Pregnant in gym (Patreon)

Just another variant of this cap)

Max was at the gym, having just finished your workout, he head back into the locker room, take a quick shower then dry off.
He open his locker with his clothes and take his clothes out and set them on the bench, and notice something odd.
The back corner or the locker seems to be loose, like its been removed recently, he push against it and feel it come loose slightly.
Curious, he pry it off and see something odd behind it.
Behind the back piece there looks like theres another locker room. But that doesn't make sense, This Wall, is against the outside of the building, it couldn't physically be there, besides, this is the only Locker room, The Women's is behind you.
He try and stick his head through but can't quite get far enough in, so against he better judgement he slowly climb into the locker, its pretty tight, bu he manage to fit, he stick his head out the other end and see an empty locker room, that looks identical to the one, he is in, except its a mirror image.
He climb the rest of the way through and stand up, straightening your clothes, but somethings odd, his white tank top changed into a light green shirt, not its just hugging his tits and his new big pregnant belly.
He awkwardly with his big belly run to the mirror and see himself, a girl, with brunette hair in a ponytail, in a light green shirt and yoga pants.
Alarmed and confused, he do the only logical thing, climb back through he locker.
But .... There is one problem, his new stomach does not crawl into this small locker!
"Damn it, it's just a dream, it can't be!"
Meanwhile, he presses and feels severe pain from this in his stomach
...
Miranda, just finished class and went into the locker room. She did not expect to see this in her life. Her pregnant friend tried to do the impossible, she tried to climb into a small locker and at the same time made strange sounds
- Mary, what are you doing !? You know, you can’t go to the gym until you give birth, this is crazy
He went to a friend
- No, no, I have to climb there