How are today's teenagers pressured to be sexually active?

I think teenagers today are pressured to be sexually active in many ways. The media like TV shows, movies, and Music Videos have a huge influence on today's youth. Media such as these have been promoting different types of sexuality in many ways, such as sex scenes in movies, the way celebrities in music videos dress, etc.

TV shows such as Jersey Shore, Degrassi (the new one on Much TV) and others promote sexaual relationships at very young ages, and they make it seem "normal". They make it seem like everyone is doing it and like t's a bad thing, or you're not "cool" if you aren't, too.