In Marge's ass
From Create Your Own Story
Your cock explodes fire stream upon stream of hot semen into her ass, your dick just doesn't stop and you pull out still cumming as cum leaks out of her full ass. You fire the rest of your cum onto her round ass cheeks. Once you've finished you lie beside her exhausted. As you both lay there Lisa burst into the room.
"Mom? Oh my..." She says entering, seeing both you and your mother naked, with your dick semi-erect and cum on its top and buckets of cum coming out of your mother's ass and covering her ass cheeks.
"Oh Lisa! I can explain..." Your mother attempts to say but can't think of any excuse for why you just buttfucked her.
"Oh no mom, it's okay. I've wanted to fuck Bart for a while now, maybe you can give me some tips." As she says this she drops her dress in one action to reveal her perky C cup tits and toned ass. She quickly removes her bra and panties and climbs onto the bed. Merge gets into a position to watch the two of you. What does she tell Lisa to do first: