Search

(Supports wildcard *)
Tags

2019 3:4 absurd_res amphibian anal anal_penetration animal_genitalia balls blush bodily_fluids butt cum cum_in_ass cum_in_balls cum_inside cum_while_penetrated drooling duo feet froakie generation_1_pokemon generation_6_pokemon genital_fluids genitals handjob_while_penetrating hi_res humanoid_genitalia humanoid_hands humanoid_penis looking_pleasured male male/male male_penetrated male_penetrating mammal nintendo orgasm penetration penile penis pikachu pokemon pokemon_(species) rodent saliva spread_legs spreading string sweat tapering_penis winick-lim 2024 anthro bear belly black_nose blue_eyes canid canine canis clothing cover domestic_dog duo hug hugging_from_behind humanoid_hands itachi_guma japanese_text kemono male mammal navel one_eye_closed overweight overweight_male polar_bear shirt text topwear underwear ursine wink 2024 anthro bathtub bear belly biped blush eyes_closed feet hi_res humanoid_hands kemono mammal panda_po solo towel 2020 4:5 5_claws alarm_clock anthro areola arexo balls beard bed bed_sheet bedding bedroom bedside_table belly big_balls big_belly big_penis biped black_claws body_hair bovid bovine brown_body brown_fur claws clock digital_drawing_(artwork) digital_media_(artwork) erection european_mythology eyebrows eyes_closed facial_hair facial_piercing finger_claws fur furniture genital_piercing genitals glans greek_mythology hair hi_res huge_balls huge_penis humanoid_genitalia humanoid_hands humanoid_penis lamp male mammal minotaur muscular muscular_anthro muscular_male muscular_thighs mythology nipple_piercing nipple_ring nipples nose_piercing nose_ring on_bed orange_hair penis penis_piercing piercing pillow pubes ring_piercing sleeping solo 2020 5_fingers absurd_res anthro antlers areola balls beach beach_towel belly big_balls big_belly big_moobs big_penis biped day deer digital_drawing_(artwork) digital_media_(artwork) erection fingers foreskin fur genitals glans hi_res holding_glass holding_object hooves horn humanoid_genitalia humanoid_hands humanoid_penis lying male mammal moobs navel nipples nude obese obese_anthro obese_male on_back orange_body orange_fur outside overweight overweight_anthro overweight_male penis purple_eyes ray_the_buck sand sea sky solo thick_thighs tj_tiger towel water 2019 3:4 absurd_res amphibian anal anal_penetration animal_genitalia balls blush bodily_fluids butt cum cum_in_ass cum_in_balls cum_inside cum_while_penetrated drooling duo feet froakie generation_1_pokemon generation_6_pokemon genital_fluids genitals handjob_while_penetrating hi_res humanoid_genitalia humanoid_hands humanoid_penis looking_pleasured male male/male male_penetrated male_penetrating mammal nintendo orgasm penetration penile penis pikachu pokemon pokemon_(species) rodent saliva spread_legs spreading string sweat tapering_penis winick-lim 2024 alligator alligatorid anthro bear black_nose bottomwear brok_(brok_the_investigator) brok_the_investigator brown_body clothing comic cowcat_games crocodilian dialogue english_text green_body group hat headgear headwear hi_res humanoid_hands kangaroo macropod male mammal marsupial overalls overweight overweight_male pants punch r.j._(brok_the_investigator) reptile scalie shirt sin_silver text thebeart topwear 2024 absurd_res anthro belly boar_on_board brown_body bulge clothing eyes_closed hi_res humanoid_hands male mammal moobs mustelid navel nipples otter overweight overweight_male rudderbutts solo star text underwear 2024 anthro balls blush duo erection generation_5_pokemon genitals hi_res humanoid_genitalia humanoid_hands humanoid_penis kemono male nintendo nipples orange_body penis pignite pokemon pokemon_(species) sitting solo_focus takataka 2024 anthro arufina_w bear belly black_nose clothing flaccid genitals hi_res humanoid_hands kemono male mammal micropenis moobs navel nipples one_eye_closed overweight overweight_male penis polar_bear pubes small_penis solo underwear ursine white_body wink 2024 anthro bear belly big_belly brown_body eating eyewear food glasses humanoid_hands kemono kuremura62213 lifewonders male mammal overweight overweight_male sitting solo surprised tokyo_afterschool_summoners volos_(tas) 2020 4:5 5_claws alarm_clock anthro areola arexo balls beard bed bed_sheet bedding bedroom bedside_table belly big_balls big_belly big_penis biped black_claws body_hair bovid bovine brown_body brown_fur claws clock digital_drawing_(artwork) digital_media_(artwork) erection