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1:1 1:1_aspect_ratio 1boy 2020s 2022 alternate_version_available animated_skeleton artist_name artist_signature bed bed_sheet bedroom blue_jacket blush bottomless clothing comic_sans drooling english_text fallen_ghost_angel_(artist) hooded_jacket hoodie indoors jacket male male_focus male_only monster naked_male nude nude_male on_bed pixel_(artwork) pixel_art red_blush sans sans_(undertale) skeleton socks socks_only solo_male talking_to_viewer text throwing_clothes throwing_clothing topless undead undertale undertale_(series) undressed white_socks 1:1 1:1_aspect_ratio 1boy 2020s 2022 alternate_version_available animated_skeleton artist_name artist_signature bed bed_sheet bedroom blue_blush blue_jacket blue_penis blush bodily_fluids bottomless clothing comic_sans drooling ectopenis english_text erect_penis erection fallen_ghost_angel_(artist) fluids hooded_jacket hoodie indoors jacket male male_focus male_only monster naked_male nude nude_male on_bed penis pixel_(artwork) pixel_art sans sans_(undertale) skeleton socks socks_only solo_male talking_to_viewer text throwing_clothes throwing_clothing topless undead undertale undertale_(series) undressed white_socks 1:1 1:1_aspect_ratio 1boy 2020s 2023 alternate_version_available animated_skeleton artist_name artist_signature bed bed_sheet bedroom black_and_white black_background blush bottomwear bulge clothed clothing comic_sans drooling english_text fallen_ghost_angel_(artist) fully_clothed gloves hooded_jacket hoodie indoors jacket looking_down male male_focus male_masturbation male_only masturbation monochrome monster off_shoulder on_bed partially_colored pixel_(artwork) pixel_art red_blush sans sans_(undertale) skeleton solo_male soul soul_sex text topwear undead undertale undertale_(series) visible_breath white_gloves 1:1 1:1_aspect_ratio 1boy 2020s 2023 alternate_version_available animated_skeleton artist_name artist_signature bed bed_sheet bedroom black_and_white black_background blue_blush blush bottomwear bulge clothed clothing comic_sans drooling english_text fallen_ghost_angel_(artist) fully_clothed gloves glowing glowing_genitalia hooded_jacket hoodie indoors jacket looking_down male male_focus male_masturbation male_only masturbation monochrome monster off_shoulder on_bed partially_colored penis_bulge pixel_(artwork) pixel_art sans sans_(undertale) skeleton solo_male soul soul_sex text topwear undead undertale undertale_(series) visible_breath white_gloves 1boy 2020s 2022 animated_skeleton artist_name artist_signature bed bed_sheet bedroom blanket blue_blush blue_cum blue_jacket blue_penis blush bodily_fluids bottomless clothed clothing cum cum_on_body cum_on_chest cum_on_face cum_on_hand cum_on_own_face cum_on_self cum_on_upper_body cumshot ectopenis ejaculation erection fallen_ghost_angel_(artist) fluids genitals gloves hooded_jacket hoodie indoors jacket laying_on_back laying_on_bed lying_on_back lying_on_bed male male_focus male_masturbation male_only masturbation monster on_bed orgasm partially_clothed penile penile_masturbation penis pillow pixel_(artwork) pixel_art sans sans_(undertale) sequence sequential skeleton smooth_penis socks solo_male topless topwear undead undertale undertale_(series) white_gloves white_socks 1boy 2020s 2022 animated_skeleton artist_name artist_signature bed bed_sheet bedroom blanket blue_blush blue_jacket blue_penis blush bottomless clothed clothing ectopenis fallen_ghost_angel_(artist) gloves hooded_jacket hoodie indoors jacket laying_on_back laying_on_bed lying_on_back lying_on_bed male male_focus male_masturbation male_only masturbation monster on_bed partially_clothed penile penile_masturbation penis pillow pixel_(artwork) pixel_art pleasure_face sans sans_(undertale) sequence sequential skeleton smooth_penis socks solo_male sweat topless topwear undead undertale undertale_(series) white_gloves white_socks 1boy 2020s 2022 animated_skeleton artist_name artist_signature bed bed_sheet bedroom blanket blue_blush blue_jacket blue_penis blush bottomless clothed clothing ectopenis