FURVERT!

2007 3_fingers 3_toes anthro anthrofied arm_grab artist_name biped black_body black_face black_fur black_inner_ear blue_body blue_ears blue_face blue_fur blue_tail blue_text_border breasts canid canine chest_spike countershade_fur countershade_torso countershading dark_pupils digitigrade eyelashes feet female fingers fur generation_4_pokemon genitals hand_behind_back hand_on_arm hand_spike light_spikes looking_at_viewer lucario mammal medium_breasts monotone_breasts monotone_tail multicolored_body multicolored_face multicolored_fur nintendo nipples pink_nipples pokeball pokemon pokemon_(species) pokemorph pupils red_eyes red_pupils small_waist snout solo spikes spikes_(anatomy) standard_pokeball standing tail text text_border toes two_tone_face vulva white_spikes y2k_(graphic_design) year yellow_body yellow_breasts yellow_countershading yellow_fur yellow_text yiffmasters

1:1 2008 abstract_background amy_(yiffmasters) anthro biped breasts brown_body brown_fur butt clothed clothing facial_markings female fur green_eyes hair head_markings looking_at_viewer looking_back markings panties pink_hair side_boob simple_background solo standing tail tail_markings topless underwear undressing unknown_species y2k_(graphic_design) yiffmasters

1:1 all_fours animal_genitalia animal_penis areola bent_over bestiality blonde_hair bodily_fluids breasts canid canine canine_genitalia canine_penis crocotta cum cum_drip cum_inside cum_on_ground cum_pool detailed_background doggystyle dripping duo erection female female_on_feral feral from_behind_position genital_fluids genitals hair hi_res human human_on_feral interspecies knot male male/female male_on_human mammal messy mythcomplex mythological_canine mythological_creature mythology night nipples nude one_eye_closed open_mouth outside penis puddle sex sky star starry_sky tail teeth

1:1 bestiality breasts castle cloud dragon duo erection female female_on_feral feral from_behind_position genitals hair human human_on_feral interspecies male male/female male_on_human mammal membrane_(anatomy) membranous_wings mythcomplex mythological_creature mythological_scalie mythology nude orange_hair outside penis red_body red_scales scales scalie sex sky tail wings

ambiguous_form blonde_hair breasts detailed_background duo female female_penetrated genitals hair human interspecies lizard male male/female male_penetrating male_penetrating_female mammal moon mythcomplex night nipples nude open_mouth penetration penile penile_penetration penis penis_in_vagina reptile scalie sex vaginal vaginal_penetration

1:1 abs anthro bikini breasts brown_body classic_doom clothed clothing demon doom_(series) female hell_knight hooves horn id_software microsoft muscular muscular_anthro muscular_female oniontrain pinup pose reverse_knees skimpy solo swimwear thick_thighs tight_clothing two-piece_swimsuit

1:1 anthro baron_of_hell big_breasts big_butt bikini breasts butt clothed clothing demon doom_(series) female hooves horn id_software looking_at_viewer looking_back microsoft muscular muscular_anthro muscular_female oniontrain overweight overweight_anthro overweight_female pink_body pose reverse_knees skimpy solo swimwear thick_thighs tight_clothing two-piece_swimsuit

anthro balls bandai_namco black_sclera breasts canid canine chest_tuft clothing corset digimon digimon_(species) dominant dominant_gynomorph dominant_intersex duo erection farorenightclaw feet foot_on_head fur genital_piercing genitals gynomorph gynomorph/male intersex intersex/male leash lingerie male mammal nipple_piercing nipples penis piercing preyfar renamon scrotum_piercing submissive submissive_male tail text topwear tuft url whip white_body white_fur yellow_body yellow_fur

anthro badger bdsm breast_squish breasts breasts_frottage claws collar dinah_(jmh) dominant dominant_female duo ear_piercing eyes_closed female female/female genitals hi_res james_m_hardiman leash licking mammal mephitid mustelid musteline nipple_piercing nipples nude onyx_(jmh) piercing simple_background skunk smile squish strapped_in submissive submissive_female tongue tongue_out vulva white_background

anthro biped breasts ear_piercing female fur kangaroo macropod mammal marsupial melee_weapon nduli nipples nude piercing polearm seductive sitting solo staff tail weapon

anthro arched_back areola assisted_exposure beak being_watched breasts butt canid canine clothing defeated disarmed dungeons_and_dragons erect_nipples female genitals group group_sex hands_behind_back hanging_breasts hasbro looking_at_another mammal melee_weapon mind_control nipples raji red_body restrained sex suspension sword tentacle_creature tentacles threesome trio undressing voyeur vulva weapon wizards_of_the_coast

