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ambiguous_gender duo eating human kritterart machine mammal mettaton mettaton_ex not_furry pose protagonist_(undertale) robot undertale video_games <3 abdominal_bulge actually--mettaton anon belly big_belly black_hair boots bulge butt clothing dialogue english_text eyewear fangs footwear glasses gurgle hair hi_res high_heels humanoid hyper hyper_belly machine male mettaton mettaton_ex open_mouth pink_eyes pink_saliva post_vore robot saliva sharp_teeth shoes simple_background sitting slosh stomach_noises sunglasses teeth text tongue tongue_out undertale video_games vore white_background wide_hips <3 belly big_belly big_breasts breasts dildo female hi_res humanoid love_handles machine mettaton not_furry overweight overweight_female red-winged-angel robot sex_toy solo undertale vibrator video_games 2015 adventure_time alien ambiguous_gender burgerpants cartoon_network crossover dragon_ball female frieza gem_(species) ghost machine male marceline_abadeer mettaton mettaton_ex napstablook natouu pearl_(steven_universe) robot spirit steven_universe undertale vampire video_games zarbon black_and_white chair comic english_text ghost machine mettaton monochrome napstablook robot solo speech_bubble spirit squatlord text undertale video_games comic dialogue duo english_text fire ghost machine mettaton napstablook robot speech_bubble spirit squatlord text undertale video_games comic dialogue english_text eye_patch eyewear fangs fish humanoid machine marine mettaton muscular robot simple_background squatlord text undertale undyne video_games <3 absolutely_everyone alligator alphys animated_skeleton annoying_dog_(undertale) arachnid arthropod asgore_dreemurr asriel_dreemurr asriel_dreemurr_(god_form) axe beard bone boss_monster bratty_(undertale) burgerpants canine caprine cat catty_(undertale) chara_(undertale) crocodilian delta_rune dog dogamy dogaressa doggo english_text eye_patch eyewear facial_hair feline fish flora_fauna flowey_the_flower gerson ghost glasses greater_dog group hood horn human lacardozarojas lagomorph lesser_dog lizard machine mammal marine melee_weapon mettaton mettaton_ex mettaton_neo model_sheet monster_kid muffet napstablook nicecream_man papyrus_(undertale) photoshop_flowey plant polearm protagonist_(undertale) rabbit rabbit_shopkeeper reptile river_person_(undertale) robot sans_(undertale) scalie skeleton spider spirit sword temmie_(undertale) text toriel turtle undead undertale undyne undyne_the_undying video_games weapon 2015 anthro asgore_dreemurr barelynsfw_(artist) black_hair blonde_hair blush boss_monster caprine chair_position clothed clothing cum cum_inside cuntboy cuntboy/male duo erection from_behind_position fur girly goat hair hi_res horn humanoid humanoid_penis internal intersex intersex/male large_penetration larger_male machine male mammal mettaton mettaton_ex on_lap open_mouth penetration penis robot sex shiny shocked simple_background sitting sitting_on_lap size_difference smaller_cuntboy smaller_intersex soul straddling undertale video_games white_fur alphys animated_skeleton asgore_dreemurr asriel_dreemurr beard bone boss_monster caprine child delta_rune eye_patch eyewear facial_hair fish fur glasses horn human lizard long_ears machine mammal marine mettaton model_sheet monster_kid papyrus_(undertale) potoobrigham protagonist_(undertale) reptile robot sans_(undertale) scalie skeleton striped_sweater toriel undead undertale undyne video_games white_fur young alphys animated_skeleton asgore_dreemurr asriel_dreemurr bone boss_monster caprine english_text eye_patch eyewear fish fofufofu ghost glasses group hand_holding human lizard machine mammal marine mettaton monster_kid napstablook papyrus_(undertale) protagonist_(undertale) reptile robot sans_(undertale) scalie simple_background skeleton spirit striped_sweater text toriel undead undertale undyne video_games white_background 2015 alphys ambiguous_gender animated_skeleton anthro bone boss_monster caprine female fish flora_fauna flower flowey_the_flower fur goat human machine male mammal marine mettaton papyrus_(undertale) plant protagonist_(undertale) reptile robot sans_(undertale) scalie skeleton toriel undead undertale undyne unknown_artist video_games white_fur <3 2015 clothing colored_nails digital_media_(artwork) fingernails footwear girly glitch high_heels humanoid infel-phira looking_at_viewer machine mettaton mettaton_ex not_furry robot shiny shoes solo