Flee!

Shying away from the threat your penis presents, you dont even see it as it crawls along the wall behind you.

Without warning, it yanks your feet from under you and pulls you towards itself, quickly sliding up your pant leg. You howl in horror as the slimy tip of your cock leaves a trail of precum up the back of your leg as it tries to wiggle its way up to your ass.

When you feel the tip of your cock slide between your ass cheeks, you grab your penis through your pants, trying desperately to keep it from ascending any further, but you're already too late. When you feel the tip of your cock brush your anus, you loose your grip, your cock taking the opportunity to lunge forward, burying itself into your ass up to the balls in a single agonizing thrust.

You scramble to pull your pants free, **** for any way to get at your penis and pull it from your ass.

You moan and stagger as your balls repeatedly slap your ass with every lunge, knocking you face first onto the bathroom floor.

You finally manage to grab hold of your shaft as it slides part way out of your ass, holding on for dear life as you struggle to pull your entire length from your violated anus.

Finally pulling your cock free of your ass, and throwing it roughly across the room to put some distance between yourself and the horrifying monstrosity your penis has become.