
0:22:06 > 0:22:09I was just with her and I thought, "I actually love her,
0:22:09 > 0:22:12"so I'll tell her, cos she's brilliant."
0:22:12 > 0:22:15For the next week or so, I had a massive smile on my face.
0:22:15 > 0:22:17I was like...
0:22:17 > 0:22:19"Say it again!"
0:22:25 > 0:22:27I could tell it made her very, very happy.
0:22:27 > 0:22:29Ecstatic might be a better word.
0:22:29 > 0:22:34To me, love feels like loads of butterflies in your stomach.
0:22:34 > 0:22:36And when I'm not with him, I think about him.
0:22:36 > 0:22:42It is just knowing that someone is there for you,
0:22:42 > 0:22:46and that you're there for somebody else, always.
0:22:54 > 0:22:57Corrina is wondering if the couple's new-found love for each other
0:22:57 > 0:23:00will lead to the next big step in their relationship.
0:23:00 > 0:23:04Lately, I keep thinking, "Are we actually going to have sex?"
0:23:04 > 0:23:09You know, when, if, you know, all them type of questions. What if?
0:23:09 > 0:23:14I feel nervous for the obvious reason that it might just not work.
0:23:14 > 0:23:17And there's a part of me thinking, what's Corrina going to think
0:23:17 > 0:23:19if...you know, if it don't work?
0:23:19 > 0:23:22Is she going to fall out with me? Is she going to be upset?
0:23:22 > 0:23:25Will it just destroy the relationship completely?
0:23:25 > 0:23:28That's, like, the dark, paranoid side of me coming out.
0:23:28 > 0:23:31'Because the way I see it, because Callum hasn't had sex before,
0:23:31 > 0:23:34'I always think, you know, he's waiting for the right person.'
0:23:34 > 0:23:37I'm not trying to rush Callum,
0:23:37 > 0:23:40but, yeah, I'm just thinking about things, you know.
0:23:40 > 0:23:42Oh, look at that!
0:23:43 > 0:23:46In New York City, scientists are trying to find out
0:23:46 > 0:23:50why the feelings of new love have such powerful ups and downs.
0:23:51 > 0:23:54Actors Diana and Albert have been going out for seven months,
0:23:54 > 0:23:57and have agreed to take part in a study.
0:23:57 > 0:24:00I actually think this is going to be the first time
0:24:00 > 0:24:02I've seen you drink a cup of coffee,
0:24:02 > 0:24:04and I'm actually quite surprised by that!
0:24:05 > 0:24:09'We met in rehearsal at the Living Theatre,'
0:24:09 > 0:24:12and I remember seeing him in rehearsal,
0:24:12 > 0:24:15- and he was in his workout gear... - I was not wearing workout gear!
0:24:15 > 0:24:19You look like you're wearing workout gear right now.
0:24:21 > 0:24:22- Just give me a kiss.- Yeah!
0:24:26 > 0:24:29Today's experiment is one of the first to look at brain activity
0:24:29 > 0:24:32during early-stage intense romantic love.
0:24:32 > 0:24:35What we're going to do is scan the brain of a young woman
0:24:35 > 0:24:38who says that she's madly in love,
0:24:38 > 0:24:40and what we're trying to find out is
0:24:40 > 0:24:43exactly what is going on in the brain when you feel that elation,
0:24:43 > 0:24:48the euphoria, the giddiness, the possessiveness, the motivation,
0:24:48 > 0:24:52the craving, the obsessive thinking of early intense romantic love.
0:24:52 > 0:24:53Hello, hello!
0:24:53 > 0:24:56First of all, Diana must be assessed
0:24:56 > 0:25:00to check she is sufficiently in love to take part in the test.
0:25:00 > 0:25:01What were some of your bodily reactions
0:25:01 > 0:25:03when you began to be interested in him?
0:25:03 > 0:25:07I remember the second he walked in, it was like...
0:25:07 > 0:25:11It was, like, shaking. I mean, I'm sitting at the desk,
0:25:11 > 0:25:15I'm doing my keyboard thing, and I was just so happy...
0:25:15 > 0:25:19- He was there, you know? Like, elation and warmth.- Elation?
0:25:19 > 0:25:24- Elation.- That's a major aspect of intense romantic love.
0:25:27 > 0:25:31That's what love is like - it's a very powerful experience.
0:25:31 > 0:25:32We need to capture you
0:25:32 > 0:25:37in that intense feeling of romantic passion for Albert.
0:25:38 > 0:25:42Diana has agreed to go into an fMRI scanner
0:25:42 > 0:25:44to see which parts of her brain are most active
0:25:44 > 0:25:45when she thinks of Albert.
0:25:45 > 0:25:49- I'm ready, I'm ready, I'm excited, I'm excited! OK, bye.- Bye.
0:25:49 > 0:25:51- Hi!- Hi!
0:25:51 > 0:25:54In the scanner, Diana is shown a favourite photo of Albert
0:25:54 > 0:25:57on a loop for four seconds at a time.
0:25:57 > 0:25:59Look at his face!
0:25:59 > 0:26:01Then, to cleanse her mind,
0:26:01 > 0:26:03she is asked to count down in increments of seven
0:26:03 > 0:26:05from a random number.
0:26:06 > 0:26:08Finally, Diana is shown a photo of a friend
0:26:08 > 0:26:11she has no romantic feelings for.
0:26:12 > 0:26:16The research team is looking for differences in brain activity
0:26:16 > 0:26:19when Diana thinks of Albert compared to when she thinks of her friend.
0:26:19 > 0:26:22Here's the area where we're hoping to see the activity.
0:26:22 > 0:26:27We're hoping the scanner can pick this up, because we know it's there.
0:26:27 > 0:26:30It's just a little factory near the base of the brain...