undertale video_games <3 :3 canine clothed clothing dog fur greater_dog hair hi_res houndertale human lesser_dog male mammal mettaton pants pet shirt smile stuffthatisirrelevant text undertale video_games black_hair blue_hair dj_booth female fish ghost hair headphones humanoid machine male marine mettaton mettaton_ex microphone napstablook processormalfunction robot shiny shyren singing sparkle spirit stage undertale video_games <3 alcohol alpha_channel alphys annoying_dog_(undertale) 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 monochrome napstablook papyrus_(undertale) pie plant polearm protagonist_(undertale) reptile sans_(undertale) scalie sibling skeleton skull spear spirit tem temmie_(undertale) thorns toriel undertale undyne video_games weapon web whimsum wingdings <3 blush clothed clothing digital_media_(artwork) duo girly hair humanoid machine male male/male mettaton mettaton_ex not_furry robot selfcest simple_background smile square_crossover undertale unknown_artist video_games alternate_universe apocalypse_au boots clothing footwear gloves hair hi_res high_heels humanoid kkhoppang machine mettaton mettaton_ex not_furry robot shoes tire undertale video_games 4_fingers clothing gloves machine mettaton microphone not_furry purple_background robot signature simple_background smile solo spotlight sr_pelo undertale video_games wheel <3 armless black_hair clothed clothing digital_media_(artwork) duo english_text girly hair humanoid lying machine male male/male mettaton mettaton_ex mettaton_neo not_furry on_back open_mouth purple_background robot selfcest simple_background speech_bubble square_crossover standing text undertale unknown_artist video_games arachnid arthropod clothed clothing duo female friisans hair hand_holding humanoid machine male mettaton mettaton_ex muffet multi_eye ribbons robot simple_background spider undertale video_games white_background <3 <3_eyes 2015 absolutely_everyone alligator alphys ambiguous_gender amphibian animated_skeleton annoying_dog_(undertale) anthro arachnid armless arthropod asgore_dreemurr asriel_dreemurr bone boss_monster bow_tie bratty_(undertale) breasts burgerpants canine caprine cat catty_(undertale) chara_(undertale) crocodilian dog dogamy dogaressa doggo dummy elemental feline female fire_elemental fish flora_fauna flower flowey_the_flower food frog froggit gerson ghost goat greater_dog grillby group hi_res horn hot_dog human kissing knife leaves lesser_dog lizard machine mad_dummy male mammal marine mel12da_(artist) melee_weapon mettaton mettaton_ex microphone monster_kid muffet napstablook nice_cream_vendor nicecream_man papyrus_(undertale) pasta pie plant polearm protagonist_(undertale) reptile rg01_(undertale) rg02_(undertale) robot royal_guards sans_(undertale) scalie shield shyren simple_background skeleton spaghetti sparkles spear spider spirit star striped_shirt tem temmie_(undertale) toriel turtle umbrella undead undertale undyne video_games weapon web white_background 2016 alphys animated_skeleton anthro armless asgore_dreemurr asriel_dreemurr beach big_breasts bikini bone boss_monster breasts caprine chara_(undertale) cleavage clothed clothing female fish gaster ghost goat group human lizard machine male mammal marine mature_female mettaton monster_kid napstablook papyrus_(undertale) photo polarissketches protagonist_(undertale) reptile robot sans_(undertale) scalie seaside skeleton smile spirit swimsuit toriel undead undertale undyne video_games 2016 alphys animated_skeleton anthro armless asgore_dreemurr asriel_dreemurr beach big_breasts bikini bone boss_monster breasts caprine chara_(undertale) cleavage clothed clothing female fish gaster ghost goat group human lizard machine male mammal marine mature_female mettaton monster_kid napstablook papyrus_(undertale) photo polarissketches protagonist_(undertale) reptile robot sans_(undertale) scalie seaside skeleton smile spirit swimsuit toriel undead undertale undyne video_games 2016 alphys animated_skeleton anthro armless asgore_dreemurr asriel_dreemurr beach big_breasts bikini bone boss_monster breasts caprine chara_(undertale) cleavage clothed clothing female fish gaster ghost goat group human lizard machine male mammal marine mature_female mettaton monster_kid napstablook papyrus_(undertale) photo polarissketches protagonist_(undertale) reptile robot sans_(undertale) scalie seaside skeleton smile spirit swimsuit toriel undead undertale undyne video_games 2016 english_text