Trans darling Penny Peacock recently wants to be just like her new step sister Roxxie. One day while snooping through Roxxie's dungeon, Penny decides it would be fun to be Roxxie for a day - trying out all her toys and even fucking her boyfriend. When Roxxie discovers the little slut trying on her clothes, she's had enough, and grabs Penny by the collar for some over-the -knee spanking until she admits what she's done. Sensing an opportunity, Roxxie thinks it would be a great idea to show Penny what being Roxxie Moth really means, by brutally destroying her with impact play, CBT, predicament bondage and rough anal sex! First, Roxxie straps Penny into a spanking bench to mark up her ass with a wooden paddle, floggers and a riding crop, before flogging and caning her tender balls. Next, Roxxie ties Penny up with nipple clamps and a vibrator wand on her cock, face fucking the greedy slut into submission. Once Penny has had enough, Roxxie bends her over to fuck her in all kinds of fun positions before cumming all over her new step sister. Will Penny finally learn her place beneath her step sistress?