2_toes anthro big_breasts big_butt breasts butt compression_artifacts demon digitigrade dungeons_and_dragons feet female genitals green_body hasbro hi_res jewelry kimli-garua looking_at_viewer looking_back nipples non-mammal_nipples nude pinup pose raji short_tail solo spikes tail tentacles toes vulva wide_hips wizards_of_the_coast

1999 anthro breasts female fingering fingering_self genitals jewelry mammal masturbation mustelid necklace nipples nude ollie_canal otter solo tail vaginal vaginal_masturbation vulva

4_toes anthro anthro_on_anthro barefoot breasts brown_background brown_body brown_fur colored_pencil_(artwork) duo eyes_closed feet female female_on_bottom female_penetrated from_front_position fur hindpaw leg_wrap low_res lutrai lying male male/female male_on_top male_penetrating male_penetrating_female mammal markings missionary_position moan mustelid nipples nude ollie_canal on_back on_bottom on_top open_mouth otter paws penetration plantigrade sex simple_background smile tail toes traditional_media_(artwork) tribal

2003 after_sex ahegao alternate_color anthro anus armor biped black_body black_fur black_hair blush bodily_fluids bracers breasts canid canine choker claws clitoris color_edit colored cum cum_in_vagina cum_inside dr_comet ear_tuft fangs female fox fur genital_fluids genitals grandfathered_content green_eyes hair hi_res inner_ear_fluff jewelry krystal_(star_fox) looking_pleasured mammal masturbation necklace nintendo nipples nude open_mouth pillow red_claws short_hair solo spread_legs spreading star_fox tail teeth text third-party_edit tongue tuft vaginal vaginal_masturbation vulva white_body white_fur

2004 ace_(ayukawataur) ace_(kacey) anthro anthro_on_anthro bed black_body black_fur blue_hair blush breasts brown_hair canid canine canis detailed_background duo eyes_closed female female/female fingering fur furniture hair hand_on_hip hands_above_head interspecies jackal kacey kristania long_hair lying mammal markings navel nipples nude on_back on_side open_mouth pillow ring_(marking) ringed_tail romantic romantic_couple sex small_breasts smile spread_legs spreading striped_markings striped_tail stripes tail tail_markings text url vaginal vaginal_fingering white_body white_fur yellow_body yellow_fur

anthro blush breasts canid canine clitoris duo erection eyes_closed female female_penetrated from_behind_position genitals male male/female male_penetrating male_penetrating_female mammal nipples nude penetration penile penile_penetration penis penis_in_vagina sex spread_legs spreading tail unknown_artist vaginal vaginal_penetration vulva

2003 anthro blonde_hair blue_eyes breasts cloud female front_view fur genitals hair kangaroo kee macropod mammal marsupial navel nipples nude outside pouch_(anatomy) presenting raised_leg sky solo spread_legs spread_vulva spreading tail vulva

anthro ayame_emaya breasts dasyurid dasyuromorph female fingering fingering_self mammal marsupial masturbation nipples nude quoll solo tail vaginal vaginal_masturbation

69_position anthro anthro_on_anthro ayame_emaya balls borzoi breasts canid canine canis cunnilingus domestic_dog duo erection female genitals humanoid_genitalia humanoid_penis hunting_dog male male/female mammal nude oral penis sex sighthound tail vaginal vulva

anthro anthro_on_anthro ayame_emaya bed breasts claws duo erect_nipples female female/female fingering fur furniture genitals greyscale hair hand_behind_back hyena long_hair mammal markings monochrome navel nipples nude pillow sex simple_background small_breasts smile spots spotted_body spotted_fur spotted_hyena spread_legs spreading tail toe_claws vaginal vaginal_fingering vulva white_background

