rule 34 11 1boy abs animal genitalia anthro balls ballsack body fur brown fur brown hair cock tip dark penis dark skin feline flaccid penis fully sheathed furry balls genitals heavy balls hi res hybrid leonine lutrine male male nipples male only mammal masculine matthew x matthew x character muscles muscular anthro muscular male muscular thighs mustelid nipple outline otter pantherine partial male pecs penis scrotum sheath sheath outline sheath play solo tail testicles text thigh thigh gap url 5981312