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alternate_universe animated_skeleton bone brother brothers duo ectopenis glowing_penis hi_res humanoid incest lizheru lizherubones male male_only oral papyrus papyrus_(underswap) papyrus_au sans sans_(underswap) sans_au sex sibling skeleton solo_focus television undead underswap underswap_papyrus underswap_sans undertale undertale_au undertale_fanfiction video_games
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1girls alphys alphys_(underswap) alphys_au alternate_universe anthro armor artist_name belly bottomless breastplate clitoris clothed clothing female female_only gauntlets genitals gloves greaves handwear headgear helmet hi_res melee_weapon musclegut muscular muscular_female navel overweight overweight_female partially_clothed plate_armor polearm pussy reptile scales scalie scythe solo thick_tail thick_thighs transparent_background underswap undertale undertale_(series) undertale_au undertale_fanfiction video_games weapon wide_hips wittless-pilgrim yellow_body yellow_scales
1girls alphys alphys_(underswap) alphys_au alternate_universe anthro armor artist_name belly bottomless breastplate clitoris clothed clothing female female_only gauntlets genitals gloves greaves handwear headgear helmet hi_res melee_weapon musclegut muscular muscular_female navel overweight overweight_female partially_clothed plate_armor polearm pussy reptile scales scalie scythe solo thick_tail thick_thighs transparent_background underswap undertale undertale_(series) undertale_au undertale_fanfiction video_games weapon wide_hips wittless-pilgrim yellow_body yellow_scales
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1girls 2019 2boys ambiguous_penetration arm_grab artist_name ass_grab bandana black_sclera blue_bandana blue_blush blue_body blue_scarf blush blushing ectobody elysiansins female gloves heart male red_body sans sans_(underfell) sans_(underswap) sanscest scarf scars selfcest simple_background skeleton solid_color_background spitroast squeezing_butt thrusting underfell underfell_sans underswap underswap_sans undertale undertale_au undertale_fanfiction undertale_sans watermark yaoi
1girls 2019 2boys ambiguous_penetration arm_grab artist_name ass_grab bandana black_sclera blue_bandana blue_blush blue_body blue_scarf blush blushing ectobody elysiansins female gloves heart male red_body sans sans_(underfell) sans_(underswap) sanscest scarf scars selfcest simple_background skeleton solid_color_background spitroast squeezing_butt thrusting underfell underfell_sans underswap underswap_sans undertale undertale_au undertale_fanfiction undertale_sans watermark yaoi
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2019 2boys 2d artist_name bandana black_sweatpants blue_bandana blue_blush blue_eyes blue_scarf bone ectopenis grumpy grumpy_sub hoodie hugging_penis humanoid incest lizheru lizherubones male male/male male_only orange_hoodie orange_penis papyrus_au penis sans sans_au scarf shoulder_pads simple_background skeleton solo_focus starry_eyes sweatpants text underswap underswap_papyrus underswap_sans undertale_(series) undertale_au undertale_fanfiction unseen_male_face white_background
2019 2boys 2d artist_name bandana black_sweatpants blue_bandana blue_blush blue_eyes blue_scarf bone ectopenis grumpy grumpy_sub hoodie hugging_penis humanoid incest lizheru lizherubones male male/male male_only orange_hoodie orange_penis papyrus_au penis sans sans_au scarf shoulder_pads simple_background skeleton solo_focus starry_eyes sweatpants text underswap underswap_papyrus underswap_sans undertale_(series) undertale_au undertale_fanfiction unseen_male_face white_background
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