♪ this is "nightline". tonight, sex and the single girl. naughty or nice. rules redefined in the era of snapshat, tinder and even turning to porn. >> porn as an instructional manual for sex is ridiculous. >> society's blurred lines. the shaming for those that go too far. plus, chelsea unplugged. back stage with chelsea handler. the unspoken comedian whose talk show, the risk she's taking. going for much more than just funny. and the winner is. the "dancing with the stars" season finale. >> this whole thing has been so

incredible because of this man. >> walk them right into the record books. but first, the "nightline" five. unlike fish oil, mega red is easily absorbed by your body. >> number one introducing the completely redesigned mercedes-benz c-coupe, >> number one with its athletic prowess and sleek new body. it doesn't just raise the bar... ...it completely crushes it.

the all-new c-class coupe. mercedes-benz. the best or nothing. ♪ good evening, thank you for joining us. tonight, changing roles in the age of social media, especially

for young women when it comes to sexiality. confusing messages and just how far is too far? >> here on sex and the single girl. ♪ >> i just have a nice little bow. because it's like kind of cute and kind of sexy at the same time. >> reporter: when 21-year-old anne preps for a night out, she's a little more naughty than nice. >> i probably try to bring more attention to my eyes. >> reporter: her sorority sisters call the look just slitty enough. but chasing the male gaz doesn't stop this college junior from calling herself a proud feminist. >> i think being a feminist and wanting to be objectified can go hand in hand. as a feminist, you should do whatever you want to do and if you want to be objectified, then

that's fine. >> reporter: and she's not alone. >> we tell girls that most important thing is to be hot. >> reporter: author peggy orenstein interviewed women. >> hot is commercialized, it's cumodified. self objectification is presented as a form of power and confidence but so often for young women that confidence comes off with their clothes sglerks a. >> reporter: she says that's because society is sending confusing messages to young girls. >> believing you can do something is the first necessary to do doing it. >> reporter: and america may elect its first female president. >> do you think you'll be painted as much as if you were a man? male? >> reporter: and we're being bombarded by so many oh, so sexy

images and on social media, it seems more skin girls show, the more "likes" they get. >> it tells them over and over again that how their bodies look is more important than how they feel to themselves. >> reporter: to complicate things further, if a girl comes across too sexy, they're punished for it, like when kim kardashian recently took it all off for a naked selfie. it sparked a social media back lash over what some called slut shaming. >> if any sexy guy posted a nude picture with a black strip over his private areas, everybody'd be like dam, oh, he's a dad too? and rits it's a double standard >> reporter: ex-stripper and famous for her sharp tongue and relationship with kanye west.

>> he has slut shamed me on several occasions and that's why i don't care for him. >> i take 30 showers before i got with kim. >> very immature and corny. i want an apology for that. >> reporter: she said the experience inspired her to create her own slut walk. a public demonstration against sexist double standards and victim shaming. >> you guys are amazing. >> reporter: but experts like o ornstein say it will take much more time where they're groomed and not just in appearance but in performance. >> they're more likely to measure their satisfaction by their partner's pleasure. he's satisfied, so i'm satisfied. >> reporter: something our self-proclaimed feminist says it

happens too often. >> i don't know one that says it's about me and making myself finish and getting pleasure. >> what if every time you were with a guy he told you to go get him a glass of water from the kitchen and he never got you a glass of water? the girls would laugh and say if you put it that way. maybe you should think about why you're less insulted about performing a sex act over and over than getting water from the kitchen. >> reporter: she says the double standard stems in part by the country's out of touch sex public education. just 24 states mandate sex education in public schools and only 13 mandate that they be medically accurate. something writer tina fey poked fun at in the movie "mean girls." >> don't have sex, because you will get pregnant and die. >> reporter: unbreakable kimmy

schmidt. >> one of us needs to go back for a banana. i blame my mom for this. she never taught me about the birds and the bees. >> the sex education i got was awful. there was never actually any courses on what it was and what to expect. >> reporter: she says parenwith parents that didn't speak to her, she went to the internet and found the answers in porn. >> i turned to porn as comfort to know that my body was okay and normal. >> to look at regular porn as an instructional manual for sex sad is ridiculous. >> she's a former soft core porn star. and the host of a weekly sex show on vivid radio. >> if you want to teach your kid how to drive a car, do you teach them by watching an action

movie? to expect to learn about sex by watching a porn is unrealistic because it is a made up fantasy world. >> girls would ask me, my boyfriend wants to know why i don't make the noises like the porn stars when we have sex and i would say, it's a movie. >> i've had guys say that to me, that i'm not expressive or vocal enough. >> reporter: she says it's not necessarily bad bullet it's important to remember who the intenlded audience is. men. >> i didn't know that a woman can finish from sex until a friend told me and i'm 21. >> have institutions like sex ed failed us? >> kids should learn about good sex in sex ed, yes. they really should. because if they don't learn basic ideas, the culture's going to teach them. >> reporter: in addition, she says parents and educators need

to address sex clearly and honestly. >> talk about sexualau t autono so you're able to communicate your needs and desires. >> reporter: she loves the dutch whose college students have fewer pregnancies, diseases and report less sexual regret than their american counter parts. >> the dutch talk to their kids from a very early age, the parents, the teachers, the doctors, very clearly. but americans tended to stress risk and disease. and dutch parents talked about balancing responsibility and joy. >> reporter: but she says the most important thing is that young women today feel empowered to put themselves first and anne says she's doing just that. >> i am having the best time of my life and i want to go out and experience as many people as possible and just enjoy my time

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nothing should get in the way of the things you love. ♪ get america's fastest internet. only from xfinity. ♪ love her or hate her, chelsea handler has something to say and fans say her comedy is here to say. abc's nick watt tonight.

