You’re ‘little prank’ has some unforeseen consequences. You have a nasty little prank of rubbing your bare dick on your sister, pulling her down on it when she’s walking past. It’s just a dumb guy prank though, you don’t really mean anything by it. Too bad your sister has had enough, you get on final warning before she takes matters into her own hands. But there’s no way she’d go too far with it is there? Not like all of this time you’ve been working her up… right?