Rule 34 Dev - 2013 3_horns animal_genitalia barbed_penis bebebebebe biped bondage bound censor_bar censored dripping erection eyeless genital_slit greyscale guide_lines hands_behind_back hands_tied heart highres horn humanoid humanoid_hands humanoid_penis hybrid_penis ineffective_censorship japanese light_bondage looking_at_penis looking_at_self looking_down looking_pleasured male male_only monochrome multi_horn nude open_mouth open_smile penis penis_bondage penis_ribbon portrait precum ribbons self-bondage sharp_teeth side_view simple_background slim slit slitfluid smile solo speech_bubble spikes standing sweat teeth three-quarter_portrait tototoilet vein veiny_penis white_background|2828862392