Chapter 9
by
WilltheBoatmaster
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Swimming Lessons: Time to Come!
Walter-son cried out sharply as Mike’s final, brutal thrust pushed him over the edge. The orgasm hit like a lightning bolt, it was so intense spots burst in their visions. Their pussy clenched hard, thighs shaking, while the massive, over-swollen ass cheeks quivered and rippled around Mike’s cock. A hot rush of endorphins and hormones flooded Walter-son's body.
The effect was immediate.
With a wet, obscene schlorp, the relentless expansion finally reversed. The enormous, pillow-soft globes began to rapidly deflate, shrinking back toward Alison’s original athletic bubble shape. Inch by inch, the heavy buns subsided, the flesh tightening and firming under Mike’s still-buried cock. Walter-son moaned loudly, riding the shrinking sensation as it mixed with the aftershocks of climax.
“Fuck— it’s working…” they gasped in a breathy voice.
Mike groaned, pumping the last of his load deep inside before pulling out. Thick strands of cum leaked from the now much smaller (but still flushed and sensitive) hole.
Just in time to recover.
The voices in the hallway were getting dangerously close. More laughing, chattering, and the sound of feet on marble.
“Tim, shower room, now!” Walter-son hissed, yanking the tattered remains of the cut-up swimsuit off completely and tossing it in the trash. Their ass was still a bit plump and round; they were maybe a little bigger than Alison’s normal size, but close enough to pass.
Tim, panicking, darted toward one of the shower stalls. He slipped into the last stall and pulled the curtain shut just as the main locker room door burst open.
Walter-son grabbed Mike by the shirt and dragged him into the large communal shower area. The tiles were still damp from earlier use. (S)he pushed Mike down onto the tiled bench seat in the corner.
“On your back. Now,” Walter-son ordered with the firmness of a dad speaking to their son.
Mike grinned breathlessly, still dazed from his orgasm, and obeyed. Walter-son wasted no time. (S)he spun around, planted his feet on either side of Mike’s head, and dropped.
Thump.
(S)he sat their still-sensitive, cum-smeared ass directly onto Mike’s face, smothering him completely. The soft, warm cheeks spread over Mike’s nose and mouth, sealing him in. Mike’s muffled groan vibrated pleasantly against Walter-son’s hole.
“Shhh. Not a sound,” Walter-son whispered, grinding back slightly to get a better seal. Their thighs flexed, trapping Mike’s head in warm, plush captivity.
Seconds later, several girls from the swim team walked into the shower area, towels slung over their shoulders, still in their wet suits. They were chatting loudly about practice times and the upcoming meet.
Walter-son kept their back straight, pretending to rinse off under one of the shower heads, letting the water cascade over their naked body. (S)he slowly rolled their hips in tiny circles, smothering Mike even more thoroughly. Mike’s hands came up instinctively, gripping the backs of Walter-son’s thighs, but he didn’t dare push or make noise.
One of the girls glanced over. “Hey Alison, you okay? You look kinda… flushed.”
Walter-son flashed their most innocent smile, even as (s)he clenched their ass around Mike’s face. “Yeah, just really went hard in practice today. Coach had me doing extra sets.”
Another girl laughed. “Girl, your ass looked crazy out there. Did you do something different with your training?”
Walter-son bit their lip, feeling Mike’s tongue involuntarily flick against their inner asscheek as the pressure crushed him. “Just… trying some new things,” (s)he replied sweetly, voice slightly strained. “Gotta keep improving, right?”
The girls kept chatting and showering, completely unaware that “Alison” was currently facesitting a guy while cum dripped down her thighs.
Walter-son looked down between their legs. Mike’s eyes were wide, ****, and utterly trapped under the soft weight of the transformed man’s ass. (S)he gave one more slow, deliberate grind, pressing their full weight down.
Good boy, Walter-son mouthed silently.
The risk of getting caught, the lingering sensitivity from the growth glitch, and the sheer humiliation of the situation had Walter-son’s body buzzing with dangerous excitement.
This was far from over.
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Becoming Alison
This is the story of 51-year old Walter, who somehow became 18-year old Alison!
This is the story of 51-year old Walter, who somehow became 18-year old Alison!
Updated on Jun 12, 2026
by Snorlax
Created on Mar 7, 2024
by Fotzenglotz
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