They drive a few towns over. A small, beat up movie theater no one ever goes to. She loves you, and doesn't want to hurt you; but as soon as he grabs her hair, she knows to get her mouth ready. She just can't help it.
Your sister and her boyfriend came home unexpectedly and caught you perusing her panty drawer. He beat the shit out of you, and watching got her so turned on she gave it up to him right then and there. "Serves you right, you perv!"