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abstract_background animated_skeleton bone crossover earthbound_(series) english_text low_res lucas_(earthbound) male nintendo not_furry sans_(undertale) sean_hicks skeleton solo text undead undertale undertale_(series) abstract_background animated_skeleton bone boney_(earthbound) crossover duster_(earthbound) earthbound_(series) english_text kumatora_(earthbound) low_res lucas_(earthbound) male nintendo not_furry sans_(undertale) sean_hicks skeleton solo text undead undertale undertale_(series) animated_skeleton bone bow_(feature) bow_tie crossover disney duo eyewear food glasses gravity_falls human humanoid male mammal monochrome not_furry sans_(undertale) sean_hicks skeleton stan_pines undead undertale undertale_(series) 4:3 animated_skeleton anthro asgore_dreemurr averygayskeleton beard big_penis blonde_hair bodily_fluids bone boss_monster_(undertale) bovid caprine dialogue duo english_text erection facial_hair fellatio genital_fluids genitals hair horn huge_penis humanoid_genitalia humanoid_penis male male/male mammal mature_anthro mature_male oral penile penis precum sans_(undertale) sex skeleton source_request text undead undertale undertale_(series) anal anal_penetration animated_skeleton anthro asgore_dreemurr beard blonde_hair bone boss_monster_(undertale) bovid caprine double_penetration elemental_creature erection facial_hair fellatio fire fire_creature genitals grillby group group_sex hair horn male male/male mammal mature_anthro mature_male oral oral_penetration penetration penile penis sans_(undertale) sex skeleton spitroast threesome trio undead undertale undertale_(series) unknown_artist anal anal_penetration animated_skeleton anthro asgore_dreemurr beard bisexual blonde_hair bone boss_monster_(undertale) bovid butt caprine dialogue elemental_creature elemental_humanoid english_text eyewear facial_hair female fire fire_creature foursome fur glasses grillby group group_sex hair hi_res hindpaw horn humanoid interspecies male male/female male/male mammal notsafefortem pawpads paws penetration purple_background sandwich_position sans_(undertale) sex simple_background skeleton speech_bubble text toriel undead undertale undertale_(series) white_body white_fur 1:1 alternate_universe animated better_version_at_source bone brother_(lore) brothers_(lore) incest_(lore) kissing male monster not_furry papyrus_(undertale) sans_(undertale) sibling_(lore) skeleton underswap undertale undertale_(series) unknown_artist 1:1 alternate_universe animated_skeleton bedroom blush bone comic dialogue english_text humanoid lizheru male monster not_furry sans_(undertale) skeleton solo text undead underswap undertale undertale_(series) 1:1 alternate_universe animated_skeleton bedroom blue_eyes blush bone clothing comic comicest dialogue english_text humanoid lizheru male monster not_furry sans_(undertale) scarf skeleton sniffing solo text undead underswap undertale undertale_(series) 1:1 alternate_universe animated_skeleton bedroom blue_eyes blush bone comic dialogue english_text humanoid lizheru male monster not_furry sans_(undertale) skeleton sniffing solo text undead underswap undertale undertale_(series) 1:1 alternate_universe animated_skeleton bedroom blue_eyes blush bone comic dialogue english_text eyes_closed heart_symbol incest_(lore) lizheru male monster not_furry papyrus_(undertale) sans_(undertale) sibling_(lore) skeleton sleeping text undead underswap undertale undertale_(series) 1:1 alternate_universe animated_skeleton bedroom blue_eyes blush bodily_fluids bone brother_(lore) brothers_(lore) comic dialogue english_text eyes_closed heart_symbol hug incest_(lore) lizheru male male/male monster not_furry papyrus_(underswap) papyrus_(undertale) sans_(underswap) sans_(undertale) sibling_(lore) skeleton sleeping sweat text undead underswap undertale undertale_(series) 1:1 alternate_universe animated_skeleton bedroom blue_eyes blush bodily_fluids bone brother_(lore) brothers_(lore) comic dialogue english_text eyes_closed heart_symbol hug incest_(lore) licking lizheru male male/male monster not_furry papyrus_(underswap) papyrus_(undertale) sans_(underswap) sans_(undertale) sibling_(lore) skeleton sleeping soul soul_lick sweat text tongue tongue_out undead underswap