anal anal_penetration anthro anthro_on_anthro ayame_emaya balls bisexual blonde_hair breasts brown_hair butt canid canine canis character_request dildo dobermann domestic_dog erection eyes_closed felid fellatio female female/female female_penetrated female_penetrating female_penetrating_female floppy_ears genitals glans group group_sex hair humanoid_genitalia humanoid_penis hyena interspecies intraspecies licking male male/female male/male male_penetrated male_penetrating male_penetrating_male male_rimming_female mammal navel nipples nude open_mouth oral oral_penetration orgy pantherine penetrating_while_rimmed penetration penile penis pinscher pointy_ears prick_ears raised_tail red_hair rimming rimming_while_fellated sex sex_toy short_hair spots spotted_hyena spread_butt spreading strapon strapon_sex stripes tail tiger tongue tongue_out toying_partner train_position vulva yellow_eyes

anthro anthro_on_anthro ayame_emaya breasts dragon duo erection female genitals male male/female membrane_(anatomy) membranous_wings mythological_creature mythological_scalie mythology nipples non-mammal_breasts non-mammal_nipples nude penis raised_tail scalie sex tail wings

2003 anthro anthro_on_anthro aquatic ayame_emaya barefoot blowhole breasts cetacean dolphin dorsal_fin double_penetration erection feet fellatio female fin flukes fully/fully_submerged fully_submerged genitals group group_sex licking looking_at_viewer male male/female mammal navel nipples nude oceanic_dolphin oral oral_penetration penetration penile penis raised_leg rostrum sex sex_in_water spitroast tail threesome tongue tongue_out toothed_whale trio underwater underwater_sex vaginal vaginal_penetration vulva water

anthro ayame_emaya blonde_hair breast_lick breast_play breasts cheetah dildo domestic_cat eyes_closed faceless_character faceless_female felid feline felis female female/female fingering fur genitals green_eyes group group_sex hair interspecies leopard leopard_spots licking licking_lips looking_at_viewer mammal markings masturbation melanistic navel nipples nude orange_hair orgy pantherine pawpads penetration self_lick sex sex_toy snow_leopard spots spotted_body spotted_fur spread_legs spread_vulva spreading striped_body striped_fur stripes tail tiger tongue tongue_out toying_partner vaginal vaginal_fingering vaginal_masturbation vulva

anthro anthro_on_anthro ass_up ayame_emaya breasts cunnilingus erection female gangbang genitals group group_sex humanoid_genitalia humanoid_penis hyena licking male male/female mammal nipples oral outside penis predator/prey raised_tail savanna sex side_boob sky spotted_hyena suid suine tail tongue tongue_out vaginal vulva warthog

anthro anthro_on_anthro ayame_emaya breasts clothed clothing double_penetration erection felid fellatio female from_behind_position genitals group group_sex kneeling looking_at_viewer male male/female mammal nipples nude oral oral_penetration pantherine partially_clothed penetration penile penis raised_leg sex simple_background spitroast tail threesome tiger trio vaginal vaginal_penetration vulva

anal anal_penetration anthro anthro_on_anthro ayame_emaya bisexual bisexual_sandwich bovid breasts caprine caught_in_the_act clothed clothing double_penetration erection felid fellatio female from_behind_position fully_clothed genitals goat group group_sex hooves interspecies licking male male/female male/male male_penetrated male_penetrating male_penetrating_male mammal nipples nude oral oral_penetration orgy penetration penile penile_penetration penis penis_in_ass penis_in_vagina sandwich_position sex spitroast tail tongue tongue_out vaginal vaginal_penetration vulva walk-in

1:1 2008 ambiguous_penetration anal andromorph_(lore) anthro anthro_on_anthro anthro_penetrated anthro_penetrating anthro_penetrating_anthro black_and_white bodily_fluids breasts cowgirl_position cum cum_inflation cum_inside digital_media_(artwork) duo erection excessive_cum excessive_genital_fluids eyes_closed felid foxywolf from_front_position genital_fluids genitals gynomorph gynomorph/male gynomorph_on_bottom gynomorph_penetrating gynomorph_penetrating_male inflation intersex intersex/male intersex_on_bottom intersex_penetrating intersex_penetrating_male kato line_art lion lying male male_on_top male_penetrated mammal monochrome nipples nude on_back on_bottom on_top open_mouth pantherine penetration penis plant pyanfar sex straddling tail tree wood

