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4threset aaron_(undertale) alphys amphibian animated_skeleton anthro arachnid arthropod asgore_dreemurr asriel_dreemurr bone canine caprine cat chara_(undertale) dog equine feline female fish flowey_the_flower frog ghost goat grillby horse human lizard machine mad_dummy male mammal marine mettaton monster monster_kid muffet napstablook papyrus_(undertale) protagonist_(undertale) reptile robot sans_(undertale) scalie shyren skeleton spider spirit temmie_(undertale) toriel undead undertale undyne video_games 2016 armpits bow_tie clothed clothing elemental eyewear fire_elemental food glasses grillby hands_behind_head hi_res jonsthaman ketchup legwear lying male not_furry on_back pubes simple_background solo thigh_highs thong undertale video_games white_background anthro cigarette clothed clothing dialogue english_text erection eyewear fire glasses grillby half-closed_eyes kayla-na looking_away lying male monster on_floor on_side pecs penis smile solo text undertale video_games ambiguous_gender bioluminescence clothing coat fan_character fire glowing grillby grin hands_together korhiper looking_at_viewer necktie suit underfell undertale video_games white_eyes white_pupils ! animated_skeleton better_version_at_source bone boss_monster caprine clothed clothing comic dialogue elemental english_text eye_patch eyewear female fire_elemental fish goat grillby group loverofpiggies male mammal marine sans_(undertale) skeleton text toriel undead undertale undyne video_games 2girls ;d alphys annoying_dog arm_wrap artist_name asgore_dreemurr bad_id bad_tumblr_id blue_skin blush boots chara_(undertale) creature denim dogamy dogaressa easter easter_egg egg eyepatch eyeshadow flowey_(undertale) frisk_(undertale) full_body gills grass grillby grin happy_easter hatching head_fins makeup mettaton_ex monster_girl muffet multiple_girls nise_(wraith615) one_eye_closed onionsan open_mouth outstretched_arms paintbrush palette papyrus_(undertale) ponytail red_eyes red_hair sans scar sharp_teeth simple_background sitting smile spoilers surprised sweat sweatdrop tank_top teeth temmie toriel undertale undyne w.d._gaster white_background yellow_sclera yellow_skin younger aftertale animated_skeleton bone boss_monster caprine clothed clothing comic dialogue elemental english_text female fire_elemental goat grillby group human loverofpiggies male mammal papyrus_(undertale) protagonist_(undertale) sans_(undertale) skeleton text toriel undead undertale video_games alphys androgynous annoying_dog asgore_dreemurr asriel_dreemurr bad_id bad_pixiv_id blood bloody_clothes bloody_hands bloody_knife bloody_weapon boots bratty_(undertale) brown_hair catty_(undertale) chara_(undertale) closed_eyes collared_shirt creature dogamy dogaressa doggo endogeny english everyone flowey_(undertale) full_body gotmil gradient gradient_background grillby heart heart_necklace height_difference jewelry knife leaf mad_dummy_(undertale) mad_jick mettaton mettaton_ex monster_kid_(undertale) muffet napstablook necklace onionsan papyrus_(undertale) pillar plant red_background river_person_(undertale) royal_guard_01_(undertale) royal_guard_02_(undertale) sans shirt shorts shyren simple_background sitting smile spoilers standing striped striped_shirt temmie toriel tray tsunderplane undertale undyne vines w.d._gaster weapon 2016 adjusting_eyewear armlet artist_name bow bowtie character_name collared_shirt copyright_name cowboy_shot dress_shirt elemental_(creature) fire food french_fries from_side glasses grillby hamburger highres lalalaleng long_sleeves male_focus profile shirt signature sleeve_garters solo undertale vest white_shirt animated_skeleton annoying_dog bone bridge canine cannon dog eyewear female fire fish g0966 glasses grillby hair male mammal marine melee_weapon monster papyrus_(undertale) polearm ranged_weapon red_hair rope sans_(undertale) shuriken skeleton spear sword undead undertale undyne video_games weapon yellow_sclera animated_skeleton annoying_dog bone bridge canine cannon dog eyewear female fire fish g0966 glasses grillby male mammal marine melee_weapon monochrome monster papyrus_(undertale) polearm ranged_weapon rope sans_(undertale) skeleton spear sword undead undertale undyne video_games weapon ambiguous_gender animated bar bar_stool bartender booth bow_tie card chara_(undertale) clothing counter cup cups dimly_lit door drinks elemental eyewear fire fire_elemental glasses grillby human imminent_fight jukebox male mammal neon_sign niceratops not_furry playing_card protagonist_(undertale) rolling_up_sleeves