You try to struggle, though it's of little use. You can't see a thing inside of the marsupial's colon, except for a small, miniscule bit of light, penetrating the murky depths, her pucker open just the slightest bit. It even allows the slightest bit of fresh air in, though it only serves to tease you, the sweet scent almost completely overwhelmed by noxious fumes, the air hot, humid, and stale. It's nearly impossible to move this time as well, the warm walls, though soft and slick, are incredibly tight, thumping as they clench down tightly on your body, keeping you pinned. You can't give up, you have no intention of staying here. You keep stuggling, not accomplishing too much at first besides making the fleshy walls squeeze down even tighter. Soon enough a pattern starts to emerge, however, feeling the muscles of you captor contract and relax... As they loosen a little you manage to finally inch forward a little! You feel a sudden surge of hope, trying harder, though it's rather slow going, not wanting to try to alert her, and it's rather difficult to climb on that flesh, squishing and shifting under your touch... Eventually you finally manage to reach that sphincter, however, trying to push yourself out of the beast...