It’s an 80’s horror cult classic! Student Bodies (1981) follows a killer named the Breather, who hunts down high school students who are having sex and stalks them by prank calling them and talking through a rubber chicken. When they don’t heed his warnings and continue to do the nasty, he kills them.
For a movie that is about a killer murdering people who have sex, there is not a whole lot of skin. Kristen Riter is spied on by the Breather when she is in the locker room changing clothes. She gets her shirt off and shows us her scoops in a bra, but that is where it ends because she hears him breathing and runs out of there shirtless.