0:26:30 > 0:26:33The team suspect the ventral tegmental area in the brain is
0:26:33 > 0:26:37particularly active in the first stages of romantic love,
0:26:37 > 0:26:40releasing large amounts of the chemical dopamine.
0:26:40 > 0:26:42Dopamine is a natural stimulant.
0:26:42 > 0:26:44When you see a picture of your lover,
0:26:44 > 0:26:46the dopamine system is triggered
0:26:46 > 0:26:50to give you that intense rush of intense infatuation.
0:26:50 > 0:26:54Dopamine pathways in the brain produce focus, craving,
0:26:54 > 0:26:58goal-oriented behaviours and motivation - in this case,
0:26:58 > 0:27:01the motivation to win the love of a would-be partner.
0:27:01 > 0:27:05These are really great results. They're very specific
0:27:05 > 0:27:10for this lower brain stem area that we saw active.
0:27:10 > 0:27:13There we are, romantic love.
0:27:13 > 0:27:17Boy, to be able to put your finger on...a little dot.
0:27:17 > 0:27:20Diana, the experiment's over, and we're coming to get you.
0:27:20 > 0:27:21Perfect.
0:27:21 > 0:27:23Some scientists believe
0:27:23 > 0:27:27the strong drive to be together many new lovers experience is
0:27:27 > 0:27:29essential to our survival.
0:27:29 > 0:27:33Romantic love has an important evolutionary purpose,
0:27:33 > 0:27:38which was to enable the brain to focus that mating energy
0:27:38 > 0:27:42on just one individual, and start the mating process.
0:27:42 > 0:27:44- So, I take it your brain is still intact?- Uh-huh.
0:27:44 > 0:27:47And, indeed, it's the most important thing that we do.
0:27:47 > 0:27:51It is this way that we pass our DNA on to tomorrow.
0:27:51 > 0:27:53- Were you nervous?- Yeah.
0:27:54 > 0:27:56'I was actively thinking about Albert.'
0:27:56 > 0:27:58And I just got these images of the future.
0:27:58 > 0:28:01Rather than thinking about the past, suddenly it shot to the future,
0:28:01 > 0:28:06I thought, "What's going to happen in two months, ten years...
0:28:06 > 0:28:10"15, 20, 30, 40?!"
0:28:10 > 0:28:13And I was just... I realized I was smiling the whole time.
0:28:13 > 0:28:16# I think I'm in love... #
0:28:18 > 0:28:22Today, Odele and Andy will celebrate their love in front of 500 guests
0:28:22 > 0:28:23when they get married.
0:28:23 > 0:28:25And after the ceremony,
0:28:25 > 0:28:29they'll be free to explore sex for the very first time.
0:28:29 > 0:28:33It still doesn't really feel like it's my wedding day.
0:28:33 > 0:28:36But I don't feel nervous, just feel really excited.
0:28:37 > 0:28:41Andy and his ushers are posing for pre-wedding photos
0:28:41 > 0:28:43when word comes through from the bride's house.
0:28:43 > 0:28:45She's wearing white.
0:28:45 > 0:28:47White means for a virgin, traditionally.
0:28:47 > 0:28:50- It's more purity, isn't it? - Are you wearing white, Andy?!
0:28:50 > 0:28:54Some of Andy's mates also waited for marriage before having sex.
0:28:54 > 0:28:59I did give Andy some advice, but nothing too serious.
0:28:59 > 0:29:01I'll leave it for him and Odele to work it out!
0:29:01 > 0:29:03The mechanics!
0:29:03 > 0:29:04I'm sure they'll be fine.
0:29:04 > 0:29:07I gave him some advice, more practical advice.
0:29:07 > 0:29:10Pack of digestives under one of the pillows to keep your stamina up.
0:29:12 > 0:29:16Refraining from sex has not always been easy for Odele and Andy.
0:29:16 > 0:29:20'I'm a red-blooded male, so when me Odele get intimate, you know,'
0:29:20 > 0:29:23your heart does beat fast, you do get excited,
0:29:23 > 0:29:25you start to think with other things other than your head.
0:29:25 > 0:29:27'Men and women are different
0:29:27 > 0:29:30'in terms of when they become sexually excited.
0:29:30 > 0:29:32'Andy is like a gas oven.'
0:29:32 > 0:29:36Turn it on and it's instant heat, excitement, and there's a big flame.
0:29:36 > 0:29:37And other men - not just me.
0:29:37 > 0:29:40And you turn it off and it goes straight away. Whereas women,
0:29:40 > 0:29:43they're more like an electric oven - they take longer to heat up,
0:29:43 > 0:29:46'but the moment that they have got hot,
0:29:46 > 0:29:48'it takes them longer to cool down.'
0:29:48 > 0:29:50'I think Odele is a lot better at this than I am.'
0:29:50 > 0:29:52She can tend to step back.
0:29:52 > 0:29:55I think we would have had sex by now if it was over to me.
0:29:55 > 0:29:58- BOTH:- I give you this ring as a sign of our marriage.
0:29:58 > 0:30:00With my body, I honour you.
0:30:00 > 0:30:01All that I am, I give to you.
0:30:01 > 0:30:04- Amen.- Amen.
0:30:04 > 0:30:07It gives me great pleasure to now announce you as husband and wife.
0:30:07 > 0:30:09You may celebrate with a kiss.
0:30:09 > 0:30:13APPLAUSE
0:30:16 > 0:30:21'It will be fantastic when we do have sex in the context of marriage,'
0:30:21 > 0:30:24and the fact that we can both enter that without having
0:30:24 > 0:30:27previous sexual experience is fantastic.
0:30:27 > 0:30:29CHEERING
0:30:29 > 0:30:32First-time sex can often be a case of trial and error, but the fact
0:30:32 > 0:30:36Odele and Andy are deeply in love may stand them in good stead.
