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alphys anthro barefoot bodily_fluids claws clothed clothing comic dialogue english_text eyewear feet female glasses hi_res marine nude scalie simple_background tears text undertaild undertale undertale_(series) undyne alligator alligatorid anal anal_penetration anthro blush bodily_fluids bratty_(undertale) breasts claws crocodilian crossgender dialogue dildo duo english_text erection eyewear felid female female_penetrating female_penetrating_male femboy foreskin ftm_crossgender genital_fluids genitals hair hand_on_butt hi_res male male/female male_penetrated mammal monochrome nude partially_retracted_foreskin penetration penis precum raised_tail reptile scalie sex sex_toy simple_background strapon tail text toe_claws tongue tongue_out toying_partner undertaild undertale undertale_(series) undyne white_background anthro asgore_dreemurr balls beard big_horn biped black_and_white book boss_monster_(undertale) bovid caprine casual_nudity chair chest_tuft chode claws container crown cup curved_horn daddy_mug dialogue english_text facial_hair fangs flaccid floppy_ears fluffy_ears foreskin furniture genitals headgear hi_res holding_container holding_cup holding_object horn humanoid_genitalia humanoid_penis long_ears male mammal mature_anthro mature_male monochrome nude overweight overweight_anthro overweight_male paws penis simple_background sitting small_penis solo teeth text text_on_mug thick_penis tuft undertaild undertale undertale_(series) white_background 2015 alphys animal_humanoid anthro bite blue_body blue_scales blue_skin blush bodily_fluids breast_grab breasts digital_media_(artwork) duo ear_frill english_text eyebrows eyes_closed eyewear female female/female fin fingering fish fish_humanoid frill_(anatomy) glasses grabbing_from_behind hair hand_on_breast heart_symbol hi_res humanoid humanoid_on_anthro inside lamp long_hair makeup marine marine_humanoid mascara membrane_(anatomy) membranous_frill moan neck_bite nude open_mouth overweight red_hair scales scalie sharp_teeth sweat teeth text tongue undertaild undertale undertale_(series) undyne yellow_body yellow_scales 2017 anthro bea_santello bratty_(undertale) catty_(undertale) cigarette clothed clothing crocodile crocodilian crocodylid crossover dialogue domestic_cat duo english_text felid feline felis female fur hair mae_borowski mammal night_in_the_woods reptile scalie speech_bubble text undertaild undertale undertale_(series) anthro clothed clothing dialogue duo english_text eye_patch eyewear female hair hi_res human macro mammal melee_weapon polearm spear text undertaild undertale undertale_(series) undyne undyne_the_undying weapon alphys anthro cactus clothed clothing dialogue english_text eye_patch eyewear female hair hi_res kaiju lizard macro navel plant reptile scalie teeth text tongue undertaild undertale undertale_(series) undyne alphys anthro black_and_white catty_(undertale) clothed clothing dialogue domestic_cat english_text eye_patch eyewear felid feline felis female fish fur glasses group hair hi_res lizard mammal marine melee_weapon monochrome polearm reptile scalie simple_background spear text undertaild undertale undertale_(series) undyne weapon 2017 alphys anthro armwear belly better_version_at_source big_breasts black_and_white blush breasts bustier clothing dialogue dominant dominant_female eyewear female glasses gloves handwear hi_res leash legwear lizard looking_at_viewer monochrome nipples nude panties pen_(artwork) reptile scalie slightly_chubby solo stockings talking_to_viewer teeth text traditional_media_(artwork) undertaild undertale undertale_(series) underwear 2017 anthro breasts casual_nudity colored female fish marine nipples non-mammal_breasts non-mammal_nipples nude pen_(artwork) simple_background solo teeth traditional_media_(artwork) undertaild undertale undertale_(series) undyne 2016 anthro axe bare_shoulders battle_axe better_version_at_source big_breasts black_nose blue_eyes breasts canid canine canis cleavage clothed clothing dogaressa domestic_dog feet female footwear fur hi_res mammal melee_weapon robe sandals sitting sky smile snow solo undertaild undertale undertale_(series) undressing weapon white_body white_fur 2016 anthro bare_shoulders big_breasts boss_monster_(undertale) bovid breasts butt caprine cleavage clothed clothing feet female fur heart_symbol hi_res horn kneeling licking licking_lips mammal mature_female nipples panties self_lick sky smile snow solo tongue tongue_out toriel undertaild undertale undertale_(series) underwear undressing white_body white_fur alphys anthro anus bent_over butt cross-popping_vein eyewear female genitals glasses hi_res lizard monochrome paper pussy raised_tail reptile scalie sketch solo tail undertaild undertale undertale_(series) vein alligator alligatorid anal anal_penetration anthro better_version_at_source bodily_fluids bratty_(undertale) breasts crocodilian cum dialogue dildo english_text erection eyewear felid female female_penetrating femboy genital_fluids genitals hair lizard male male/female male_penetrated mammal