>> reporter: we are back stage with the out spoken chelsea handler. what's sort of vibe are you going for? >> i wanted it to feel like my house. cool, and not so put on. >> reporter: on the set of her brand new netflix show. she has made career for being unapologetic. >> how was prison? >> have you ever tried to get back with your ex? >> yeah, but that fat -- got married to nick canon. >> reporter: sometimes naked. >> when the mood strikes me, i can't be stopped. i'm very impulsive. >> reporter: and now trying to reinvent herself. >> i'm oprah. >> i thought she was -- >> you can say black. it's fine. >> reporter: the talk show. >> did you miss me?

i missed you. it's not your traditional talk show in that it's not the same format every night. it's different things. >> reporte do you have my size? >> reporter: trips to japan. her dog, chunk on stage at all times. >> that's chunk. >> reporter: how come chunk did not bark? >> he doesn't bark. he's trained. i had his lungs removed. no, he's just a really great dog. >> reporter: it airs in 190 countries on netflix with subtitles. >> and they have all these linguists and translators and if they translate it literally, it could make zero sense. >> reporter: she is asking and attempting to answer questions that she does not know the answer to. here she is with the secretary

of education. >> name all seven of the continents. >> okay. let's start over on the other side. australia, asia, australia. did i say australia? >> yeah. >> so, whatever one i'm missing, say it. >> africa. >> oh, god. not africa. >> reporter: handler, of course, made her name on e's "chelsea lately." >> i think a lot of my fans that came from my own show are probably like we want more celebrity gossip but i am not feeling that anymore. >> reporter: she's trying to make it feel different. >> i think you show great promise, chelsea. >> and you want to have those kind of flashy, high profile people because people are interested in them. i had a great interview with gwen stefani because we have like 12 minutes. in talk show world, it's a lot

of time. >> i heard you want to hit a big note. >> reporter: christina aguilera's on the show giving chelsea a singing lesson. >> i have my work cut out for me. >> reporter: her thumbs are very odd. >> are they? >> reporter: hers bends -- because mine don't bend back at all. >> you're is freaking me out. at least you can hitchhike. i bet you're a big hitchhiker. >> reporter: i meet a lot of people, not mentioning names, that i like on screen and not in real life. chelsea handler is the reverse. i never really got her on tv. having met her, now i do. some of the reviews have not been great. >> they either love me or hate me, that's been my career. you have to ramp up, and get

your sea legs and get the show where you want it to be. i want it to be a place where you good get information in a fun way. ask the questions that people are embarrassed to ask. >> reporter: netflix is signed up for 90 show as year and they drop just after midnight, wednesdays, thursdays, fridays. and so if you do well, you may change the way netflix opraerat? >> yeah. >> reporter: no commitment. it's like getting married. >> it's like having a baby. i want to demonstrate how easy it is to get netflix. so, we need a roku. >> you can voice control the roku. >> i don't want to be in my house by myself saying "chelsea, chelsea." >> i do. >> you say your own name?

>> i say chelsea. >> well, that's okay. >> i say it for different reasons. >> that involves batteries. >> reporter: and presto. >> there i am. chelsea, chelsea. that was easy, even for me. can you tell me what your thoughts on trump are. >> reporter: here she is with president obama's former speech writer. >> he's not going to win. >> he's not going to win, everybody. >> reporter: and a group of older voters in swing state, florida. >> anyone in this room planning on voting for donald trump? really. why don't you explain yourself. i'm allowed to talk about how stupid somebody is and i don't have to care about getting them on my show or certainly what he thinks about me. >> reporter: i don't think you ever have. >> no, i haven't. >> reporter: i think that's part of your appeal. >> maybe. yeah. >> reporter: did you ever think you'd get a platform where people would listen to what you have to say and think and take

that seriously? >> yeah, i did. i have a lot of confidence. my father gave me a lot of confiden confidence. he thought i was special. he did a real number on me. of course, it bothers you kwhen people don't like me. with the show laufnching, i pay more attention than i would normally. >> reporter: so, she's funny but now she wants to be more than just funny. >> in wanting to grow up a little bit. i think it's time to grow up a little bit, not too much. >> reporter: what do you mean by that? >> to be responsible for the message i put out there. if you're going to be an entertainer, you might as well do something different and responsible. i'm not somebody who went to journalism school but i'm here. >> reporter: i take it back.

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♪ and finally tonight, gliding one last time on america's dance floor, the surprise and grace of tonight's dancing with the stars. it was a close match between the two finalists. featuring deaf model and abc's own gingergingersey. rumors flew that ginger might not be able to glide on the final round. she was known for her eclektic style. and marco swayed to the beat, defying