0:30:36 > 0:30:40Some scientists believe that, particularly when women are in love,
0:30:40 > 0:30:42they have better-quality orgasms,
0:30:42 > 0:30:45and can achieve orgasm more easily than those who aren't.
0:30:45 > 0:30:47In tests, this has been linked to
0:30:47 > 0:30:49a brain region called the left insular,
0:30:49 > 0:30:53which showed greater activity when women saw their beloved's name written down.
0:30:54 > 0:30:57The more satisfied the female test subjects were with
0:30:57 > 0:31:00the quality of orgasms in their sexual relationship,
0:31:00 > 0:31:02the more this brain area was activated.
0:31:06 > 0:31:09I've had the most perfect day ever.
0:31:09 > 0:31:11I'm never intending to do this again,
0:31:11 > 0:31:15so it's the best thing that's ever happened. It's just great.
0:31:15 > 0:31:16It's a fantastic reception.
0:31:16 > 0:31:19Lots of people here that I love and respect and, obviously,
0:31:19 > 0:31:21just to share that with Odele is incredible.
0:31:21 > 0:31:26At the reception, conversation turns to the wedding night.
0:31:26 > 0:31:30We've talked openly about, obviously, tonight, THE night,
0:31:30 > 0:31:32and what it might be like and what to expect,
0:31:32 > 0:31:34and all of those type of things,
0:31:34 > 0:31:36and I think they're looking forward to it an awful lot!
0:31:36 > 0:31:38In fact, I can't see them now...!
0:31:38 > 0:31:40THEY LAUGH
0:31:40 > 0:31:43'We would view sex as something much more than a physical act -
0:31:43 > 0:31:48- 'it's got emotional aspects to it.' - 'Within a loving context,'
0:31:48 > 0:31:49and it is fantastic,
0:31:49 > 0:31:51because it's that relationship that leads to good sex,
0:31:51 > 0:31:55that love, that commitment that leads to a good sex life.
0:31:59 > 0:32:02Choosing when to have sex for the first time
0:32:02 > 0:32:07and who with is a major decision. And we don't always get it right.
0:32:07 > 0:32:1020% of young men and over 40% of young women
0:32:10 > 0:32:13feel they had sex for the first time too soon.
0:32:13 > 0:32:16In recent years, a small minority has taken the extreme step
0:32:16 > 0:32:18of resorting to cosmetic surgery
0:32:18 > 0:32:22in an attempt to return themselves to the physical state they were in
0:32:22 > 0:32:26before first sex. The procedure is called hymenoplasty.
0:32:26 > 0:32:28The hymen is a thin, fleshy membrane
0:32:28 > 0:32:31that is found at the opening to the vagina.
0:32:31 > 0:32:33When the hymen is stretched, it can rupture,
0:32:33 > 0:32:35which sometimes causes bleeding.
0:32:35 > 0:32:37For a long time, it was believed
0:32:37 > 0:32:40an intact hymen was evidence of virginity,
0:32:40 > 0:32:42and that it would be broken
0:32:42 > 0:32:44the first time a woman has penetrative sex.
0:32:44 > 0:32:47However, the hymen can be ruptured in many different ways,
0:32:47 > 0:32:51such as horse riding or through the insertion of a tampon,
0:32:51 > 0:32:52Despite this, in some cultures,
0:32:52 > 0:32:56the hymen is still symbolic of virginity.
0:32:56 > 0:32:59'What we do in a hymenoplasty is recreate that barrier'
0:32:59 > 0:33:06so that it re-virginises, so to speak, the patient.
0:33:06 > 0:33:08Today's patient is Judy,
0:33:08 > 0:33:11a committed Christian who regrets losing her virginity
0:33:11 > 0:33:12to a high-school sweetheart.
0:33:12 > 0:33:15She's asked to be anonymous, as she fears she will be ostracized
0:33:15 > 0:33:19if it becomes public she is not a virgin.
0:33:19 > 0:33:23'I was born into a very, very conservative Catholic home.'
0:33:23 > 0:33:26Sex before marriage is not allowed at all.
0:33:26 > 0:33:28He was my best friend.
0:33:28 > 0:33:32We did date for a little while in high school, and it was hard,
0:33:32 > 0:33:36because he had really strict parents and I had very strict parents.
0:33:36 > 0:33:39He had told me that he was in love with me.
0:33:39 > 0:33:42He did propose to me.
0:33:42 > 0:33:46So I said yes, and, you know, we're engaged.
0:33:46 > 0:33:50And then, one night, it just happened.
0:33:51 > 0:33:53Judy and her boyfriend had sex once.
0:33:53 > 0:33:57Then, two months later, he disappeared.
0:33:57 > 0:33:59She eventually caught up with him on Facebook.
0:34:00 > 0:34:04He messaged me back saying, "I'm sorry to tell you this,
0:34:04 > 0:34:05"but I got married a week ago.
0:34:05 > 0:34:08"I met THE most amazing girl ever,
0:34:08 > 0:34:11"and I had to leave because I loved you too much."
0:34:12 > 0:34:16'I was in shock. I gave him my virginity.
0:34:17 > 0:34:21'I gave him something sacred that. At the time,
0:34:21 > 0:34:25'I felt like I wasn't going to get it back, ever.'
0:34:26 > 0:34:30Hymenoplasty costs between £2,000 and £4,000
0:34:30 > 0:34:32and is relatively rare,
0:34:32 > 0:34:34with this clinic in the US performing
0:34:34 > 0:34:35just seven procedures a year.
0:34:35 > 0:34:38The first step is to expose the area
0:34:38 > 0:34:41so one can actually see what is going on.
0:34:41 > 0:34:43You may feel a little pinch.