monochrome nude object_in_ass pegging penetration penis precum reptile scalie sex sex_toy sex_toy_in_ass sex_toy_insertion sex_toy_penetration simple_background strapon text toying_partner undertaild undertale undertale_(series) undyne white_background 2016 alternate_universe animal_humanoid blush boxers_(clothing) breasts claws clothing collar dominant dominant_female duo ear_fins english_text eye_patch eyewear fangs female female/female fin fish fish_humanoid genitals gills heart_boxers heart_clothing heart_symbol heart_underwear hi_res humanoid leash licking marine marine_humanoid monochrome pussy scalie scar selfcest shaking simple_background sketch square_crossover submissive submissive_female teeth text tongue tongue_out trembling underfell undertaild undertale undertale_(series) underwear undyne alternate_universe animal_humanoid blush breasts claws clothing collar dominant dominant_female duo ear_fins english_text eye_patch eyewear fangs female female/female fin fish fish_humanoid flat_chested gills hair hands_behind_back humanoid kneeling leash marine marine_humanoid monochrome panties reptile scalie scar selfcest simple_background square_crossover submissive submissive_female teeth text underfell undertaild undertale undertale_(series) underwear undyne 2016 alternate_universe animal_humanoid blush boxers_(clothing) breasts claws clothing collar crossgender dominant dominant_female duo ear_fins english_text erection eye_patch eyewear fangs female fin fish fish_humanoid genitals gills gynomorph gynomorph/female hair handjob heart_boxers heart_clothing heart_symbol heart_underwear humanoid intersex intersex/female kneeling leash licking magic marine marine_humanoid masturbation monochrome orgasm_denial panties penile penis reptile scalie scar selfcest sex square_crossover teeth text tongue tongue_out underfell undertaild undertale undertale_(series) underwear undyne 2017 anthro black_and_white black_eyes breasts female fish marine monochrome nipples non-mammal_breasts nude pen_(artwork) simple_background small_breasts solo teeth traditional_media_(artwork) undertaild undertale undertale_(series) undyne undyne_the_undying anthro boss_monster_(undertale) bovid breasts caprine colored curling_toes english_text eye_patch eyewear feet female fur genitals mammal nude pawpads pussy slightly_chubby solo text third-party_edit toriel undertaild undertale undertale_(series) url alphys alphys_(underswap) alternate_universe anthro blush bra breasts claws clothing clothing_aside collar colored dominant dominant_female duo english_text eyewear female female/female fingering fingering_partner genitals glasses leash licking lizard long_tongue non-mammal_breasts panties panties_aside pussy reptile scalie scar selfcest sex shaking simple_background slightly_chubby square_crossover submissive submissive_female teeth text toe_claws tongue tongue_out underswap undertaild undertale undertale_(series) underwear underwear_aside vaginal vaginal_fingering alphys anal anthro anus bed better_version_at_source blush breasts claws dialogue duo ear_fins english_text eye_patch eyes_closed eyewear fangs fantasizing female female/female fin fish furniture genitals glasses heart_eyes heart_symbol imagination imminent_sex lizard long_tongue marine moan monochrome oral orgasm pussy raised_tail reptile rimming scalie sex smile tail teeth text thought_bubble toe_claws tongue tongue_out undertaild undertale undertale_(series) undyne 2017 anthro black_and_white breasts casual_nudity female fish marine monochrome nipples non-mammal_breasts non-mammal_nipples nude pen_(artwork) simple_background solo teeth traditional_media_(artwork) undertaild undertale undertale_(series) undyne 2017 5_fingers alphys anthro black_and_white blush bodily_fluids breasts bust_portrait claws clothed clothing eyewear female fingers gesture glasses lizard looking_away monochrome nipples non-mammal_breasts non-mammal_nipples nude pen_(artwork) portrait reptile scalie simple_background slightly_chubby smile solo sweat teeth topless traditional_media_(artwork) undertaild undertale undertale_(series) waving white_background anthro asgore_dreemurr balls beard big_horn black_and_white book boss_monster_(undertale) bovid caprine casual_nudity chair chest_tuft claws container crown cup dialogue english_text facial_hair fangs flaccid fluffy_ears foreskin furniture genitals headgear hi_res holding_container holding_cup holding_object horn male mammal mature_male monochrome musclegut muscular nude paws penis simple_background sitting slightly_chubby small_penis solo teeth text thick_penis tuft undertaild undertale undertale_(series) white_background anthro asgore_dreemurr beard big_horn blush boss_monster_(undertale) bovid caprine crown dessert dialogue duo english_text facial_hair fangs flirting food headgear hi_res horn ice_cream lagomorph leporid long_ears male male/male mammal mature_anthro mature_male monochrome nicecream_man rabbit simple_background size_difference smile teeth text undertaild undertale undertale_(series) alphys anthro black_and_white clothed clothing dialogue duo