Hikaru and Matsuri were dumbfounded at their situation, their heads reeling from what have become of them. It was then that a familiar feeling reminded them of their situation. They had to pee. A familiar pressure on their bladder, combined with an unfamiliar one further up their shared body. Matsuri sprinted off to the bathroom at full speed, causing her brother turned sister/cock to flail about wildly, along with her new breasts. Her tiny form was flung about like a ragdoll, smacking against her sister’s things.
At last they reached the bathroom, and Matsuri immediately bent over the toilet as if to vomit, but what came out was far worse. A steam of piss poured from her urethra, with a good bit of it ending up on her tongue, which was situated towards the bottom of her new mouth, between her folds. She winced, being able to smell it despite her nose being replaced with a clit.
As the flow stopped, she quickly wiped before rushing over the sink to wash her new mouth out with water. Still feeling as if her lower bladder was about to burst, she rushed back over to the toilet, grasping the torso of the girl that had been her brother, aiming her mouth before releasing, a stream of urine forcing the former boy’s lips apart, her eyes watering at the awful taste and smell. The steam became a trickle, and Hikaru shook off the excess, before giving her brother a small cup of mouthwash, which she happily accepted, though it was now as big as a large bucket to her, and she sipped from it, swishing the awful taste from her mouth. Hikaru blushed as she felt the alchohol swished around inside her pee hole, before she felt her penis spit, wiping her mouth with her hand.
The two stared at their shared altered body with disgust and fear, unsure of what to do next. How had this even happened?