undertale undertale_(series) 1:1 alternate_universe animated_skeleton bedroom blue_eyes blush bone brother_(lore) brothers_(lore) comic dialogue duo english_text erection genitals glowing glowing_genitalia glowing_penis humanoid_genitalia humanoid_penis incest_(lore) lizheru male male/male monster not_furry papyrus_(underswap) papyrus_(undertale) penis sans_(underswap) sans_(undertale) sibling_(lore) skeleton sleeping text undead underswap undertale undertale_(series) 1:1 alternate_universe animated_skeleton bedroom blue_eyes blush bone brother_(lore) brothers_(lore) comic dialogue duo english_text erection eyes_closed fellatio genitals glowing glowing_genitalia glowing_penis humanoid_genitalia humanoid_penis incest_(lore) licking lizheru male male/male monster not_furry oral papyrus_(underswap) papyrus_(undertale) penile penis rubbing sans_(underswap) sans_(undertale) sex sibling_(lore) skeleton sleeping sucking text tongue tongue_out undead underswap undertale undertale_(series) 1:1 alternate_universe animated_skeleton bedroom blue_eyes blush bone brother_(lore) brothers_(lore) comic dialogue duo english_text erection eyes_closed fellatio genitals glowing glowing_genitalia glowing_penis humanoid_genitalia humanoid_penis incest_(lore) lizheru male male/male monster not_furry oral papyrus_(underswap) papyrus_(undertale) penile penis rubbing sans_(underswap) sans_(undertale) sex sibling_(lore) skeleton sleeping sucking text undead underswap undertale undertale_(series) 1:1 alternate_universe animated_skeleton bedroom blue_eyes blush bone brother_(lore) brothers_(lore) comic dialogue duo english_text erection eyes_closed fellatio genitals glowing glowing_genitalia glowing_penis humanoid_genitalia humanoid_penis incest_(lore) licking lizheru male male/male monster not_furry oral papyrus_(underswap) papyrus_(undertale) penile penis rubbing sans_(underswap) sans_(undertale) sex sibling_(lore) skeleton sleeping sucking text tongue tongue_out undead underswap undertale undertale_(series) url 1:1 alternate_universe animated_skeleton bedroom blue_eyes blush bodily_fluids bone brother_(lore) brothers_(lore) comic cum cum_in_mouth cum_inside dialogue drooling duo english_text erection eyes_closed fellatio genital_fluids genitals glowing glowing_cum glowing_genitalia glowing_penis glowing_tongue humanoid_genitalia humanoid_penis incest_(lore) licking lizheru male male/male monster not_furry oral orgasm papyrus_(underswap) papyrus_(undertale) penile penis rubbing saliva sans_(underswap) sans_(undertale) sex sibling_(lore) skeleton sleeping sucking surprise tears text tongue tongue_out undead underswap undertale undertale_(series) unusual_bodily_fluids unusual_cum unusual_genital_fluids url 2d_animation 3:2 alternate_universe animated animated_skeleton blood blue_background blush bodily_fluids bone brother_(lore) brothers_(lore) duo english_text eyes_closed frame_by_frame hip_sway lizheru loop male monster nosebleed not_furry papyrus_(undertale) sans_(undertale) sibling_(lore) simple_background skeleton smile star teeth text undead underswap undertale undertale_(series) wide_eyed 1:1 animated_skeleton bed blue_penis blush bone comic dialogue ellipsis english_text erection exclamation_point furniture genitals glowing glowing_genitalia glowing_penis heart_symbol humanoid_genitalia humanoid_penis lizheru male not_furry one_eye_closed penis sans_(undertale) sitting skeleton solo text tongue undead undertale undertale_(series) url 1boy blue_eyes commentary_request grin hands_in_pockets heart hood hoodie humanization male_focus one_eye_closed sans_(undertale) shorts slippers smile solo teeth tldalrha undertale white_hair animated_skeleton anthro bone bovid caprine clothed clothing digital_media_(artwork) footwear fur goat hoodie jacket low_res male mammal pixel_(artwork) red_eyes robe sans_(undertale) shoes simple_background skeleton skull slippers smile sprite switchtale topwear toriel undead undertale undertale_(series) waffleman white_background white_body white_fur 1:1 alternate_universe animated_skeleton bed blue_penis blush bone brother_(lore) brothers_(lore) comic dialogue duo ellipsis english_text erection exclamation_point eyes_closed furniture genitals glowing glowing_genitalia glowing_penis heart_symbol humanoid lizheru