ghost hi_res machine male mettaton mettaton_ex napstablook not_furry polarissketches robot shiny spirit text undertale video_games <3 belly big_belly big_butt butt huge_butt hyper hyper_butt machine male mettaton moobs morbidly_obese obese overweight robot signature solo tubbertoons undertale video_games belly big_belly eyelashes hi_res humanoid machine male mettaton microphone not_furry open_mouth overweight robot simple_background solo thick_thighs tubbertoons undertale video_games white_background alphys animated_skeleton asgore_dreemurr beard blush bone boss_monster caprine dualityfrisk facial_hair fangs fish fur goat group hand_holding hug humanoid lizard long_ears lying machine mammal marine mettaton monster_kid papyrus_(undertale) reptile robot sans_(undertale) scalie simple_background skeleton stripes toriel undead undertale undyne video_games white_fur 2015 ambiguous_gender android asgore_dreemurr boots boss_monster caprine clothing crown duo erection footwear fur girly high_heels horn humanoid humanoid_penis machine male mammal mettaton mettaton_ex penis pillow poster precum retracted_foreskin robot shiroiyagi shoes size_difference uncut undertale video_games white_fur 1girl android black_hair breasts genderswap hair_over_one_eye mettaton mettaton_ex pink_eyes short_hair solo undertale alphys comic counter dialogue english_text hi_res humanoid lizard machine mettaton mettaton_ex plumfsh reptile robot scalie signed text undertale video_games <3 comic debris dialogue english_text fish hi_res humanoid humor machine marine mettaton mettaton_ex plumfsh robot scalie signed sofa star text undertale undyne video_games <3 alphys canine clothing dessert dog dogamy dogaressa duo elemental eye_patch eyewear facial_hair fire_elemental fish food ghost glasses grillby headphones ice_cream lizard machine mammal marine mettaton mustache napstablook necktie reptile robot scalie solo spirit suit undertale undyne video_games yamsgarden alphys animated_skeleton annoying_dog_(undertale) asgore_dreemurr asriel_dreemurr bone boss_monster canine caprine chara_(undertale) dog fairy fish ghost human lizard machine mammal marine mettaton monster_kid napstablook nintendo papyrus_(undertale) protagonist_(undertale) reptile robot rokuyon sans_(undertale) scalie skeleton spirit the_legend_of_zelda toriel undead undertale undyne video_games absolutedream absurd_res animated_skeleton annoying_dog_(undertale) asriel_dreemurr bone boss_monster canine caprine clothing comic crying dialogue dog english_text eye_patch eyewear fish hi_res human lizard machine mammal marine mettaton mettaton_ex monochrome monster_kid papyrus_(undertale) protagonist_(undertale) reptile robot sans_(undertale) scalie shirt skeleton tears text toriel undead undertale undyne video_games 1other =_= androgynous box brown_hair cardboard_box cosplay frisk_(undertale) full_body mettaton mettaton_(cosplay) microphone robot sasa_kichi simple_background standing undertale white_background yellow_skin <3 <3_eyes 2017 big_breasts breast_fondling breasts crossgender dildo female fondling hand_on_breast hi_res huge_breasts lactating machine masturbation mettaton mettaton_ex not_furry open_mouth penetration pussy robot sex_toy slb undertale vaginal vaginal_penetration video_games android anus_outline bulge butt clothed clothing dsan girly humanoid kneeling looking_back machine makeup male mascara mettaton mettaton_ex not_furry robot smile solo tight_clothing undertale video_games 2018 all_fours anthro anus big_butt blush butt cat catty_(undertale) ear_piercing feet feline female hair looking_back lumineko mammal mettaton multicolored_hair open_mouth piercing pussy short_hair solo_focus two_tone_hair undertale video_games amaterasu androgynous animal annoying_dog asymmetrical_clothes black_shirt bodypaint boots chara_(undertale) crop_top crossover domu_(hamadura) fire flowey_(undertale) frisk_(undertale) heart kirby kirby_(series) lesser_dog looking_at_viewer magatama meta_knight mettaton midriff miniskirt monster_boy multiple_crossover nintendo octarian octoling ookami_(game) papyrus_(undertale) pink_hair pointy_ears sans shield shirt simple_background skeleton skirt smile splatoon_(series) splatoon_2 splatoon_2:_octo_expansion squidbeak_splatoon striped striped_shirt striped_sweater super_smash_bros. sweater tentacle_hair translated undertale undyne wolf male markus_vandirbelt mettaton neoflare rubber solo sonic_(series) teasing undertale video_games