Rule 34 Dev - 1boy animated asgore_dreemurr balls biceps blush body_hair bondage breathing bulge caprine chains chest_hair chubby clothing crown erect_nipples erection erection_under_clothes fb1907 goat hair horns male male_only mammal monster musclegut muscular penis royalty solo solo_male twitching_penis undertale underwear video_games|2122274240