After the Flash, Jon felt a tremendous weight on his chest, he hadn't thought about his comfort level. he was wearing a unique type of bra to support his H-cups, and he couldn't say how he knew what size they were.
The bra was made of a much thicker material so he could support his breasts his shirt had an elastic band sewn in so that it could taper around his waist after going around his massive breasts.
Just then he heard his mom yell upstairs to him
"Jon you'd better be changing into your bikini, you know we had plans to go to the pool with Karyn's family today.
he had completely forgot, and now he was expected to go swimming with these things, he exited the bathroom and made his way to his room, found a yellow bikini top with red trim and matching bottoms, just that they were a mix between normal trunks and a speedo. in the spot where his trunks normally were.
he removed his shirt and 'bra' and nearly fell over from the weight. he had to sit on the floor, and lay his breasts on the ground then slip the cups of the bikini under them to attach the top, then tie it around his neck.
He felt so exposed wearing a skimpy bikini with his ginormous boobs