fallen_ghost_angel_(artist) gloves glowing glowing_genitalia glowing_penis hooded_jacket hoodie indoors jacket laying_on_back laying_on_bed looking_away lying_on_back lying_on_bed male male_focus male_only monster on_bed partially_clothed penile penis pixel_(artwork) pixel_art sans sans_(undertale) sequence sequential skeleton smooth_penis solo_male sweat topless topwear undead undertale undertale_(series) white_gloves 1boy 2020s 2022 animated_skeleton artist_name artist_signature bed bed_sheet bedroom blanket blue_jacket blue_penis bottomless clothed clothing fallen_ghost_angel_(artist) gloves hand_behind_head hand_towards_viewer hooded_jacket hoodie indoors jacket laying_on_back laying_on_bed lying_on_back lying_on_bed male male_focus male_only monster on_bed one_eye_closed partially_clothed pillow pixel_(artwork) pixel_art sans sans_(undertale) sequence sequential skeleton socks solo_male topless topwear undead undertale undertale_(series) white_gloves white_socks 1boy 2020s 2022 animated_skeleton artist_name artist_signature bed bed_sheet bedroom blue_blush blue_cum blue_jacket blue_penis blush bodily_fluids closed_eyes clothed clothing cum cumshot ectopenis ejaculation fallen_ghost_angel_(artist) fluids gloves hooded_jacket hoodie humping indoors jacket kneel male male_focus male_only monster on_bed penile penis pillow_humping pillow_sex pixel_(artwork) pixel_art sans sans_(undertale) sequence sequential skeleton socks solo_male straddling undead undertale undertale_(series) video_games visible_breath white_gloves white_socks window 1boy 2020s 2022 animated_skeleton artist_name artist_signature bed bed_sheet bedroom blue_blush blue_jacket blue_penis blush clothed clothing ectopenis fallen_ghost_angel_(artist) gloves hooded_jacket hoodie humping indoors jacket kneel looking_down male male_focus male_only masturbation monster motion_lines on_bed penile penis pillow_grab pillow_humping pillow_sex pixel_(artwork) pixel_art sans sans_(undertale) sequence sequential skeleton socks solo_male straddling undead undertale undertale_(series) video_games visible_breath white_gloves white_socks window 1:1 1:1_aspect_ratio 1boy 2020s 2022 animated_skeleton artist_name artist_signature bed bed_sheet bedroom black_pants blue_blush blue_jacket blush boner boner_in_pants bulge clothed clothing covering_crotch embarrassed erection erection_under_clothes fallen_ghost_angel_(artist) fully_clothed fully_clothed_male gloves glowing glowing_genitalia hands_on_crotch hooded_jacket hoodie horny horny_male indoors jacket looking_away male male_focus male_only monster pants penis_bulge pink_slippers pixel_(artwork) pixel_art sans sans_(undertale) sequence sequential sitting sitting_on_bed skeleton slippers solo_male undead undertale undertale_(series) white_gloves 1:1 1:1_aspect_ratio 1boy 2020s 2022 animated_skeleton arm_support artist_name artist_signature bed bed_sheet bedroom black_pants blue_blush blue_jacket blush boner boner_in_pants bulge clothed clothing erection erection_under_clothes fallen_ghost_angel_(artist) fully_clothed fully_clothed_male glowing glowing_genitalia hooded_jacket hoodie horny horny_male indoors jacket male male_focus male_only monster pants penis_bulge pink_slippers pixel_(artwork) pixel_art pleasure_face sans sans_(undertale) sequence sequential sitting sitting_on_bed skeleton slippers solo_male throbbing throbbing_penis undead undertale undertale_(series) 1:1 1:1_aspect_ratio 1boy 2020s 2022 animated_skeleton arm_support artist_name artist_signature black_pants blue_blush blue_jacket blush boner boner_in_pants bulge clothed clothing comic_sans english_text erection erection_under_clothes fallen_ghost_angel_(artist) fully_clothed fully_clothed_male gloves glowing glowing_genitalia hooded_jacket hoodie horny horny_male in_heat jacket male male_focus male_only monster one_eye_closed pants penis_bulge pink_slippers pixel_(artwork) pixel_art public sans sans_(undertale) sequence sequential sitting skeleton slippers solo_male speech_bubble sweat talking_to_self text text_bubble throbbing throbbing_penis undead undertale