You don't have much time to thing about it as whatever is in your stomach starts to gurgle. Clutching your massively distended belly you feel the force of whatever is inside you beginning to change something. The gurgle begins to deepen as you groan in discomfort.
Looking down at your dick you feel a large amount of pressure on it. Your eyes go wide as something starts to leak out of your dick, something brown and shiny. You wonder if it's what entered your ass as a sudden jolt of pain forces you to sit down on the floor, legs spread as the brown stuff leaks out into a small puddle your dick lays in before it stops leaking.
Your massive belly blocks your view as the puddle starts to move, crawling onto your dick and squishing it, you moan in pleasure as whatever this stuff is, it's stimulating your dick as it slowly pushes back into your body. Within seconds your dick is gone, and your crotch is covered by the brown stuff and smooth and shiny. Just then anouther jolt of pleasure hit you on your crotch, eliciting anouther moan as a cleft begins to form between your legs.
Your new vagina quivers and begins to leak the brown stuff, which you assume is latex at a much faster rate and in much larger quantity then your dick. And within seconds you at now sitting in a large puddle of brown latex. Groaning you attempt to get up and step in the latex, the brown stuff getting on the bottom of your feet as you sit in your bathtub and close the drain for some reason, sighing in relief as latex continues to pour out of your vagina and begin to fill the bathtub.