0:34:43 > 0:34:46And the second step, the edges are freshened up -
0:34:46 > 0:34:50I mean cutting the old scar that has formed
0:34:50 > 0:34:53on the free edge of the hymen,
0:34:53 > 0:34:55allowing a bleeding edge to form,
0:34:55 > 0:34:58and the final step is a suture
0:34:58 > 0:35:03on the outside layer of the hymenal wall
0:35:03 > 0:35:05that faces the exterior.
0:35:05 > 0:35:08Now, you don't want to tighten it too much,
0:35:08 > 0:35:12otherwise, the next time you have sex,
0:35:12 > 0:35:15it will be exceedingly difficult.
0:35:17 > 0:35:19Nothing can change how Judy lost her virginity,
0:35:19 > 0:35:23but she hopes this procedure will make her feel more comfortable
0:35:23 > 0:35:26about the prospect of first sex with her current partner,
0:35:26 > 0:35:28who she thinks she will one day marry.
0:35:28 > 0:35:33'He wants to know that he is the only one I have ever been with.
0:35:33 > 0:35:37'The night of the wedding, he is expecting to see blood on the sheet.'
0:35:37 > 0:35:39So, here's now the repaired hymen.
0:35:39 > 0:35:41After a few months,
0:35:41 > 0:35:44not even a doctor will be able to tell.
0:35:44 > 0:35:48'Maybe I won't be that 100% virgin that I once was,
0:35:48 > 0:35:49'but I will be one again,
0:35:49 > 0:35:52'and that's what I'm looking forward to.
0:35:52 > 0:35:55'Just being a virgin again, and being myself.'
0:35:58 > 0:36:00In Kavos, it's another night on the pull,
0:36:00 > 0:36:03and the lads are reaching for a spot of Dutch courage.
0:36:03 > 0:36:06The booze is really cheap.
0:36:06 > 0:36:08I tried loads of cocktails.
0:36:08 > 0:36:13- Fish bowls...- Sex on the beach... - Blue lagoon...- The head fucker.
0:36:14 > 0:36:18Where we come from, they don't really serve those kinds of drinks.
0:36:18 > 0:36:21They don't measure your shots, it's purely just slapped in a glass.
0:36:26 > 0:36:29Really good. Um... It's very, very messy.
0:36:29 > 0:36:34There's loads of atmosphere, but, yeah, it's class!
0:36:35 > 0:36:36As the booze flows,
0:36:36 > 0:36:39the lads' confidence with women seems to rocket.
0:36:39 > 0:36:41If I didn't drink, I wouldn't have pulled.
0:36:41 > 0:36:44It stops you from thinking about what you're going to say.
0:36:44 > 0:36:48When we have an alcoholic drink, it washes down to the stomach
0:36:48 > 0:36:50and into the small intestine,
0:36:50 > 0:36:52where it rapidly absorbs into the bloodstream
0:36:52 > 0:36:56and is sent pumping round the body and to the brain.
0:36:57 > 0:37:00In the part of the brain responsible for social inhibitions,
0:37:00 > 0:37:04nerve cells talk to each other by sending chemical messages that influence how we act.
0:37:06 > 0:37:09If we see someone we fancy but can't get the courage to talk to them,
0:37:09 > 0:37:13it's messages sent from this area that are inhibiting us.
0:37:13 > 0:37:16Alcohol depresses the ability of this part of the brain
0:37:16 > 0:37:19to send and receive these chemical messages,
0:37:19 > 0:37:21and we become much less inhibited
0:37:21 > 0:37:26and much more self-confident with potential sexual partners.
0:37:26 > 0:37:31'I think the alcohol makes me not care about how I come across.
0:37:31 > 0:37:33'I'm definitely the person who needs that,'
0:37:33 > 0:37:38a bit of Dutch courage to up the ante and get in there, so to speak.
0:37:39 > 0:37:42Booze doesn't just make us less sexually inhibited.
0:37:42 > 0:37:45Scientists also reckon we actually fancy more people when we're drunk
0:37:45 > 0:37:48than when we're sober.
0:37:49 > 0:37:51It's called the beer-goggles effect,
0:37:51 > 0:37:54and it's a phenomenon customers at a pub in South London
0:37:54 > 0:37:56are all too familiar with.
0:37:56 > 0:37:59Beer goggles is the ruin of all mankind.
0:37:59 > 0:38:01It means you start looking at women
0:38:01 > 0:38:05and you think they're sexy when they're not.
0:38:05 > 0:38:08Put it this way, I've seen what she gets with when she's drunk!
0:38:08 > 0:38:10No, no!
0:38:10 > 0:38:14Scientists Lewis Halsey and Jorg Huber are carrying out an experiment
0:38:14 > 0:38:18to find out why people might appear more attractive after a few drinks.
0:38:20 > 0:38:22Their study is based around the idea that
0:38:22 > 0:38:23alcohol might affect our ability
0:38:23 > 0:38:26to detect asymmetry in the faces of others.
0:38:28 > 0:38:32People tend to find mates, or potential mates or partners,
0:38:32 > 0:38:34more attractive when they're more symmetrical.
0:38:34 > 0:38:38It's all about finding a mate that will provide good genes
0:38:38 > 0:38:40to go with yours for your offspring
0:38:40 > 0:38:43and will also likely provide for your offspring well.
0:38:43 > 0:38:46You will be shown 20 pairs of faces.
0:38:46 > 0:38:51- OK.- And your job is to decide which one is more attractive.
0:38:51 > 0:38:53HE LAUGHS
0:38:53 > 0:38:55- OK.- Yeah, so...
0:38:55 > 0:38:57I'm finding YOU very attractive at the moment!
0:38:57 > 0:38:59Yeah, that's kind of you to say...
0:38:59 > 0:39:04One face in each pair has been subtly manipulated to make it look
0:39:04 > 0:39:08more symmetrical than the other, and participants must decide which they prefer.