male masturbation not_furry orgasm papyrus_(undertale) penile penile_masturbation penis sans_(undertale) sibling_(lore) sitting skeleton text tongue undead underswap undertale undertale_(series) 1:1 alternate_universe animated_skeleton bed blue_eyes blue_penis blue_tongue blush bodily_fluids bone brother_(lore) brothers_(lore) caught comic dialogue duo ellipsis english_text erection exclamation_point eyes_closed furniture genitals glowing glowing_genitalia glowing_penis glowing_tongue heart_symbol humanoid humanoid_genitalia humanoid_penis lizheru male masturbation not_furry orgasm papyrus_(undertale) penile penile_masturbation penis question_mark sans_(undertale) sibling_(lore) sitting skeleton sweat text tongue undead underswap undertale undertale_(series) url 1:1 alternate_universe animated_skeleton bed blue_eyes blush bodily_fluids bone comic dialogue ellipsis english_text eyes_closed furniture humanoid incest_(lore) kissing lizheru male male/male not_furry papyrus_(undertale) question_mark sans_(undertale) sitting skeleton tears text undead underswap undertale undertale_(series) 1:1 animated_skeleton bed blue_eyes blue_penis blush bodily_fluids bone comic dialogue duo ellipsis english_text erection furniture genitals glowing glowing_genitalia glowing_penis glowing_tongue heart_symbol humanoid humanoid_genitalia humanoid_penis incest_(lore) kissing lizheru male male/male not_furry orange_tongue papyrus_(undertale) penis question_mark sans_(undertale) sitting skeleton tears text tongue undead undertale undertale_(series) 1:1 ?! animated_skeleton bed blue_penis blush bodily_fluids bone comic dialogue duo ellipsis english_text erection exclamation_point eyes_closed furniture genitals glowing glowing_genitalia glowing_penis glowing_tongue handjob heart_symbol humanoid humanoid_genitalia humanoid_penis incest_(lore) kissing licking lizheru male male/male not_furry papyrus_(undertale) penile penis question_mark sans_(undertale) sex sitting skeleton sweat tears text tongue tongue_out undead undertale undertale_(series) 1:1 animated_skeleton bed blue_eyes blue_penis blush bodily_fluids bone comic cum dialogue duo ellipsis english_text erection furniture genital_fluids genitals glowing glowing_cum glowing_genitalia glowing_penis glowing_tongue heart_symbol humanoid humanoid_genitalia humanoid_penis incest_(lore) kissing licking lizheru male male/male not_furry papyrus_(undertale) penis question_mark sans_(undertale) sitting skeleton sweat tears text tongue tongue_out undead undertale undertale_(series) unusual_bodily_fluids unusual_cum unusual_genital_fluids 1:1 animated_skeleton bed blue_eyes blush bodily_fluids bone comic cum dialogue duo ellipsis english_text erection exclamation_point furniture genital_fluids genitals glowing glowing_genitalia glowing_penis heart_symbol humanoid humanoid_genitalia humanoid_penis incest_(lore) kissing lizheru male male/male not_furry papyrus_(undertale) penis presenting question_mark sans_(undertale) sitting skeleton tears text tongue undead undertale undertale_(series) 1:1 animated_skeleton bed blue_eyes blush bodily_fluids bone comic dialogue duo ellipsis english_text erection exclamation_point furniture genitals glowing glowing_genitalia glowing_penis heart_symbol humanoid humanoid_genitalia humanoid_penis incest_(lore) kissing lizheru lying male male/male not_furry papyrus_(underswap) papyrus_(undertale) penis question_mark sans_(underswap) sans_(undertale) sitting skeleton sweat tears text tongue undead undertale undertale_(series) 1:1 anal anal_penetration animated_skeleton bed blue_eyes blush bodily_fluids bone comic dialogue duo ellipsis english_text erection furniture genitals glowing glowing_genitalia glowing_penis heart_symbol humanoid_genitalia humanoid_penis incest_(lore) kissing lizheru lying male male/male male_penetrated male_penetrating male_penetrating_male not_furry papyrus_(underswap) papyrus_(undertale) penetration penis question_mark sans_(underswap) sans_(undertale) sex sitting skeletal_anus skeleton sweat tears text tongue undead undertale undertale_(series) aftertale animated_skeleton blood bodily_fluids bone clothed clothing comic dialogue english_text frisk_(undertale) geno_sans_(aftertale) human loverofpiggies male mammal not_furry sans_(undertale) scarf