"honest"_john_foulfellow 2008 absolutely_everyone absurd_res ambiguous_gender amphibian animal_humanoid animated_skeleton anteater anthro anthrocon antlers aquatic armor asinus avian balcony bandai_namco bear beard beverage big_breasts bird black_body black_feathers black_fur black_hair blonde_hair blue_body blue_fur blue_hair bone bottomwear bovid bovine breasts brown_body brown_fur brown_hair canid canine canis caprine cheetah cheetos chester_cheetah clothing collar corvid costume crossed_arms crossover death_(personification) deer digimon digimon_(species) dinosaur disney disney's_pinocchio domestic_dog donkey dragon dromaeosaurid equid equine eyewear eyewear_on_head facial_hair feathers felid feline female fin fish fox frog fur fursuit generation_4_pokemon giant_panda glasses glasses_on_head goat goggles grandfathered_content green_body green_hair green_skin grey_body grey_fur grim_reaper group gull hair hard_hat hat headgear headwear helmet hi_res horn human humanoid lagomorph large_group lari larid leporid lion long_image lucario male mammal mascot melee_weapon mephitid mouse multicolored_body multicolored_fur murid murine mythological_creature mythological_scalie mythology nintendo orange_body orange_fur oscine pantherine pants parrot passerine photography_(artwork) pilosan pink_body pink_hair pink_skin pinocchio pirate pokemon pokemon_(species) polearm prehistoric_species procyonid purple_body purple_fur rabbit raccoon real red_body red_feathers red_fur reflection renamon reptile rodent saurischian scalie scythe skeleton skirt skunk striped_body striped_fur stripes suit tan_body tan_fur techwolf theropod tiger top_hat two_tone_body two_tone_fur undead unknown_species velociraptor weapon what white_body white_fur white_horn wide_image wings xenarthran

2:3 4_toes 5_fingers abstract_background anal anal_masturbation anal_penetration andromorph andromorph/female anthro anthro_on_anthro anus armbinder bdsm binder_(restraint) black_eyes black_nose blonde_hair blue_eyes bluevon bondage bondage_gear bound breasts brown_body brown_fur brown_tail canid canine chain cheek_tuft chest_tuft claws collar dildo dinosaur dominant dominant_female dromaeosaurid duo ears_back eye_contact eyebrows facial_tuft feet female female_penetrating fingers full-length_portrait fur furniture genitals gradient_background green_body green_skin green_tail grin hair hands_above_head happy hi_res intersex intersex/female interspecies kato kirisha looking_at_another mammal masturbation multicolored_tail nipple_fetish nipple_pinch nipple_play nipples non-mammal_breasts non-mammal_nipples object_in_ass one_eye_closed open_mouth penetration pinch pink_tongue pivoted_ears portrait prehistoric_species raised_leg reptile restraints saurischian scalie sex sex_toy sex_toy_in_ass sex_toy_in_vagina sex_toy_insertion side_boob simple_background smile spiked_collar spikes spiky_hair stool strapon strapon_in_pussy strapon_insertion strapon_sex stripes submissive submissive_andromorph submissive_intersex suspension tail teeth theropod toes tongue toying_partner toying_self tuft vaginal vaginal_penetration velociraptor vulva wearing_strapon yellow_tail

anthro anthro_on_anthro ayame_emaya breasts canid canine canis duo eyes_closed female from_front_position lying male male/female mammal missionary_position nipples nude on_back outside sex sketch spread_legs spreading tail tasteful wolf

anthro ayame_emaya bottomless breasts canid canine canis clothed clothing covered_breasts duo erection feet female fingering french_kissing genitals hindpaw kissing licking male male/female mammal nude paws penis tail tongue tongue_out vaginal vaginal_fingering vulva wolf

2004 ambiguous_penetration anthro areola ayame_emaya belly breasts brown_body brown_fur brown_hair brown_nose brown_tail circle_rug countershading domestic_cat duo feet felid feline felis female female_penetrated fire fireplace fluffy fluffy_tail fur hair half-closed_eyes inside male male/female male_penetrating male_penetrating_female mammal markings multicolored_tail narrowed_eyes nipples nude on_rug paws penetration pink_areola pink_nipples pink_nose red_rug rodent rug sciurid sex sitting smile striped_body striped_fur striped_markings striped_tail stripes tail tail_markings tan_body tan_breasts tan_countershading tan_fur tan_tail tree_squirrel two_tone_tail vase white_belly white_body white_fur

anthro anthro_on_anthro ayame_emaya bovid breasts caprine duo erection female female_penetrated genitals hyena male male/female male_penetrating male_penetrating_female mammal nude penetration penile penile_penetration penis penis_in_vagina sex spotted_hyena standing standing_sex vaginal vaginal_penetration vulva

anthro ayame_emaya barbell_piercing breasts canid canine canis coke_(ayame_emaya) cropped_ears dobermann domestic_dog ear_piercing ear_ring eyebrow_piercing eyebrow_ring facial_piercing female genitals mammal multiple_piercings nipple_barbell nipple_piercing nipples nude piercing pinscher presenting ring_piercing solo spread_vulva spreading vulva

