Gotta pee!

Original Author: lacedemonian

A familiar alarm rings in Kim's head, signaling her to use the toilet.

She finishes cleaning up and begins walking. Inside her urethra you only hear footsteps, until they stop. Realizing you have more important matters, you attempt to shimmy your way through the dark, soft pipe. Eventually the pipe starts to curve downwards. Her penis is now totally flaccid and you are well on your way to the exit. With a sense of excitement to be free again you start moving faster and faster through the tunnel as the walls start to get brighter and brighter. Just before you can touch the light at the end of the tunnel, and hope there's something soft to land on, you are caught off guard by a sudden movement.

Is she walking? No, this is more of a vibration.

A sound slowly becomes more audible, that of rushing water.

She's in the shower then?

Except something isn't right. This sound isn't muffled by her skin, it's echoing. But that would mean the sound is coming from inside her ure...

She's urinating. Oh no oh no oh no---

Think fast! the exit is dead ahead! But if you fall straight down your landing point will obviously be the toilet bowl, which won't be much of an escape.

The rushing sound is getting louder, and the urethra is expanding to accommodate the incoming flow...