The smell of baby oil hangs thick in the air. You see your neighbor's skin get slick with baby oil and muscle and you see his muscles begun to swell and harden.
He was never anything special before, but you have to admit, he looks good now. His tighter diaper is making his huge muscle grow even larger than yours. He gains a few inches in height so that he beats you in that department and he gains at least 25 lbs on you, maybe more. But he's beat you in the vascularity department, too, with body fat easily in the single digit percentages. He reaches for the collar of his shirt, the only article he's still wearing besides his shoes and rips it off. He looks primal, almost savage–or as savage as you can be, wearing an XL diaper.
The diaper itself was swelling, looking contorted with its shape. If you had a melon, he had a soccer ball, or a watermelon! The teddy bears on the front of his diaper were beginning to look distorted as the bulge ballooned and stretched outward. You look like a child compared to this man. Below your leather jacket, your diaper is tenting at the sight, pulling the waistband away from your pubes.
Looking back up, your neighbor is heaving and catching his breath. You notice his jawline has squared out, his 5 o'clock shadow dark and nearly permanent. Smolding eyes complete the look. It's such a contradiction, a man that could make Clark Kent look feminine but dressed like a newborn and covered in baby oil and sweat. He grins.
He reaches into his bag and pulls out a piece of fabric. He slips it on over his head, pulling his arms through, and showing a remarkable amount of agility for someone his size. He's not yogi, but he's not far from it, maybe a gymnast. As the bottom hangs near the diaper, you can see it's a onesie with a snap crotch. Reaching into his waistband and adjusting his mammoth manhood, he then positions his entire bulge front and center, snapping the snaps, and ensuring that he shows off the largest. It's the largest bulge, and it's him, THICK padding, and the suspension effect of a properly fitting onesie.