Rule 34 Dev - 1boy 2010s 2017 2d 2d_(artwork) animated_skeleton blue_blush blue_penis blush closed_eyes comic_sans crying cussing digital_media_(artwork) ectopenis english_text fully_clothed genital_fluids genitals heki_(miss60250) male male_masturbation male_only masturbation monster monster_boy penile penile_masturbation penis penis_focus precum profanity sans sans_(undertale) skeleton solo_male submissive swearing sweat sweatdrop tears tears_of_pleasure text touching_penis touching_self twitter two-handed_masturbation undead undertale undertale_(series) video_game_character video_games visible_nipples|1014261