69_position anal anal_penetration anthro anthro_on_anthro anthro_penetrated anthro_penetrating anthro_penetrating_anthro asinus ass_up ayame_emaya bent_over biped bisexual breasts cunnilingus donkey dragon equid equine erection european_mythology eyewear female fur genitals glasses group group_sex hair horn hyena interspecies licking male male/female male/male male_penetrated male_penetrating male_penetrating_male mammal mutual_oral mythological_creature mythological_equine mythological_scalie mythology nude oral orgy penetration penis raised_tail rimming rimming_while_penetrated scalie sex spotted_hyena tail tongue tongue_out traditional_media_(artwork) train_position unicorn vaginal western_dragon

accessory amy_rose anthro anthrofied areola big_breasts big_eyes blush bodily_fluids breasts clothing countershade_arms countershade_face countershade_torso countershading cum cum_covered cum_on_body cum_on_face eulipotyphlan excessive_cum excessive_genital_fluids eyelashes female genital_fluids gloves gloves_only green_eyes hair hair_accessory hairband handwear handwear_only hedgehog lactating mammal messy mostly_nude multicolored_body multicolored_face multicolored_skin navel nipples nude open_mouth open_smile pink_body pink_hair pink_skin portrait pose sega short_hair sindoll smile solo sonic_the_hedgehog_(series) standing tan_body tan_countershading tan_skin thick_thighs three-quarter_portrait toony two_tone_body two_tone_face two_tone_skin uneven_eyes white_clothing white_gloves white_handwear wide_hipped_female wide_hips

anthro ayame_emaya breasts cloud detailed_background duo erection fangs felid female forest genitals hooves humanoid_genitalia humanoid_penis male male/female mammal nature nipples nude outside penis plant prehistoric_species raised_leg saber-toothed_tiger sabertooth_(anatomy) sex sky tail teeth tree vulva

anthro anthro_on_anthro ayame_emaya balls breasts dragon duo equid equine erection eyes_closed feathered_wings feathers female female_penetrated from_behind_position genitals hooves horn interspecies male male/female male_penetrating male_penetrating_female mammal membrane_(anatomy) membranous_wings mythological_creature mythological_equine mythological_scalie mythology nipples nude penetration penile penile_penetration penis penis_in_vagina scalie sex spread_legs spreading tail unicorn vaginal vaginal_penetration vulva winged_unicorn wings

anal anal_penetration anthro ayame_emaya ball_gag balls bdsm black_body black_fur bondage bound breasts brown_body brown_fur canid canine collar cuff_(restraint) cunnilingus dipstick_tail dominant dominant_female erection female female/female fennec_fox fox fur gag gagged gay/lesbian_parallel_sex genitals grey_nipples group handcuffs humanoid_genitalia humanoid_penis leash male male/male male_penetrated male_penetrating male_penetrating_male mammal markings mephitid metal_cuffs nipples nude oral orange_body orange_fur penetration penis restraints sex shackles skunk submissive submissive_male tail tail_markings true_fox vaginal white_body white_fur

2002 anthro anthro_on_anthro armbinder ayame_emaya bdsm binder_(restraint) bondage bondage_gear bound breasts canid canine canis collar dominant dominant_female duo erection female female_penetrated from_behind_position genitals hands_behind_back leash male male/female male_penetrating male_penetrating_female mammal nipples nude penetration penile penile_penetration penis penis_in_vagina procyonid raccoon restraints rope sex stake submissive submissive_male tail vaginal vaginal_penetration vulva wolf

