Marc Wallice

Late 80s/early 90s scene. I'm pretty sure the girl was brunette with medium length hair. If it wasn't in the back of a station wagon it was a pickup truck maybe, with the back with one of those covers on it? It was a night scene. At first they're both sitting on the tailgate or whatever talking and she says she's nervous about having sex with him because she doesn't want to get pregnant. He suggests that when they have sex they could switch to anal after a little while. She's shocked at first at the suggestion and he says something like "everybody does it". So they do it and when they're done she says something like "can we do that again?" and if I remember right he says "your wish is my command" or something like that. Thanks