serious shadow solo table undertale video_games alcohol animated bartender beverage elemental eyewear fire fire_elemental food glasses grillby male nirelaz not_furry undertale video_games elemental female fire fire_elemental fuku_fire grillby group heats_flamesman male monster not_furry umbriel undertale video_games ambiguous_gender bartender blush bow_tie elemental eyewear fire fire_elemental foervraengd glasses grillby group heats_flamesman male not_furry oven pyrope rope selfie snapchat undertale video_games volcano vulkin alphys ambiguous_gender asgore_dreemurr board_game boss_monster burgerpants clothing dmsaud1004 dress elemental female fire fire_elemental fish game_(disambiguation) ghost grillby group hair_bow hair_ribbon hat human joseontale lesser_dog lizard male mammal marine mettaton monster monster_kid muffet napstablook papyrus_(undertale) protagonist_(undertale) reptile ribbons sans_(undertale) scalie spirit tem temmie_(undertale) toriel undertale undyne video_games woshua aftertale animated_skeleton better_version_at_source bone boss_monster caprine clothed clothing comic dialogue elemental english_text female fire_elemental goat grillby group human loverofpiggies male mammal papyrus_(undertale) protagonist_(undertale) sans_(undertale) skeleton text toriel undead undertale video_games ! animated_skeleton better_version_at_source bone boss_monster caprine clothed clothing comic dialogue elemental english_text eye_patch eyewear female fire_elemental fish goat grillby group loverofpiggies male mammal marine sans_(undertale) skeleton text toriel undead undertale undyne video_games bdsm bondage bound clothed clothing elemental eyewear fire fire_elemental grillby hi_res ksuriuri male penis solo undertale video_games absolutely_everyone absurd_res amalgamate ambiguous_gender animated_skeleton asgore_dreemurr asriel_dreemurr bone boss_monster chara_(undertale) dogamy dogaressa doggo female fish flowey_the_flower gaster ghost greater_dog grillby group hi_res human machine male mammal marine marytan mettaton monster napstablook onionsan papyrus_(undertale) protagonist_(undertale) robot sans_(undertale) skeleton spirit temmie_(undertale) toriel undead undertale undyne video_games elemental eyewear female fire fire_elemental fuku_fire glasses grillby group heats_flamesman male monster not_furry scarf turtleneck umbriel undertale video_games <3 alphys blush bowl class dogpu elemental english_text eyewear female female/female fire fire_elemental fish glasses grillby hi_res lizard male marine monster paper peanuts reptile scalie stool style_parody text undertale undyne video_games arachnid arthropod burgerpants cat clothing cosplay cup dessert dog_food doughnut dress elemental feline fire fire_elemental food fries grillby hair_bow hair_ribbon ice_cream lagomorph maid_uniform mammal monster muffet nicecream_man protagonist_(undertale) rabbit ribbons ryokutya1107 spider undertale uniform video_games absurd_res bed blush clothed clothing grillby hi_res male male/male mammal not_furry sans_(undertale) sleeping spooning superabsurd_res undertale video_games absurd_res blush bone cleaning clothed clothing crying elemental fire fire_elemental grillby hi_res kissing male male/male not_furry sans_(undertale) skeleton soothing tears undertale video_games <3 blush bone clothed clothing duo elemental feeling_up fire fire_elemental grillby male male/male not_furry sans_(undertale) skeleton undertale video_games <3 bed bone clothed clothing duo elemental feeling_up fire fire_elemental grillby hug lounging male not_furry sans_(undertale) skeleton undertale video_games <3 alcohol alpha_channel alphys annoying_dog asgore_dreemurr asriel_dreemurr beverage bone boss_monster bottle brother canine cape caprine chara_(undertale) clothed clothing cocktail cousins creepy crossdressing crown dog dress elemental eye_patch eyewear fairy female fire fire_elemental fish flora_fauna flower flowey_the_flower food gaster gaster_blaster ghost goat grillby hi_res horn human ketchup lamey-ami lizard male mammal marine melee_weapon mettaton monster napstablook papyrus_(undertale) pie plant polearm protagonist_(undertale) reptile sans_(undertale) scalie sibling skeleton skull spear spirit tem temmie_(undertale) thorns toby_fox toriel undertale undyne video_games weapon web whimsum wingdings <3 alphys ambiguous_gender asgore_dreemurr asriel_dreemurr bone boss_monster bow_tie burgerpants caprine cat chara_(undertale) drawing dummy elemental eye_patch eyewear feline female fire fire_elemental fish food gaster ghost glasses goat grillby human knife