Rule 34 Dev - 1:1 1:1_aspect_ratio 1boy 2d 2d_(artwork) animated_skeleton artist_name blue_blush blush bottom_sans clothed clothing digital_media_(artwork) english_text glowing groping hand_on_chest hand_on_face hands implied_masturbation male male_focus male_only malesub monochrome monster multiple_views orgasm_face partially_clothed partially_colored sans sans_(undertale) shirtless sigh simple_background singingsans skeleton solo_focus solo_male submissive submissive_male talking_to_viewer text third-party_source topless topless_male trembling uke_sans undead undertale undertale_(series) video_games|1032738