skeleton teeth text undead undertale undertale_(series) wounded aftertale animated_skeleton blood bodily_fluids bone clothed clothing comic dialogue english_text geno_sans_(aftertale) loverofpiggies male mammal not_furry sans_(undertale) scarf skeleton teeth text undead undertale undertale_(series) wounded animated_skeleton anthro birth bodily_fluids bone book boss_monster_(undertale) bovid breasts caprine ch clothed clothing comic digital_media_(artwork) duo elemental_creature english_text female female_penetrated flora_fauna flower flowey_the_flower frisk_(undertale) fur genital_fluids genitals hair hi_res horn human human_on_anthro internal interspecies livinlovindude male male/female male_penetrating male_penetrating_female mammal micro nude open_mouth penetration plant pregnant pussy red_eyes sans_(undertale) sex size_difference skeleton text toriel transformation tsunderplane unbirthing undead undertale undertale_(series) vaginal vaginal_fluids vaginal_penetration vore white_body white_fur young animated animated_skeleton anthro asgore_dreemurr blonde_hair bone boss_monster_(undertale) bottomwear bovid caprine christmas christmas_clothing christmas_headwear clothing costume duo fizzard_the_wizzard hair hat headgear headwear holidays horn jacket kissing kissing_bough long_ears male male/male mammal mature_anthro mature_male mistletoe pants plant red_bottomwear red_clothing red_topwear sans_(undertale) santa_claus santa_costume santa_hat short_playtime simple_background skeleton topwear undead undertale undertale_(series) white_background 4:3 animated_skeleton bone clothed clothing derp_eyes digital_media_(artwork) drugs hoodie humanoid jacket luigibros98 male marijuana monochrome not_furry sans_(undertale) skeleton skull smile smoke smoking solo topwear undead undertale undertale_(series) animated_skeleton anthro bone english_text female hi_res lagomorph leporid male mammal rabbit rabbit_shopkeeper sans_(undertale) skeleton text undead undertale undertale_(series) unknown_artist animasanimus animated_skeleton anthro arm_hair asgore_dreemurr back_hair balls beard belly belly_hair big_balls big_penis bodily_fluids body_hair bone boss_monster_(undertale) bovid brother_(lore) brothers_(lore) butt_hair caprine chest_hair clothed clothing crown cum cum_in_mouth cum_inside dialogue english_text erection facial_hair forearm_hair forearms foreskin fully_clothed genital_fluids genitals greyscale group group_sex hairy hairy_balls hairy_hands hairy_legs happy_trail headgear heart_symbol hi_res horn humanoid humanoid_genitalia humanoid_on_anthro humanoid_penis indirect_incest_(lore) interspecies leg_hair licking long_ears male male/male mammal mature_anthro mature_male monochrome navel nipple_fetish nipple_lick nipple_pinch nipple_play nipples nude overweight overweight_male papyrus_(undertale) partially_retracted_foreskin penis pinch pubes sans_(undertale) sex shoulder_hair sibling_(lore) skeleton stomach_hair text threesome tongue tongue_out trio undead undertale undertale_(series) absurd_res alternate_universe altertale animated_skeleton blush bone boss_monster_(undertale) bovid caprine clothed clothing duo english_text friisans hi_res hoodie male mammal robe sans_(altertale) sans_(undertale) skeleton skull smile text topwear toriel toriel_(altertale) undead undertale undertale_(series) aftertale animated_skeleton blood bodily_fluids bone clothed clothing comic dialogue english_text geno_sans_(aftertale) hesitant loverofpiggies male mammal not_furry sad sans_(undertale) scarf skeleton teeth text undead undertale undertale_(series) wounded aftertale animated_skeleton blood bodily_fluids bone clothed clothing comic dialogue english_text geno_sans_(aftertale) loverofpiggies male mammal not_furry sans_(undertale) scarf skeleton teeth text undead undertale undertale_(series) wounded animated_skeleton anthro balls bite biting_lip biting_own_lip blush bone bubble_kitten17 butt canid canine clothed clothing domestic_cat duo erection fangs feather_chibika felid feline felis female fox genitals glowing glowing_genitalia glowing_penis hand_on_butt hi_res humanoid_genitalia humanoid_penis male male/female mammal monochrome penis sans_(undertale) self_bite skeleton smile teeth tongue tongue_out undead undertale undertale_(series)