After hearing Carmen say that she was getting it all out, you held on to the nearest wrinkle of her anus for dear life. Carmen must have laid down on her stomach because you felt the gravity shift, making it feel like you were on the ground instead of attached to a wall.

Ppppppprrrrrrrrrrrrrrrrrrrrrrrrrrrrrrtt!

The loud fart released with a terrible smell and a burst of wind. As you shrank even more you lost your grip just as the fart ended, you fell backwards as the sphincter closed, bouncing you towards the center. You landed just on the edge of the center of her butthole. You were now half the size of the largest wrinkles of her anus, you quickly ran away from the center and squeezed your body between two of the wrinkles just as you felt a small tremor.

Pppppppppppppppppppppprrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrttt!

Thanks to the friction of your new position the blast of ass gas didn't move you but that didn't stop the smell or the shrinking. You lost a quarter of your height, and you had to move towards the center so that the wrinkles could hold your body in place again.

BrappppppppppppppppppppppppppppppfffffffffbbBBBBBBBBrrrrrrrrrrrrrrrrrrrrraaa aaaaaaaaaaaaaaaaaaapppppppppttttt!

Carmen just let loose a 5 second long blast of ass gas that quickly shrank you down until the wrinkles you were in between were as tall as a house. They were too far apart from each other to keep you from being pulled deeper into her sphincter, you didn't know what to do. Her butthole was town sized and seemed completely inescapable.