ankh anthro armwear ayame_emaya breasts canid canine canis choker claws clitoris clitoris_piercing clitoris_ring clothing coke_(ayame_emaya) dobermann domestic_dog duo ear_piercing ear_ring elbow_gloves erect_nipples eyebrow_piercing eyebrow_ring facial_piercing female female/female genital_piercing genitals gloves hair half-closed_eyes handwear imminent_tribadism intraspecies jewelry mammal multicolored_hair multiple_piercings narrowed_eyes navel navel_piercing navel_ring necklace nipple_piercing nipple_ring nipples nude piercing pinscher pointy_ears prick_ears ring_piercing sex small_breasts smile spread_legs spreading tail tattoo toe_claws vaginal vulva vulva_piercing vulva_ring

anal anal_masturbation anal_penetration anthro avian ayame_emaya ball_gag bdsm beak bed bed_bondage bird black_body black_feathers black_skin bondage bound breasts cacatua cockatoo dildo dominant dominant_male duo erection eyewear feathered_wings feathers female fingering furniture gag gagged genitals glasses gryphon inside lying male male/female masturbation mythological_avian mythological_creature mythology nipples non-mammal_breasts non-mammal_nipples nude on_back on_bed parrot penetration penis sex_toy spread_eagle spread_legs spread_vulva spreading submissive submissive_female tail toying_self umbrella_cockatoo vulva white_body white_feathers white_skin wings

anal anal_penetration anthro anthro_penetrating anthro_penetrating_female anthro_penetrating_human anthro_top anus april_o'neil big_breasts biped black_rhinoceros blush breasts camera clothed clothing duo erection female female_on_anthro female_penetrated genitals hair horn huge_breasts human human_focus human_on_anthro human_penetrated interspecies jumpsuit kanevex lips male male/female male_on_human male_penetrating male_penetrating_female male_penetrating_human mammal nipples not_furry_focus open_clothing penetration penile penile_penetration penis penis_in_ass pubes red_hair rhinoceros rocksteady sex spread_legs spreading teenage_mutant_ninja_turtles teenage_mutant_ninja_turtles_(1987) vulva wide_hips

anthro anthro_on_anthro ayame_emaya bed big_breasts bracelet breasts canid canine canis claws dildo dobermann domestic_dog duo ear_piercing feet female female/female female_penetrated female_penetrating female_penetrating_female floppy_ears flower from_front_position furniture genitals half-closed_eyes hands_behind_head hindpaw hunting_dog inside jewelry layla_(ayame_emaya) licking licking_lips lying mammal missionary_position narrowed_eyes navel necklace nipple_piercing nipples nude on_back on_bed pawpads paws penetration piercing pinscher plant pointy_ears prick_ears raised_arm rose_(flower) saluki self_lick sex sex_toy sighthound spread_legs spreading strapon strapon_sex tail toe_claws tongue tongue_out toying_partner vaginal vaginal_penetration vulva

anthro ayame_emaya breasts clitoris cunnilingus duo eyes_closed felid female female/female genitals licking macro mammal nipples nude oral pantherine pink_nose sex spread_legs spreading tail tiger tongue tongue_out vaginal vulva

2003 anthro anthro_on_anthro ayame_emaya breasts detailed_background duo erection felid feline female female_penetrated forest genitals humanoid_genitalia humanoid_penis interspecies male male/female male_penetrating male_penetrating_female mammal nature nude outside penetration penile penile_penetration penis penis_in_vagina plant procyonid raccoon serval sex tail traditional_media_(artwork) tree vaginal vaginal_penetration vulva

antelope anthro anthro_on_anthro ayame_emaya balls bovid breast_grab breasts duo erection fajera female female_penetrated french_kissing from_behind_position genitals grabbing_from_behind grazing_antelope hand_on_breast hooves kissing licking male male/female male_penetrating male_penetrating_female mammal nipples nude oryx penetration penile penile_penetration penis penis_in_vagina raised_leg sex spread_legs spreading tail tail_tuft tongue tongue_out tuft vaginal vaginal_penetration vulva

2003 anthro anthro_on_anthro ayame_emaya bell bisexual breasts canid canine collar cunnilingus eyes_closed felid female from_front_position genitals group group_sex male male/female male/male male_penetrated male_penetrating male_penetrating_male mammal mastery_position membrane_(anatomy) membranous_wings mmf_threesome murid murine nipples nude oral penetration penis rat rodent sex signature simple_background tail threesome tongue tongue_out trio vaginal vulva white_background wings