Rule 34 Dev - 1boy 2d 2d_(artwork) animated_skeleton blue_blush blush bondage bottom_sans bound bound_wrists cussing digital_media_(artwork) disembodied_hand disembodied_hands drooling groping hands hands_over_head kneel kneeling magic_hands male male_focus male_only malesub monochrome monster pants_down pants_pulled_down partially_colored profanity restrained sans sans_(undertale) sequence sequential shirt_lift shirt_pulled_up shirt_up simple_background singingsans skeleton solo_male submissive submissive_male swearing sweat third-party_source tied_up tied_wrists touching_crotch trembling uke_sans undead undertale undertale_(series) video_games|1032732