"Mmmfmfmf?!" you say, half in shock.
It feels so natural to cap of a bicep flex with your thumb in your mouth, yet the instinct still surprises you.
You check the box for any other clues, but of course find none. The only other thing fell out when you grabbed the diaper–a large pacifier, shaped like a child's but several inches across, clearly made to fit a man's mouth. You hold it up with a look of half disgust, half confusion, but something ticks in your brain and you think:
At least I can flex and explore without immediately going for my thumb.
You pop in the pacifier and check out your new bod. You've grown past 6' and are well into the 200's you estimate. Your body fat is lower, but you're not insanly lean; in fact, you resemble someone who just stepped onto an Olympic or CrossFit podium, save for the massive diaper you're currently sporting. And speaking of massive, your bulge looks comical.
Sticking out at nearly a foot, it looks like you shoved a melon in your padding–if melons were shaped to be anatomically correct. It looks like the diaper company made this specifically for well-hung babies. A niche market, for sure.
Flexing your huge, solid, tree-trunk quads and you triceps in the mirror you briefly think:
It'd be a shame to cover this up.
But it's several blocks to the park and you don't want to give anyone a heart attack. So, you head over to the closet and after rummaging, put on a baby blue shirt that is basically now a muscle tee, exposing the bottom two of your newly visible abs. Yeah, you look good. You're the sexiest baby.
You look at the clock. You were going to crawl to the park, but you're not going to make it. Walking is out, too. Though you grin thinking what a shock it'd be to have a 250 adult baby strutting down the block. Might have to save that for after.
So you grab your oversized leather jacket–now fits like a glove–shades, and your actual leather gloves, and head out to your bike. You don't even bother with pants, none of your old ones are gonna fit between your new legs, thick diaper, and obscene bulge.
Pulling into the park, you're shocked at who you see...