lagomorph lizard locket machine mad_dummy male mammal marine mettaton monster monster_kid napstablook nicecream_man noodles papyrus_(undertale) protagonist_(undertale) rabbit reptile robot sans_(undertale) scalie skeleton spirit tem temmie_(undertale) undertale undyne video_games waitingmatter aftertale animated_skeleton bone boss_monster caprine clothed clothing comic dialogue elemental english_text female fire_elemental goat grillby group human loverofpiggies male mammal papyrus_(undertale) protagonist_(undertale) sans_(undertale) skeleton text toriel undead undertale video_games elemental_(creature) fiery_hair fire formal frisk_(undertale) glasses grillby hand_in_pocket meammy semi-rimless_eyewear shirt signature under-rim_eyewear undertale wall_slam 3boys bad_id bad_pixiv_id blonde_hair eyepatch fire glasses glowing glowing_eye grillby humanization lictter long_hair multicolored_hair multiple_boys orange_hair papyrus_(undertale) ponytail red_hair sans scarf short_hair silver_hair two-tone_hair undertale undyne <3 2015 bewters_(artist) bow_tie clothing cup eyewear glasses grillby happy not_furry simple_background tagme undertale video_games <3 2015 aaron_(undertale) absolutely_everyone absurd_res alligator alphys amalgamate ambiguous_gender amphibian animated_skeleton annoying_dog anthro antlers arachnid armor arthropod asgore_dreemurr asriel_dreemurr astigmatism avian bear beard bird black_hair blush body_horror bone boss_monster bovine bratty_(undertale) burgerpants canine caprine cat catty_(undertale) cervine chara_(undertale) clothed clothing creepy crossdressing digital_media_(artwork) dog dogamy dogaressa doggo duck elemental endogeny english_text equine eyes_closed eyewear faceless facial_hair feline female final_froggit fire fire_elemental fish flora_fauna flower flowey_the_flower frog froggit fur gaster gaster_follower gerson ghost glasses goat goner_kid goo greater_dog grillby group gyftroft hair hair_over_eye hat heats_flamesman hi_res horn horse human hybrid ice icecap jerry_(undertale) knight knight_knight lab_coat lagomorph lava lemon_bread lesser_dog lion lizard loox machine mad_dummy madjick male mammal marine melee_weapon melting memory_head mettaton moldbygg moldsmal monochrome monster monster_kid muffet multi_limb multiple_eyes muscular musical_note napstablook nicecream_man onionsan papyrus_(undertale) pecs pekou_(artist) photoshop_flowey piercing pigtails plant polearm protagonist_(undertale) pyrope rabbit reaper_bird reindeer reptile rg01 rg02 river_person robot sans_(undertale) scalie shyren singing siren skeleton slime smile smoke snowdrake snowdrake's_mother so_sorry spear spider spirit sunglasses teeth tem temmie_(undertale) text toriel tsunderplane turtle undead undertale undyne vegetoid video_games volcano vulkin weapon whimsalot whimsun white_fur wizard_hat woshua animated_skeleton black_eyes bone clothing duo elemental fire_elemental flask gaster grillby hanbok hat joseontale korean_text male mouthless ms1sharklee skeleton smile text undead undertale video_games anthro balls barefoot erection evanight eyewear fire glasses grillby male navel nipples nude pecs penis solo standing undertale video_games ... aftertale bone clothed clothing comic counter dialogue english_text eyewear fire glasses grillby loverofpiggies monster one_eye_closed sans_(undertale) skeleton smile text undead undertale video_games wink ... aftertale avian bird bone bottle canine clothed clothing comic dialogue dog english_text eyewear fire food glasses grillby hair ketchup loverofpiggies mammal protagonist_(undertale) sans_(undertale) skeleton smile text undertale video_games aftertale bone bottle chara_(undertale) clothed clothing comic counter dialogue english_text eyewear fire food glasses grillby hair ketchup loverofpiggies protagonist_(undertale) sans_(undertale) skeleton smile text undertale video_games aftertale avian bird bone bottle clothed clothing comic counter dialogue english_text eyewear fire food glasses grillby human ketchup loverofpiggies mammal protagonist_(undertale) sans_(undertale) skeleton text undertale video_games aftertale avian bird bone bottle clothed clothing comic counter dialogue english_text fire food grillby grin human ketchup loverofpiggies mammal protagonist_(undertale) sans_(undertale) skeleton smile text undertale video_games avian axe bird bone canine clothing counter dog dogamy dogaressa door fire greater_dog grillby lagomorph loverofpiggies mammal melee_weapon one_eye_closed protagonist_(undertale) rabbit sans_(undertale) skeleton stool undertale video_games weapon wink