Darn if i know, but it most likely was some Hollywood romance/melodrama/psychological drama/whatever. I faintly recall parents turning to the other channel and i didn't knew why, since there was no violence in the movie. They were nice enough to explain what 'sex' is when i asked, though.
The silly thing is i discovered the whole word 'sex' when browsing encyclopedia, and thought it has something to do with chicken, don't know why. They had no choice but tell me to stop asking about sex and chickens and simply said it's a 'medical term for making children' or something.