Rule 34 Dev - 2021 abs absurd_res anthro balls bara bathroom big_muscles big_penis bowser erection eyebrows genitals hair hi_res horn humanoid_genitalia humanoid_penis inside koopa looking_down male male_only mario_(series) masturbation muscular muscular_anthro muscular_male nintendo nipple_fetish nipple_pinch nipple_play nipples nude pecs penile penile_masturbation penis pinch scalie sharp_teeth shower showering smile soap solo teeth vein video_games water wet wet_body wolfanine|5989676800