Clockwork Mice (1995)

Children use crude slang to describe a pregnant unmarried teacher on maternity leave.

Principal suggests in a crude way to the new teacher if he's lucky he'll be able to have sex with a certain female teacher.

Woman teacher happens by school men's locker room door to stop and stare at a nude showering man. Full rear nudity. She mentions this to a fellow female teacher who advises her to sleep with him.

Female teacher intercepts male teacher in art room just as he's changing into running clothes. When she comes in, he's wearing just a jock strap. Nudity includes full rear and front view.