Steve stood in shock and took but a moment to assess the situation. There barely stood a little baby David, now the size of a toddler, with a extra-padded disposable diaper on!
"Wow Dude, sorry about that..."
David looked up at Steve's grinning face in fear and tried to speak but discovered that much more than his appearance had changed.
"Da da?!? Goo Goo Ga!!"
"I said I was sorry!"
David look downward and groped helplessly at the padded mass that was Bobby in vain attempt to remove he who was snuggling his infant genitals so comfortably -
"You know, the height I like and I could get used to the diaper fetish little guy but I'd much more prefer you older with a lot more muscle - in all departments, if you get my meaning..." Steve mused.
David felt his diaper physically wince at Steve's comment just as he, himself underwent another drastic change. His toddler physique morphed into a freakishly muscled bodybuilder as Bobby the diaper also seemed to inflate in size & shape making room for David's now clydesdale-sized manhood within!! All this while stile maintaining his toddler stature!
"Much Better Dude!"