0:39:08 > 0:39:12The theory that we're working on was that people who were drunk
0:39:12 > 0:39:14may be less able to see asymmetry in a face than people
0:39:14 > 0:39:18who are sober, and if they can't see the asymmetry,
0:39:18 > 0:39:20then they can't see that lack of attractiveness.
0:39:20 > 0:39:23Therefore, they see the face as being more attractive.
0:39:23 > 0:39:24After judging the faces,
0:39:24 > 0:39:28participants take a breathalyser test to measure how much alcohol is
0:39:28 > 0:39:30in their bloodstream.
0:39:30 > 0:39:32- 71.- What does that mean?
0:39:32 > 0:39:35- It's a fair amount. - Is that really high?
0:39:35 > 0:39:38So we found that sober people
0:39:38 > 0:39:41more often prefer the symmetrical face of a pair of faces
0:39:41 > 0:39:43when they had the choice
0:39:43 > 0:39:46than did the drunk participants.
0:39:46 > 0:39:51You preferred the symmetrical face just eight times out of 20.
0:39:51 > 0:39:54'There's some reasonable evidence here, not conclusive,
0:39:54 > 0:39:59'but reasonable evidence, that a lot of ability to perceive asymmetry after drinking alcohol'
0:39:59 > 0:40:01is at least part of the mechanism
0:40:01 > 0:40:04explaining what we call beer goggles.
0:40:04 > 0:40:08Drinking and dating may be fun, but winding up with someone
0:40:08 > 0:40:11we don't fancy is not the only risk attached.
0:40:11 > 0:40:14Surveys say that people are three times more likely
0:40:14 > 0:40:16to have unprotected sex when drunk.
0:40:16 > 0:40:19For men, the main method of contraception is the condom,
0:40:19 > 0:40:23which reduces the risk of STIs and pregnancy.
0:40:23 > 0:40:25For young women, the pill is most popular.
0:40:25 > 0:40:29It won't protect against STIs, but is around 99% effective
0:40:29 > 0:40:32in preventing pregnancy if used properly.
0:40:32 > 0:40:35It caused a storm when it came out in 1961.
0:40:35 > 0:40:39- NEWSREEL:- 'This little white tablet is more explosive than dynamite.
0:40:39 > 0:40:42'What its effect will be on the future of mankind is something
0:40:42 > 0:40:44'nobody can foretell.'
0:40:44 > 0:40:48The pill prevents women from getting pregnant by interrupting
0:40:48 > 0:40:52the normal hormonal changes that control the menstrual cycle.
0:40:52 > 0:40:55Normally, hormones trigger the growth of what are called follicles
0:40:55 > 0:41:00in the ovaries of women, and every month, one of these follicles dominates the others in size
0:41:00 > 0:41:04and releases an egg which can potentially be fertilised by sperm.
0:41:07 > 0:41:10The pill slows the release of certain hormones,
0:41:10 > 0:41:13which restricts the follicles from growing and, by extension,
0:41:13 > 0:41:16an egg from growing and being released for fertilisation.
0:41:18 > 0:41:20The pill is only effective, however,
0:41:20 > 0:41:23if users remember to take it every day.
0:41:23 > 0:41:27Victoria went on the pill when she became sexually active
0:41:27 > 0:41:29in her late teens.
0:41:29 > 0:41:31I finished school at 18,
0:41:31 > 0:41:35and I'd kind of messed up my final year, I'd struggled with depression
0:41:35 > 0:41:38and things like that, and had been just going out and drinking a lot.
0:41:41 > 0:41:45I was sleeping with a lot of people, and I thought I was having fun,
0:41:45 > 0:41:50but when I look back at it now, I think, probably 80% of the time,
0:41:50 > 0:41:53I wasn't having fun - it was more desperation.
0:41:53 > 0:41:57Victoria's chaotic lifestyle meant she often forgot to take her pill.
0:41:57 > 0:42:00When I went home with somebody, I would know that
0:42:00 > 0:42:02I was going to have unprotected sex.
0:42:02 > 0:42:04I knew that I was going to be stupid.
0:42:04 > 0:42:08I couldn't talk about it with people back then, just couldn't do it.
0:42:08 > 0:42:10I didn't want them to talk about it.
0:42:10 > 0:42:12I didn't want to deal it - too much reality.
0:42:15 > 0:42:17I knew the last person I slept with...
0:42:17 > 0:42:19I just knew that I was pregnant.
0:42:19 > 0:42:22I knew it, and it was a miracle that it didn't happen sooner.
0:42:22 > 0:42:26After confirming she was pregnant, Victoria went to her parents
0:42:26 > 0:42:27with the news.
0:42:27 > 0:42:30They both came into the lounge and sat next to me
0:42:30 > 0:42:31on the sofa and just held my hand.
0:42:31 > 0:42:34And just asked me what I wanted to do.
0:42:34 > 0:42:35And they were amazing.
0:42:35 > 0:42:38I told them that I didn't want to be pregnant,
0:42:38 > 0:42:41and I didn't want to have a baby. And they just said, "OK."
0:42:43 > 0:42:47Abortion was legalized in the UK in 1967.
0:42:47 > 0:42:51The pro-life lobby argue abortion goes against the rights
0:42:51 > 0:42:53of an unborn child.
0:42:53 > 0:42:57There's been over 4.5 million unborn children killed by abortion.
0:42:57 > 0:43:00Pro-choice groups view legal abortion as a major step forward
0:43:00 > 0:43:02in women's rights.
0:43:02 > 0:43:05Before 1967, the Home Office statistics showed that
0:43:05 > 0:43:09between 30 and 50 women a year died as a result of criminal abortion.
0:43:09 > 0:43:12Abortion rates increased slightly last year,
0:43:12 > 0:43:15and nearly 190,000 were performed in England and Wales.
0:43:15 > 0:43:18When Victoria opted to have an abortion, she felt
0:43:18 > 0:43:21she was just not ready to cope with becoming a mother.
