Your tazer is on the clothes you abandoned outside, so up isn't an option, so you bite the bullet and roll yourself toward the "exit" and with what strength you can muster in the cramped quarters you push your way down the shute that will save you.

"You aren't getting out that easy" the nurse growls and clamps her abdominal muscles down forcing you to a halt. She must have an Ab machine at home, but you decide she can't clamp down forever and her clench lightens up and you slide a little farther down.

"You might get out of the stomach, but I pride my self on my retention."

You growl at this and keep up the steady pressure and are soon enough pressing at her anus, which is just fine, as her bile starts to work at your sensitive areas.