animated_skeleton asriel_dreemurr bone boss_monster caprine eye_patch eyewear fish floating_ring goat group human mammal marine protagonist_(undertale) sans_(undertale) skeleton summer sunglasses swimming tc-96 undead undertale undyne video_games  2016 absurd_res animated_skeleton anthro armor bone brown_hair clothing crossover eye_patch eyes_closed eyewear female final_fantasy final_fantasy_xiv fish footwear gloves glowing glowing_eyes group hair hat hi_res human humanoid knife male mammal marine melee_weapon papyrus_(undertale) polearm protagonist_(undertale) red_eyes sans_(undertale) scarf shield short_hair shoulder_pads skeleton smile spear square_enix staff teeth undead undertale undyne video_games weapon yamtteng  2015 animated_skeleton anthro asgore_dreemurr blonde_hair bone boss_monster bottomless caprine clothed clothing cum cum_on_face dialogue digital_media_(artwork) duo english_text erection fur glitter_trap_boy goat hair hi_res male male/male mammal penis pubes sans_(undertale) shirt side_view skeleton speech_bubble text undead undertale video_games white_fur  ambiguous_gender animated_skeleton anthro bone boss_monster brown_hair caprine eyes_closed fangs female flora_fauna flower flowey_the_flower fur goat hair human mammal phone plant protagonist_(undertale) sans_(undertale) skeleton smile sssonic2 sweat toriel undead undertale video_games white_fur  animated_skeleton bdsm bone clothed clothing collar domination hi_res humanoid jacket leash male not_furry petplay raised_eyebrow ribcage roleplay sans_(undertale) simple_background skeleton smile solo ttoba undead undertale video_games  2015 animated_skeleton anthro blush bone breasts butt caprine clothed clothing duo eyes_closed female goat hi_res horn humor looking_back male mammal marik_azemus34 mature_female pun rear_view sans_(undertale) side_boob skeleton skimpy smile toriel undead undertale video_games  asgore_dreemurr blush bulge male male/male sans_(undertale) size_difference text thebuttdawg undertale video_games  asgore_dreemurr blush male male/male sans_(undertale) size_difference text thebuttdawg tongue undertale video_games  asgore_dreemurr big_penis blush cum cum_inside fellatio huge_penis male male/male oral penis sans_(undertale) sex size_difference text thebuttdawg undertale video_games  1_eye 2015 animated_skeleton bone clothed clothing greyscale hand_in_pocket jacket male modeseven monochrome not_furry sans_(undertale) simple_background skeleton solo sweat sweatdrop text undead undertale video_games white_background  2015 animated_skeleton black_and_white bone clothed clothing hi_res male modeseven monochrome not_furry open_hoodie sans_(undertale) simple_background skeleton solo sweat sweatdrop traditional_media_(artwork) undead undertale video_games white_background  <3 <3_eyes 2016 anthro blush boss_monster breasts caprine duo fellatio female first_person_view fur glowing glowing_penis goat hi_res hollusty horn long_ears male male/female mammal 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animated_skeleton asgore_dreemurr asriel_dreemurr beard bone boss_monster cape caprine clothing delta_rune eye_patch eyewear facial_hair fish flora_fauna flowey_the_flower glasses goat group horn human lizard machine mammal marine melee_weapon mettaton_ex monkeykm moomin papyrus_(undertale) plant polearm protagonist_(undertale) red_eyes reptile robot sans_(undertale) scalie skeleton stripes the_moomins toriel undead undertale undyne video_games weapon  2017 animated bone costume dialogue duo english_text equine female friendship_is_magic horn humor magic mammal my_little_pony pun sans_(undertale) starlight_glimmer_(mlp) text trolling twilight_sparkle_(mlp) undertale unicorn video_games zutheskunk  2016 alphys animated_skeleton asgore_dreemurr bone boss_monster caprine chara_(undertale) clothed clothing eye_patch eyewear fauna female fire fish flora flower flowey_the_flower fur glasses goat grin group hair hi_res horn human knife lizard male mammal marine one_eye_closed papyrus_(undertale) plant protagonist_(undertale) red_hair reptile sans_(undertale) scalie skeleton smile teeth toriel undead undertale undyne video_games watermark weapon white_fur wink yogurtyard_(artist)  2017 angry animated_skeleton armor bone clothed clothing comic digital_media_(artwork) english_text fluffyslipper hi_res male not_furry papyrus_(undertale) sans_(undertale) skeleton teeth text undead undertale video_games  2017 angry animated_skeleton armor bone clothed clothing comic digital_media_(artwork) english_text fluffyslipper hi_res male not_furry papyrus_(undertale) sans_(undertale) skeleton teeth text undead undertale video_games  2017 animated_skeleton armor bone clothed clothing comic digital_media_(artwork) english_text fluffyslipper hi_res male not_furry papyrus_(undertale) sans_(undertale) skeleton teeth text undead undertale video_games  animated_skeleton bone comic goner_kid sans_(undertale) skeleton sleeping taggen96_(artist) tagme undead undertale video_games  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