I need help remembering the name of this movie, It is a bunch of kids graduating from collage and there is 2 surfer guys one of them is named c.j. and one of the girls sleeps with him and then one of the girls gets arested for prostitution. And her weird little fiancé. Gets mad at her. And she almost misses graduation?

Help me please

I believe the name of the movie you are referring to is called, "The Allnighter (1987)
The Allnighter (1987) (http://www.imdb.com/title/tt0092537/)

Hope this helps you.