Your step sis goes in your room while you’re not home because she noticed that she’s missing some of her favorite panties and she’s pretty sure why. She finds the collection of her underwear that you’ve been hiding and cumming into. Once you get home she texts you to come to her room, which she never does so you get kind of excited. When you see the panties in her hand your stomach drops. Oh no she knows. She’s really angry and yelling at you calling you a pervert, but her titties are out in she’s in this really sexy lingerie all you can pay attention to is her body and your dick starts getting hard. She’s disgusted by you and shoves a pair of the crusty panties in your mouth while instructing you to jerk it to her while she shows off her body and insults you. You’re enjoying it so much but you’re so humiliated at the same time. She tells you to cum in your hand and lick it up like a gross little puppy or she’s going to tell all your family and friends how obsessed with your step sis you are.