Rule 34 Dev - 1boy animal_collar animal_ears animal_print ass bara black_hair chain_leash chains closed_eyes collar completely_nude cow_boy cow_ears cow_print cow_tail cropped_torso ear_tag facial_hair feet gag goatee_stubble green_eyes hibino_kafka highres horns kaijuu_no._8 lactation large_pectorals leash lying male_focus male_lactation male_only milking_machine milking_machine_on_male mu_(i999ioo2) multiple_views navel nipples nude on_stomach one_eye_closed pectorals projectile_lactation short_hair spread_legs stomach stubble tail testicle_peek thighs twitter_username underwear underwear_only white_background|12445654120