0:43:21 > 0:43:26I wasn't willing to give up my life, you know?
0:43:26 > 0:43:29Messed-up as it was, I wasn't willing to change it that massively.
0:43:29 > 0:43:32When she arrived at hospital for her abortion,
0:43:32 > 0:43:34Victoria was sent for an ultrasound scan.
0:43:34 > 0:43:37'You see people going for scan on TV, or your friends go for a scan'
0:43:37 > 0:43:40when they are pregnant, and it's a happy event.
0:43:40 > 0:43:45They see the baby on the screen and they hear the heartbeat.
0:43:45 > 0:43:48And so having that experience
0:43:48 > 0:43:52and it being a completely opposite feeling was very strange,
0:43:52 > 0:43:53and it was horrible.
0:43:54 > 0:43:57Victoria had her abortion and left hospital the same day.
0:43:57 > 0:43:58A week later, however,
0:43:58 > 0:44:02she started to experience painful stomach cramps.
0:44:02 > 0:44:05'The pain was so bad that it would wake me up in the night,
0:44:05 > 0:44:08'and I was doubled over in excruciating pain.'
0:44:08 > 0:44:11No painkiller would make it better.
0:44:11 > 0:44:13After three weeks, the pain stopped,
0:44:13 > 0:44:16and she experienced a heavy vaginal discharge.
0:44:16 > 0:44:21I had no idea what it was, but it was something and it was big,
0:44:21 > 0:44:26it was round, it was grim, it was nasty.
0:44:26 > 0:44:28'I went to my GP straightaway,
0:44:28 > 0:44:34'and they basically said that it was remnants of the stuff that'
0:44:34 > 0:44:39they had failed to suck out of my womb when I'd had the abortion.
0:44:39 > 0:44:41It was horrifying.
0:44:42 > 0:44:46What happened to Victoria occurs in just 1% of cases.
0:44:46 > 0:44:48Despite the complications she went through,
0:44:48 > 0:44:50she doesn't regret having an abortion.
0:44:50 > 0:44:53In the seven years since her procedure, she's travelled widely
0:44:53 > 0:44:55and has met her partner.
0:44:55 > 0:44:57The couple are now planning their wedding.
0:44:57 > 0:45:02'Abortion is absolutely not a contraceptive choice.'
0:45:02 > 0:45:04It's one of the most important things in the entire world,
0:45:04 > 0:45:06whether you have a baby or not.
0:45:06 > 0:45:09Um... You have to...
0:45:09 > 0:45:12If you are not going to through with it, you have to justify it,
0:45:12 > 0:45:13you have to...
0:45:13 > 0:45:16I have to live a better life.
0:45:22 > 0:45:24# I was raised up
0:45:24 > 0:45:27# Believing I was somehow... #
0:45:27 > 0:45:30In Blackpool, Martin has been building up courage
0:45:30 > 0:45:32to tell his mum he's gay.
0:45:32 > 0:45:36Before the big conversation, he visits his counsellor, Steve,
0:45:36 > 0:45:38for some advice.
0:45:38 > 0:45:40Today is Saturn V rocket launch day.
0:45:40 > 0:45:43We're on the launch pad, and we're going for it.
0:45:43 > 0:45:47And it doesn't actually do you any good to keep...you know...
0:45:47 > 0:45:49to stop the launch.
0:45:49 > 0:45:52I mean, why in the hell can't I bloody just say, "Mum, I'm gay"?
0:45:52 > 0:45:54Because it's approval, isn't it?
0:45:54 > 0:45:56- Mmm.- You want Mum's approval.
0:45:56 > 0:45:59You don't want to upset Mum, but you still want Mum's love.
0:45:59 > 0:46:03The scary thing is the reaction. What should I expect?
0:46:03 > 0:46:05Is she going to be mad? Is she going to be fine?
0:46:05 > 0:46:07What's she going to be like? I don't know.
0:46:07 > 0:46:10'It's a very, very big day for him today.'
0:46:10 > 0:46:13This coming-out process is essential to Martin's
0:46:13 > 0:46:15development as a human being.
0:46:15 > 0:46:19'It's fundamental. You can't live in a society where you are forced
0:46:19 > 0:46:23'to be dishonest about your true emotions and feelings.'
0:46:23 > 0:46:24I would value the fact my son told me
0:46:24 > 0:46:27before I found out through other channels.
0:46:27 > 0:46:31Yeah, if my friends told... God, that would have been awful.
0:46:31 > 0:46:34- So it's about honesty.- Mmm.
0:46:34 > 0:46:36So, off you go.
0:46:36 > 0:46:39- Handshake. Go for it, bro.- OK.
0:46:39 > 0:46:40See you later.
0:46:41 > 0:46:45'She's, like, the one person left that I'm so intimidated to tell.'
0:46:45 > 0:46:49I don't want her to be different with me in any way,
0:46:49 > 0:46:52so that's why it's a sort of big deal for me.
0:46:54 > 0:46:57'Right now, I just feel ready, like, just go for it,
0:46:57 > 0:47:00'because if I leave it for longer, I'm just not going to say anything.'
0:47:04 > 0:47:06It's Corrina's 18th birthday,
0:47:06 > 0:47:08and she's getting ready to meet up with Callum,
0:47:08 > 0:47:11although their relationship has been strained this week.
0:47:11 > 0:47:14He hasn't spoken to me all day. I've seen him - not to talk to -
0:47:14 > 0:47:17but he hasn't texted me or anything.
0:47:17 > 0:47:18Kind of upset, really.
0:47:18 > 0:47:20Keeps changing.
0:47:20 > 0:47:23Corrina's mate Becky is good friends with Callum, too.
0:47:23 > 0:47:25When you're upset, I'll go over to him
0:47:25 > 0:47:29and be like, "Oh, this is bothering Corrina, that's bothering Corrina."