undertale_(series) visible_breath white_gloves 1:1 1:1_aspect_ratio 1boy 2020s 2022 animated_skeleton arm_support artist_name artist_signature black_pants blue_blush blue_jacket blush boner boner_in_pants bulge clothed clothing comic_sans english_text erection erection_under_clothes fallen_ghost_angel_(artist) fully_clothed fully_clothed_male gloves glowing glowing_genitalia hooded_jacket hoodie horny horny_male in_heat jacket looking_down male male_focus male_only monster pants penis_bulge pink_slippers pixel_(artwork) pixel_art public sans sans_(undertale) sequence sequential sitting skeleton slippers solo_male speech_bubble sweat talking_to_self text text_bubble undead undertale undertale_(series) white_gloves 1boy 2020s 2022 animated_skeleton arm_support artist_name artist_signature bed bed_sheet bedroom black_bottomwear black_pants blue_blush blue_jacket blue_penis blush bottomwear caught caught_masturbating clothed clothing comic_sans dialog dialogue ectopenis english_text fallen_ghost_angel_(artist) fully_clothed gloves hooded_jacket hoodie indoors jacket male male_focus male_masturbation male_only masturbation monster on_bed pants penile penile_masturbation penis penis_out pink_slippers pixel_(artwork) pixel_art sans sans_(undertale) sequence sequential sitting sitting_on_bed skeleton slippers solo_male sweat talking_to_viewer text topwear undead undertale undertale_(series) white_gloves window 1boy 2020s 2022 animated_skeleton arm_support artist_name artist_signature bed bed_sheet bedroom black_bottomwear black_pants blue_blush blue_cum blue_jacket blue_penis blush bodily_fluids bottomwear closed_eyes clothed clothing cum cumshot ectopenis ejaculation fallen_ghost_angel_(artist) fluids fully_clothed gloves hooded_jacket hoodie indoors jacket male male_focus male_masturbation male_only masturbation monster on_bed orgasm pants penile penile_masturbation penis penis_out pink_slippers pixel_(artwork) pixel_art sans sans_(undertale) sequence sequential sitting sitting_on_bed skeleton slippers solo_male sweat topwear undead undertale undertale_(series) white_gloves window 1boy 2020s 2022 animated_skeleton arm_support artist_name artist_signature bed bed_sheet bedroom black_bottomwear black_pants blue_blush blue_jacket blue_penis blush bottomwear clothed clothing ectopenis fallen_ghost_angel_(artist) fully_clothed gloves hooded_jacket hoodie indoors jacket male male_focus male_masturbation male_only masturbation monster on_bed pants penile penile_masturbation penis penis_out pink_slippers pixel_(artwork) pixel_art pleasure_face sans sans_(undertale) sequence sequential sitting sitting_on_bed skeleton slippers solo_male sweat topwear undead undertale undertale_(series) white_gloves window 1boy 2020s 2023 animated_skeleton anon anonymous artist_name blue_blush blue_hoodie blue_jacket blue_penis blush bottom_sans clothed couch dirty drooling ectopenis exposed faceless_character fallen_ghost_angel_(artist) food holding_phone hooded_jacket hoodie indoors jacket ketchup ketchup_bottle legs_apart male male_focus messy monster off_shoulder phone potato_chips pov precum sans sans_(undertale) skeleton sleeping snack snacks sofa stained_clothes submissive submissive_male sweat uke_sans undead undertale undertale_(series) yaoi 1:1 1:1_aspect_ratio 1boy 2020s 2022 animated_skeleton blue_blush blue_penis blush blushing clothed comic_sans couch ectopenis embarrassed english_text fallen_ghost_angel_(artist) glowing_genitalia glowing_penis looking_away male male_only male_solo monster oversized_clothes oversized_sweater penis penis_out precum precum_drip precum_on_penis sans sans_(undertale) shy simple_background sitting sitting_on_couch sitting_on_sofa skeleton sofa solo solo_male sweater text text_bubble undead undertale undertale_(series) 1boy 2020s 2022 2d 2d_(artwork) animated_skeleton arm_support aroused artist_name artist_signature blue_blush blue_penis blush clothed clothed_male comic_sans cussing digital_media_(artwork) ectopenis english_text erect_penis erection fallen_ghost_angel_(artist) genitals glowing glowing_genitalia glowing_penis