rule 34 3d7fantasy 3d artwork abs biceps comic cum cum on body cum on self cumming cumshot flexing gay gay sex growing growth growth sequence growthcomics human hyper hyper balls hyper genitalia hyper muscles hyper penis hyper testicles male male focus male only muscle muscles muscular muscular arms muscular back muscular legs muscular male muscular thighs nipples pecs penis sweating profusely sweaty sweaty body text 4687650