0:47:29 > 0:47:33What's bringing me down is he's hardly showing me any affection,
0:47:33 > 0:47:34but when he does, I'm really happy.
0:47:34 > 0:47:38Despite their relationship troubles, Corrina has high hopes
0:47:38 > 0:47:40for her special night.
0:47:40 > 0:47:43I hope tonight is going to be romantic.
0:47:43 > 0:47:46I'll be there, my boyfriend will be there. That's what I want, really.
0:47:46 > 0:47:48I'm so excited!
0:47:48 > 0:47:50- Agh!- Agh!
0:47:58 > 0:48:02ALL: # Happy birthday to you! #
0:48:02 > 0:48:07CHEERING AND APPLAUSE
0:48:07 > 0:48:09'Last week, it's been a bit odd.
0:48:09 > 0:48:12'She were crying the other day, because I'm good mates'
0:48:12 > 0:48:16with this girl, and Corrina got a bit upset over it.
0:48:16 > 0:48:18I used to think Corrina was all right with it,
0:48:18 > 0:48:21but it seems to be getting to her, so...
0:48:22 > 0:48:24- Hello.- Hey!
0:48:26 > 0:48:27Becky!
0:48:27 > 0:48:30I need to have words with Becky about something.
0:48:30 > 0:48:34After Callum and Corrina's rocky week, it's down to Becky
0:48:34 > 0:48:38to mediate between the two and pass on some reassuring words.
0:48:38 > 0:48:42He'd choose you to take his virginity over anybody else.
0:48:42 > 0:48:43Really?
0:48:43 > 0:48:46Cos he was going to tonight.
0:48:46 > 0:48:49Yeah? Really, tonight?!
0:48:49 > 0:48:50Yeah.
0:48:50 > 0:48:53- Oh!- But he doesn't know if he should or not because...
0:48:53 > 0:48:55- Because of things.- Yeah.
0:48:55 > 0:49:01She's on her period, so I can't imagine anything actually happening.
0:49:01 > 0:49:03- I love you.- I love you too.
0:49:03 > 0:49:06You see, the thing is, cos I'm a virgin,
0:49:06 > 0:49:09I don't actually know what goes on!
0:49:09 > 0:49:12It's a bit embarrassing, admitting that, but I don't mind.
0:49:12 > 0:49:14But people have told me it's not a good...
0:49:14 > 0:49:16you know, it's not nice.
0:49:16 > 0:49:19There will be plenty of other times when I could, but...
0:49:19 > 0:49:24Cos I think that you two will be together for a hell of a long time.
0:49:24 > 0:49:28- Do you think?- Yeah, and he tells me how happy you make him.
0:49:28 > 0:49:30'Really?! Because I bought him Newkie Brown?'
0:49:30 > 0:49:33No, not just because of that!
0:49:33 > 0:49:35But just how happy you make him in general.
0:49:35 > 0:49:37CORRINA LAUGHS EXCITEDLY
0:49:43 > 0:49:48'If I were to lose my virginity, it would be her,
0:49:48 > 0:49:54'because she's the special one, the woman in my life who I do love.'
0:49:54 > 0:49:57She's the best specimen of the female species I've ever met.
0:50:07 > 0:50:11It's the morning after the night before in Kavos,
0:50:11 > 0:50:13and the lads are off to a water park,
0:50:13 > 0:50:16but some are struggling with the early start.
0:50:16 > 0:50:18How can you be so chirpy?!
0:50:19 > 0:50:22Rough, I think, is the word.
0:50:22 > 0:50:25It's way too early.
0:50:25 > 0:50:26Terrible.
0:50:27 > 0:50:29Not all the lads feel so jaded.
0:50:29 > 0:50:35Best night all week. Everything about it was just tremendous.
0:50:40 > 0:50:42For one of the group in particular,
0:50:42 > 0:50:45the holiday has exceeded expectations.
0:50:45 > 0:50:50'I found someone this week. She's one of the nicest girls I've met.'
0:50:50 > 0:50:53I've never been on a boys' holiday like this,
0:50:53 > 0:50:55so I didn't really know what to expect.
0:50:55 > 0:50:58'You see on the television, programmes, films,'
0:50:58 > 0:51:02they're all one-night stands, so that's what I was expecting.
0:51:02 > 0:51:08I didn't expect holiday romance, but I kind of like it, it's good.
0:51:08 > 0:51:13With one night left, the others are reflecting on their own performance.
0:51:13 > 0:51:16Is it a disappointment to you that you didn't have sex this week?
0:51:16 > 0:51:20Yes, it is a disappointment.
0:51:20 > 0:51:22'But anything can happen.
0:51:22 > 0:51:24'Fun all night, it will happen!'
0:51:24 > 0:51:27Last night of the holiday now, so it's...
0:51:28 > 0:51:32..a bit of a long trip home, you know, take it easy tonight!
0:51:40 > 0:51:43There's been so many highlights this week.
0:51:43 > 0:51:46There's been pole dancing, pole dancing with fire round us,
0:51:46 > 0:51:51there's been plenty of free alcohol, which is always a bonus.
0:51:52 > 0:51:56My age group should experience it when you're young.
0:51:56 > 0:51:59Just have fun, enjoy your teenage years, or your young adulthood.
0:51:59 > 0:52:02This has just opened my eyes so much now.
0:52:02 > 0:52:05I want to experience more.
0:52:06 > 0:52:07Where are you running off?
0:52:07 > 0:52:09- I'm off for a rendezvous.- With who?
0:52:09 > 0:52:14My baby lady. I'm off for a rendezvous with a baby lady.
0:52:14 > 0:52:18# And the love kick starts again
0:52:19 > 0:52:22# Starts again
0:52:22 > 0:52:26# And the love kick starts again... #
0:52:26 > 0:52:29This morning, Martin decided to tell his mum he is gay,
0:52:29 > 0:52:32and he was unsure what her reaction would be.