european_mythology eyebrows eyes_closed facial_hair facial_piercing finger_claws fur furniture genital_piercing genitals glans greek_mythology hair hi_res huge_balls huge_penis humanoid_genitalia humanoid_hands humanoid_penis lamp male mammal minotaur muscular muscular_anthro muscular_male muscular_thighs mythology nipple_piercing nipple_ring nipples nose_piercing nose_ring on_bed orange_hair penis penis_piercing piercing pillow pubes ring_piercing sleeping solo 2020 5_fingers absurd_res anthro antlers areola balls beach beach_towel belly big_balls big_belly big_moobs big_penis biped day deer digital_drawing_(artwork) digital_media_(artwork) erection fingers foreskin fur genitals glans hi_res holding_glass holding_object hooves horn humanoid_genitalia humanoid_hands humanoid_penis lying male mammal moobs navel nipples nude obese obese_anthro obese_male on_back orange_body orange_fur outside overweight overweight_anthro overweight_male penis purple_eyes ray_the_buck sand sea sky solo thick_thighs tj_tiger towel water 2019 3:4 absurd_res amphibian anal anal_penetration animal_genitalia balls blush bodily_fluids butt cum cum_in_ass cum_in_balls cum_inside cum_while_penetrated drooling duo feet froakie generation_1_pokemon generation_6_pokemon genital_fluids genitals handjob_while_penetrating hi_res humanoid_genitalia humanoid_hands humanoid_penis looking_pleasured male male/male male_penetrated male_penetrating mammal nintendo orgasm penetration penile penis pikachu pokemon pokemon_(species) rodent saliva spread_legs spreading string sweat tapering_penis winick-lim 2024 3d_(artwork) 5_fingers ankle_grab anthro balls bear being_watched big_breasts black_nose bottomless bottomless_anthro bottomless_male breasts cigarette claws clothed clothed_anthro clothed_female clothed_male clothing dialogue digital_media_(artwork) english_text fangs feet female finger_claws finger_in_mouth fingers fur gangbang genitals group group_sex hair hair_over_eye hi_res holding_cigarette holding_object humanoid_feet humanoid_hands interspecies jacket leather leather_clothing leather_topwear leather_vest leg_grab looking_at_another male male/female mammal mature_anthro mature_female motorcycle_helmet murid murine nataliya_(petruz) nipples nude nude_anthro nude_female one_eye_obstructed penis petruz_(copyright) plantigrade polar_bear rat rat_(petruz) reindeerviking rodent sex shirt shizu_(petruz) source_filmmaker_(artwork) speech_bubble teeth text thought_bubble topwear ursine vest white_body white_fur white_hair 1:1 2024 4_toes 5_fingers amniotic_fluid anthro areola belly big_belly big_breasts bird_dog birth bodily_fluids breasts brown_areola brown_nipples brown_nose canid canine canis crowning domestic_dog fangs feet female fingers fur genital_fluids genitals golden_retriever hi_res hindpaw humanoid_hands hunting_dog kneeling live_birth mammal navel nipples nude nude_anthro nude_female outie_navel paws pregnant pregnant_anthro pregnant_female pussy ransim retriever rhea_(ransim) solo spread_legs spreading tan_body tan_fur teeth toes vaginal_birth 2020 4:5 5_claws alarm_clock anthro areola arexo balls beard bed bed_sheet bedding bedroom bedside_table belly big_balls big_belly big_penis biped black_claws body_hair bovid bovine brown_body brown_fur claws clock digital_drawing_(artwork) digital_media_(artwork) erection european_mythology eyebrows eyes_closed facial_hair facial_piercing finger_claws fur furniture genital_piercing genitals glans greek_mythology hair hi_res huge_balls huge_penis humanoid_genitalia humanoid_hands humanoid_penis lamp male mammal minotaur muscular muscular_anthro muscular_male muscular_thighs mythology nipple_piercing nipple_ring nipples nose_piercing nose_ring on_bed orange_hair penis penis_piercing piercing pillow pubes ring_piercing sleeping solo 2020 5_fingers absurd_res anthro antlers areola balls beach beach_towel belly big_balls big_belly big_moobs big_penis biped day deer digital_drawing_(artwork) digital_media_(artwork) erection fingers foreskin fur genitals glans hi_res holding_glass holding_object hooves horn humanoid_genitalia humanoid_hands humanoid_penis lying male mammal moobs navel nipples nude obese obese_anthro obese_male on_back orange_body orange_fur outside overweight overweight_anthro overweight_male penis purple_eyes ray_the_buck sand sea sky solo thick_thighs tj_tiger towel water 2019 3:4 absurd_res amphibian anal anal_penetration