english_text female fish hi_res lizard macro marine melee_weapon monochrome polearm reptile scalie size_difference source_request spear text undertaild undertale undertale_(series) undyne weapon anthro better_version_at_source black_and_white boss_monster_(undertale) bovid breasts caprine english_text female fur genitals mammal monochrome nude pussy slightly_chubby solo text toriel undertaild undertale undertale_(series) alphys anthro barefoot blush claws clothed clothing comic eyewear feet female glasses hi_res hug marine nude romantic romantic_ambiance scalie simple_background smile text undertaild undertale undertale_(series) undyne alphys anthro barefoot blush claws clothed clothing comic cuddling eyewear feet female glasses hi_res marine nude romantic romantic_ambiance scalie smile text undertaild undertale undertale_(series) undyne alphys anthro claws collar comic dialogue duo english_text eyewear female female/female glasses marine nude scalie text undertaild undertale undertale_(series) undyne alphys anthro barefoot bodily_fluids claws clothed clothing comic eyewear feet female glasses hi_res marine nude scalie simple_background tears text undertaild undertale undertale_(series) undyne alphys anthro barefoot bodily_fluids claws clothed clothing comic eyewear feet female glasses hi_res marine nude romantic romantic_ambiance scalie simple_background tears text undertaild undertale undertale_(series) undyne white_background alphys anthro barefoot blush claws clothed clothing comic eyewear feet female glasses hi_res hug marine nude romantic romantic_ambiance scalie text undertaild undertale undertale_(series) undyne after_sex alphys anthro bed blush bodily_fluids breasts breath claws collar comic dialogue duo ear_fins english_text eye_patch eyewear fangs feet female female/female fin fish furniture glasses hand_on_head kissing lizard lying marine monochrome nipples non-mammal_breasts non-mammal_nipples on_back panting paws reptile scalie smile sweat tail teeth text toe_claws toes tongue undertaild undertale undertale_(series) undyne 2016 alphys anthro areola big_breasts black_bars blue_nipples breasts caressing duo erect_nipples eye_patch eyewear female female/female female_pov first_person_view fish flat_chested from_front_position half-closed_eyes heart_symbol letterbox lizard lying marine missionary_position narrowed_eyes nipples non-mammal_breasts non-mammal_nipples nude on_back orange_nipples reptile scalie sex smile spread_legs spreading undertaild undertale undertale_(series) undyne anthro better_version_at_source black_and_white burger catty_(undertale) clothed clothing domestic_cat ear_piercing eating felid feline felis female food fur hair hi_res mammal monochrome monster piercing simple_background solo undertaild undertale undertale_(series) 2016 after_sex alphys anthro bed better_version_at_source black_and_white blush bodily_fluids breasts claws dialogue drooling duo ear_fins english_text eye_patch eyewear fangs feet female female/female fin fish furniture glasses hair lizard lying marine monochrome nipples non-mammal_breasts nude on_back paws raised_arm reptile saliva scalie small_breasts smile sweat teeth text toe_claws toes tongue undertaild undertale undertale_(series) undyne alphys anal anthro bratty_(undertale) breasts catty_(undertale) crossgender cunnilingus dialogue domestic_cat english_text eyewear felid feline felis female female/female fingering genitals glasses group group_sex gynomorph gynomorph/female hair intersex intersex/female lizard mammal nipples nude oral penis reptile scalie sex simple_background text threesome trio undertaild undertale undertale_(series) vaginal weight_difference white_background anthro barefoot biped boss_monster_(undertale) bovid breasts butt caprine clothing colored delta_rune_(emblem) feet female heart_symbol hi_res horn looking_at_viewer mammal naughty_face nipples nude panties pawpads paws seductive side_boob simple_background solo symbol third-party_edit tongue tongue_out toriel undertaild undertale undertale_(series) underwear 2016 anthro areola clothed clothing erect_nipples female fish flat_chested hi_res marine nipples non-mammal_nipples solo topless undertaild undertale undertale_(series) undressing undyne 2016 4_toes anthro axe bare_shoulders barefoot battle_axe big_breasts biped black_nose blue_eyes breasts canid canine canis claws cleavage clothed clothing colored dogaressa domestic_dog feet female footwear fur hi_res mammal melee_weapon robe sandals sitting sky smile snow solo toes undertaild undertale undertale_(series) undressing weapon white_body white_fur after_sex alphys anthro bed better_version_at_source blush bodily_fluids breasts breath claws collar comic dialogue duo ear_fins english_text eyes_closed eyewear fangs feet female female/female fin fish from_front_position furniture glasses hand_on_head hi_res hindpaw kissing lizard lying marine missionary_position monochrome non-mammal_breasts on_back open_mouth panting paws reptile scalie sex sex_toy sweat teeth text toe_claws toes tongue undertaild undertale undertale_(series) undyne