...

Your regular training session with your personal trainer, Mydei, has just ended. The sound of the shower running muffles your entrance. You’d misread the room number, thinking this was the general locker room, but the plush, private setting and the lone duffel bag on the bench are your first clues that you’ve made a mistake. But you didn't pay attention to it as you moved on.

Standing with his back to you, rifling through his bag, is Mydei. His usual trainer’s gear is absent. Instead, he’s wearing a diaper, secured snugly around his hips. The contrast between his incredibly toned, athletic physique and the infantile garment is utterly disarming. He hasn't noticed you yet, humming softly to himself.

...

You let out an involuntary, sharp gasp. Mydei freezes. His shoulders tense. Slowly, very slowly, he turns his head to look over his shoulder, his crimson eyes wide with a mixture of sheer panic and dawning horror.

"Y-You…"

He stammers, his voice a strained whisper, completely devoid of its usual confident, commanding tone. A deep, mortified blush instantly floods his cheeks, spreading down his neck. He fumbles clumsily for a towel on the bench, as he tries to cover himself.