. >> i don't feel kate r: heather mcdonald was chelsea handler's sidekick on "chelsea lately." and fancies herself something of a reality show expert. >> i'm o shows. if there was a graduate program at usc that i could get a master's degree in reality show, like write a paper onabsolutely could. >> hi, sexy! >> don't i seem professional? jenner she's had a cameo on the reality shows "keep is ing up with the kardashians." >> i think she's going to regret not buyingnd of the episode it'ses are like, well, you know. kris jenner will be like, you know. in the end i knew that even though my girls fight, going to be sisters. you know, there's always a little bit of a button to like their fighting. >> like "full house" kind of. >> a little, nd "full house" have a lot in common. >> reporter: she has high hopes for mariah's show. >> she can be her fabulous self. we can see her trotting along counting her diamonds. happy birthday >> reporter:e candid moments, the unguarded star. at work -- will you're trying to play like you're so grown >> reporter: and at play.ot willing to lit her hair

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heather, you know these teens don't know it providing fuel for illegal industry, underground network of child molesters and perverts. the photos don't die and kids forever pay the price. l.a. county sheriff jim mcdonaldan open letter said they investigated 500 cases of boys and girls as young as eight, posting nude photos of themselves. this year alone, more than a case a day. all too often these images end up on the internet or in the hands of child predators some who actually make contact with these children with the specific intent of luring them into a relationship, extorting them for additional photos and videos or in some cases even money. >> from the time i was in high school to now, things are changing. like the times are changing. it is getting worse and worse. >> i think it is good parents being aware of it. a lot of parents don't assume their kids are doing it. reporter: why is it happening? no surprise celebrities are doing it. role models like kardashian, lindsay lohan, justin bieber, dozens of hollywood a-listers begging for attention, post naked photos of themselves, telling parents contrary to what they think, the photos do not disappear. >> i have a 15-year-old daughter, that is terr