Step-Mommy comes into your room, you are sat with your Step-brother, and Step-mommy wants to catch up on what you have been learning today. You tell her you've been learning about the female body, and want Step-mommy to show you hers. She is more than happy to, and starts to strip, starting with her tits. She exposes herself to both you and your Step-brother, but only he gets to squeeze and suck them. Next is Step-mommy's big peachy ass. The only boy who can touch is your Step-brother. Finally it's Step-mommy's shaven pretty pussy, but guess who's not allowed to finger her, or slide his cock inside her. That's right. You can only watch whilst Step-mommy denies and cucks you for your Step-brother, you can be sad, jealous and cry all you want. He makes Step-mommy horny, not you.