0:52:34 > 0:52:35Hello.
0:52:35 > 0:52:37Did you tell your mum?
0:52:37 > 0:52:38Yeah, I told her.
0:52:38 > 0:52:43She was out doing pilates, and I was waiting out.
0:52:43 > 0:52:44I was like, "Crapping hell!"
0:52:44 > 0:52:47And when she came back, I was like...
0:52:47 > 0:52:51- Um...you don't mind if we go somewhere private, do you?- Yeah.
0:52:51 > 0:52:54Martin has been building up the courage to come out to his mum
0:52:54 > 0:52:56for over five years.
0:52:56 > 0:52:59Well, when he first came in, I think it was a bit like,
0:52:59 > 0:53:02"I need to talk to you, Mum," and you think,
0:53:02 > 0:53:04"Oh, my God, what's he done?!"
0:53:04 > 0:53:07You know, I'm thinking, "He's done something wrong,
0:53:07 > 0:53:10"or he's in trouble with the police or something."
0:53:10 > 0:53:12So yeah, it wasn't as bad.
0:53:12 > 0:53:14I was like, "How do you know?
0:53:14 > 0:53:17"Is it just a phase, you know, you're going through?"
0:53:17 > 0:53:20Cos I suppose, really, I wanted him to say, "Yeah, it's a phase,
0:53:20 > 0:53:23"but really I'll be what you want in the end, and I'll get married
0:53:23 > 0:53:26"and have grandchildren and you'll be happy,"
0:53:26 > 0:53:29but, you know, you accept these things.
0:53:29 > 0:53:32- But, yeah, I did grill you a bit, didn't I?- You did.
0:53:32 > 0:53:35It was like half an hour or an hour of questions,
0:53:35 > 0:53:39and stuff about HIV and, "Have you kissed anyone before?
0:53:39 > 0:53:43"Have you slept with anyone before?" I'm like, "Ugh!"
0:53:43 > 0:53:45That's what mothers do!
0:53:45 > 0:53:49- We're just the same as we were really, aren't we?- Mmm.
0:53:49 > 0:53:50- No difference, is there?- Yeah.
0:53:50 > 0:53:52I still put up with you!
0:53:52 > 0:53:54SHE LAUGHS
0:53:56 > 0:54:00The plan now is to find a nice bloke,
0:54:00 > 0:54:04good-looking and lovely personality
0:54:04 > 0:54:09and all that, and just settle down or have a good relationship.
0:54:09 > 0:54:11That's, like, the mission at the moment.
0:54:11 > 0:54:14Hopefully, I can start a journey,
0:54:14 > 0:54:18and hopefully, it will be a good one, hopefully.
0:54:23 > 0:54:25Odele and Andy are fresh back from honeymoon
0:54:25 > 0:54:28and are adjusting to living together for the first time.
0:54:28 > 0:54:30- So far, so good.- Yeah.
0:54:30 > 0:54:33I'm getting used to the flat being girlified.
0:54:33 > 0:54:36- Goodbye to bachelor pad, I say.- Yeah.
0:54:36 > 0:54:41What's the point in having books, pebbles, whatever these are,
0:54:41 > 0:54:45too many beauty products, candles...?
0:54:45 > 0:54:47I don't see the point in having any of this.
0:54:47 > 0:54:50After two and a half years together,
0:54:50 > 0:54:54marriage and moving in is not the only rite of passage Odele and Andy have been through.
0:54:54 > 0:54:57- Yes, we have had sex for the first time.- Have we(?)
0:54:57 > 0:55:02Yes, we have, Andy! Glad you remember it so well(!)
0:55:02 > 0:55:06The best way I can say is it evolved, and it was fantastic at times
0:55:06 > 0:55:09and at times it was, perhaps, laughable!
0:55:09 > 0:55:11That's the best way I can put it!
0:55:11 > 0:55:14I thought it was going to feel really weird,
0:55:14 > 0:55:17and it was going to feel a bit odd, you know?
0:55:17 > 0:55:19But actually, it didn't feel like that at all.
0:55:19 > 0:55:21It just felt totally right.
0:55:21 > 0:55:24But it has been kind of quite funny,
0:55:24 > 0:55:27like getting embarrassed at chemists and stuff.
0:55:27 > 0:55:32I was thinking, "Where do they even sell parts of lubrication
0:55:32 > 0:55:35"and condoms... Where do they even sell it in Boots?"
0:55:35 > 0:55:38Cos I'd never bought it before, so I didn't have a clue!
0:55:38 > 0:55:40And then you feel naughty, going up to the counter!
0:55:40 > 0:55:42And that was all quite amusing.
0:55:42 > 0:55:47So, Andy, as you can guess, just left me to pay and ran off,
0:55:47 > 0:55:49so I had to do it all on my own!
0:55:51 > 0:55:54'I think it just reassured us that our decision to wait
0:55:54 > 0:55:57'and our decision to put it into married life
0:55:57 > 0:56:00'and a strong relationship was the right one.'
0:56:00 > 0:56:03- It was really fun.- Sex is good.
0:56:03 > 0:56:04It was really fun!
0:56:09 > 0:56:14Next time, we explore what happens when we start to play the field.
0:56:14 > 0:56:18I love exploring sex just as much as I love eating...and I love eating!
0:56:18 > 0:56:20From the pleasures...
0:56:20 > 0:56:25I've never had an orgasm quite like it. The Valhalla orgasm.
0:56:25 > 0:56:27..to the dangers...
0:56:27 > 0:56:30I was given, what I thought at the time, was a death sentence.
0:56:30 > 0:56:33..of promiscuous sex in our 20s.
0:56:43 > 0:56:46Subtitles by Red Bee Media Ltd
0:56:46 > 0:56:48E-mail subtitling@bbc.co.uk