heavy_breathing horny horny_male looking_at_own_penis looking_at_penis looking_down male male_only monster penis penis_out precum precum_string profanity sans sans_(undertale) simple_background sitting skeleton solo solo_male swearing text text_bubble thought_bubble undead undertale undertale_(series) video_game_character video_games visible_breath <3 <3_eyes 1:1 1:1_aspect_ratio 2020s 2022 2boys anal anal_penetration anal_sex animated_skeleton anterior_nasal_aperture artist_name ass_up bell bite biting_pillow black_clothing black_hat black_headwear blue_blush blush bodily_fluids bone bottom_sans clothed clothed/nude clothing comic_sans darkner deltarune deltarune_chapter_1 dialogue doggy_position doggy_style_position dominant dominant_male duo english_text fallen_ghost_angel_(artist) fool's_hat from_behind_position gay grabbing_pillow grey_background grin half-closed_eyes hat headgear headwear heart heart_eyes hi_res high_res high_resolution highres humanoid humanoid_on_humanoid humanoid_penetrated humanoid_penetrating humanoid_penetrating_humanoid humanoid_pointy_ears imp jester jevil_(deltarune) looking_pleasured male male/male male_only male_penetrated male_penetrating male_penetrating_male maledom monster motion_lines multicolored_hat naked narrowed_eyes nude open_mouth open_smile penetration penetration_from_behind penile penile_penetration penis_in_ass pillow pillow_bite pillow_grab purple_clothing purple_hat purple_headwear purple_tongue saliva sans sans_(undertale) seme_jevil sex sex_from_behind sharp_teeth simple_background skeleton smile solid_color_background speech_bubble submissive submissive_male sweat teeth text text_bubble tongue tongue_out top-down_bottom-up top_jevil uke_sans undead undertale undertale_(series) video_games yaoi 1:1 1:1_aspect_ratio 1boy 2020s 2023 animated_skeleton artist_name bathing bathroom bathtub blue_blush blue_cum blue_penis blush bubble_bath comic_sans covering_mouth covering_own_mouth cum cumshot door ectopenis ejaculation english_text fallen_ghost_angel_(artist) jerking_off male male_masturbation male_only masturbation monster papyrus papyrus_(font) papyrus_(undertale) penile_masturbation penis profanity sans sans_(undertale) sequence sequential skeleton solo solo_male speech_bubble text text_bubble undead undertale undertale_(series) unseen_character 1:1 1:1_aspect_ratio 1boy 2020s 2023 2d 2d_(artwork) animated_skeleton artist_name bathing bathroom bathtub blue_blush blue_penis blush bubble_bath closed_eyes comic_sans digital_media_(artwork) door ectopenis english_text fallen_ghost_angel_(artist) hand_behind_head jerking_off male male_masturbation male_only masturbation monster penile_masturbation penis sans sans_(undertale) sequence sequential skeleton solo solo_male speech_bubble talking talking_to_self text text_bubble undead undertale undertale_(series) video_game_character video_games 1:1 1:1_aspect_ratio 1boy animated_skeleton balls blue_blush blue_hoodie blue_jacket blue_penis blue_testicles blush clothed comic_sans ectopenis ectoplasm english_text fallen_ghost_angel_(artist) glowing glowing_genitalia glowing_penis grabbing_own_penis hi_res high_res high_resolution hires hooded_jacket hoodie jacket looking_at_own_penis looking_at_penis looking_down lying_on_back male male_masturbation male_only masturbation monster on_back penile_masturbation penis pillow precum sans sans_(undertale) skeleton socks solo solo_male speech_bubble sweat talking_to_self testicles text text_bubble undead undertale undertale_(series) 2020s 2022 animated_skeleton artist_name artist_signature biting_clothes biting_shirt blue_blush blue_cum blue_penis blush bottom_sans bottomless comic_sans cum cum_on_clothes cum_on_face cum_on_self cussing disembodied_hand disembodied_hands ectopenis english_text fallen_ghost_angel_(artist) fingering grabbing_pillow hand handjob hands heart-shaped_pupils heart_eyes male partially_clothed penis precum profanity sans sans_(undertale) semen_on_clothes skeleton solo_focus swearing tears tears_of_pleasure text text_bubble trembling_legs uke_sans undead undertale undertale_(series)