Jeff's vagina waited in silent thought. Though it was excited to be a vagina for the next day, it wanted to wait and see if its time would be cut short, again.
It could only wait a few minutes before the alien feeling of its body became too distracting to ignore.
Jeff's vagina had already spent an hour as a vagina earlier, but that was not enough time to get used to being one. But now that the plan seemed to be able to proceed, it could start enjoying it time as one.
First thing's first, taking stock of itself. It had lips traveling the length of its body from top to bottom. Within these lips was a cavity. Being unfamilar with female anatomy, Jeff's vagina was uncertain whether this cavity had a name. All he knew was that its sense of self ended beyond the cavity. This cavity was also lined with a sense of taste. The flavor of a female sex. For lack of a better word, Jeff's vagina decided to call this cavity what it seemed like: its mouth.
Its lips extended above the mouth, though. An unusual feeling, only helping its body feel more alien, the "mouth" pretty much being in name only. Being at least a little familiar with female anatomy, though, Jeff's vagina knew that within its lips, it also now had a clitoris and urethra. It could definitely feel its clitoris; it was a lump at the top of its lips. The urethra, though, didn't stand out as much. Maybe because the urethra is the one part of Jeff's vagina that it had as a male.
Most prominently was Jeff's vagina's sense of self. Though it was part of Jeff's body, there was no sense of that body. Instead, it felt attached to a larger being, surrounded by legs that were not its own. (Though at this time, it was too dark to see those legs from within Jeff's pants.)
Last was the lack of motion. Jeff's vagina knew that it had some sort of muscles within its body. It had heard of vaginas squeezing dicks during sex. But it was unable to feel out those muscles. Maybe because those muscles were unfamiliar to it. Like a computer needing drivers to recognize new hardware. Jeff's vagina wondered, though, would it even be able to conciously control those muscles? Body parts were typically controlled by their owner, and Jeff's vagina was only an occupant. Then again, body parts aren't typically concious. Maybe it actually is possible for Jeff's vagina to control its muscles. For now, though, that was not a priority. Despite being completely motionless, Jeff's vagina felt pretty comfortable (unfamiliar form aside). Its muscles weren't cramped from disuse, its body wasn't falling asleep. Vaginas just don't have any motion to them. And that's what Jeff's vagina now was: a flap of skin surrounding a pair of holes. No longer a person, but a part of one. A female part.
Soon, Jeff got up off the computer seat, and started walking out of his room. Jeff's vagina could feel Jeff's legs shift around it, initially seated above before swaying below. The motion of walking tugged lightly at it, shifting its body this way and that. The tugging only amplified the alien feeling of its form.
This was it. Jeff's vagina's day as a vagina was now officially beginning, as Jeff was now bringing it outside the safety of Jeff's room. Excitement turned into nervousness. Does it really want to go through with this? Kind of. It's only for a day, right?
But the more Jeff's vagina thought about it, the more it sunk in what it really means to be an "it".