I saw this movie around 1998-2002, I don't remember much.
So the scene I remember is:
A boy and a girl goes into a toilet (maybe in school, not sure) to make love - it's not porn btw, just a teen movie if I remember well :D So they start to do it. Some other guys come into the toilet (I guess schoolmates). The boy have to cover the girl's mouth with his hand, because she's making too much noise and he's afraid they will get caught by the other guys.
And the ending scene of the movie: they're making love in a bed, in one of their parents house if I'm correct.
Hope you can help.
Thanks in forward,