Rule 34 Dev - anthro balls barazoku bear belly black_bear body_hair bondage bottle bound bovine cattle chains cob_webs cock_and_ball_torture colorful cot cum e_stim electricity experimenting eyebrows facial_hair forced_orgasm goatee grunting happy_trail heterochromia hooves kill_switch lab_coat laboratory leaking lightning liquids mad_scientist male male_only mammal muscular nipples orgasm orgasm_control orgasm_denial pain pecs precum pubes reed_bull shaking shocked short size_difference spots strapped_down stretcher tattoo thick_eyebrows trembling wheels yamato_burr yamatopawa|3014194984