You nod your head and she invites you to lie down. She moves around the cushion, standing, while you lie, and walks forward. You look at her big butt, how it ripples as she walks. You are tantalized by its size and shape. The woman notices you watching her and smiles. "Don't be shy, beautiful. Touch it. Jiggle it. Kiss it." You do all of this, enjoying the firmness and girth of her ass. You feel strangely proud to know that a little bit of you went to building it.
Slowly, the woman continues walking around until her penis is lined up with your vagina. Something feels wrong. Something feels terrible. You are cold and sweaty and worried. But you remember how good it felt when you experienced your female orgasm, and you want it again. You want to know if it's different when there is a penis involved. You are curious about so many things.
The woman touches your thigh with her erect penis, teasing around, getting closer and closer. You lift your head to watch. From your view, the penis seems too large to go into your vagina, but after a moment of teasing, the woman moves in. Your vagina feels like it is tasting chocolate for the first time and cannot say no. The engorged penis burrows in and your vagina swallows it whole. It opens and opens, until the whole plump mound looks stretched taut. The penis pushes and pushes and you didn't realize how deep your vaginal canal went into your body. You can feel the penis deep inside. The thrusting awakens something in you and you keep time with it, moving in your prone position until you no longer want to be lying down. You want to be closer, to feel the penis moving up into you instead of horizontal.
You try to sit up. Again, the weight of your breasts throws you off, but you push yourself up. The woman adjusts to your motion, still thrusting. She puts her arms around your torso. You put your arms around her hips. Your hands finds her butt and you hold onto it. The thrusting continues and your vagina is about to sing. You are excited for this. You've waited for this. You feel the woman's butt grow in your hands.
Something worries you. Why is her butt growing? Last time it grew, it was because she was stealing your....
The climax arrives before you can finish that thought. You scream out loud, with no shame of being heard. The pleasure washes over you. You never felt anything like this as a man, and just feeling this twice in your life makes any transformation worth it. Your whole body is a fire and your vagina is its fuel. It's even better than the last time.