Karyn tests it out.

"wow, that's quite a drastic wish for me besting you in a trick contest." Karyn said. "you tricked me" Jon said accusingly. "now i can win any challenge or contest based on gender". Karyn smiled mischeviously and said "ok then, i challenge you to have your chest jiggle uncomfortablly when you move." "yeah, like that would happen" Jon said sarcasticly, but he did notice his pecs felt strangely heavy despit looking the same, he shifted position and felt them bounce a bit. Karyn smiled victoriously as she saw his pecs bounce and said "interesting, just don't make me challenge you to have a period."