animal_genitalia balls blush bodily_fluids butt cum cum_in_ass cum_in_balls cum_inside cum_while_penetrated drooling duo feet froakie generation_1_pokemon generation_6_pokemon genital_fluids genitals handjob_while_penetrating hi_res humanoid_genitalia humanoid_hands humanoid_penis looking_pleasured male male/male male_penetrated male_penetrating mammal nintendo orgasm penetration penile penis pikachu pokemon pokemon_(species) rodent saliva spread_legs spreading string sweat tapering_penis winick-lim 2020 4:5 5_claws alarm_clock anthro areola arexo balls beard bed bed_sheet bedding bedroom bedside_table belly big_balls big_belly big_penis biped black_claws body_hair bovid bovine brown_body brown_fur claws clock digital_drawing_(artwork) digital_media_(artwork) erection european_mythology eyebrows eyes_closed facial_hair facial_piercing finger_claws fur furniture genital_piercing genitals glans greek_mythology hair hi_res huge_balls huge_penis humanoid_genitalia humanoid_hands humanoid_penis lamp male mammal minotaur muscular muscular_anthro muscular_male muscular_thighs mythology nipple_piercing nipple_ring nipples nose_piercing nose_ring on_bed orange_hair penis penis_piercing piercing pillow pubes ring_piercing sleeping solo 2020 5_fingers absurd_res anthro antlers areola balls beach beach_towel belly big_balls big_belly big_moobs big_penis biped day deer digital_drawing_(artwork) digital_media_(artwork) erection fingers foreskin fur genitals glans hi_res holding_glass holding_object hooves horn humanoid_genitalia humanoid_hands humanoid_penis lying male mammal moobs navel nipples nude obese obese_anthro obese_male on_back orange_body orange_fur outside overweight overweight_anthro overweight_male penis purple_eyes ray_the_buck sand sea sky solo thick_thighs tj_tiger towel water 2019 3:4 absurd_res amphibian anal anal_penetration animal_genitalia balls blush bodily_fluids butt cum cum_in_ass cum_in_balls cum_inside cum_while_penetrated drooling duo feet froakie generation_1_pokemon generation_6_pokemon genital_fluids genitals handjob_while_penetrating hi_res humanoid_genitalia humanoid_hands humanoid_penis looking_pleasured male male/male male_penetrated male_penetrating mammal nintendo orgasm penetration penile penis pikachu pokemon pokemon_(species) rodent saliva spread_legs spreading string sweat tapering_penis winick-lim 2020 4:5 5_claws alarm_clock anthro areola arexo balls beard bed bed_sheet bedding bedroom bedside_table belly big_balls big_belly big_penis biped black_claws body_hair bovid bovine brown_body brown_fur claws clock digital_drawing_(artwork) digital_media_(artwork) erection european_mythology eyebrows eyes_closed facial_hair facial_piercing finger_claws fur furniture genital_piercing genitals glans greek_mythology hair hi_res huge_balls huge_penis humanoid_genitalia humanoid_hands humanoid_penis lamp male mammal minotaur muscular muscular_anthro muscular_male muscular_thighs mythology nipple_piercing nipple_ring nipples nose_piercing nose_ring on_bed orange_hair penis penis_piercing piercing pillow pubes ring_piercing sleeping solo 2020 5_fingers absurd_res anthro antlers areola balls beach beach_towel belly big_balls big_belly big_moobs big_penis biped day deer digital_drawing_(artwork) digital_media_(artwork) erection fingers foreskin fur genitals glans hi_res holding_glass holding_object hooves horn humanoid_genitalia humanoid_hands humanoid_penis lying male mammal moobs navel nipples nude obese obese_anthro obese_male on_back orange_body orange_fur outside overweight overweight_anthro overweight_male penis purple_eyes ray_the_buck sand sea sky solo thick_thighs tj_tiger towel water 2019 3:4 absurd_res amphibian anal anal_penetration animal_genitalia balls blush bodily_fluids butt cum cum_in_ass cum_in_balls cum_inside cum_while_penetrated drooling duo feet froakie generation_1_pokemon generation_6_pokemon genital_fluids genitals handjob_while_penetrating hi_res humanoid_genitalia humanoid_hands humanoid_penis looking_pleasured male male/male male_penetrated male_penetrating mammal nintendo orgasm penetration penile penis pikachu pokemon pokemon_(species) rodent saliva spread_legs spreading string sweat tapering_penis winick-lim 2020 4:5 5_claws alarm_clock anthro areola arexo balls beard bed bed_sheet bedding bedroom bedside_table belly big_balls big_belly big_penis biped black_claws body_hair bovid bovine brown_body brown_fur claws clock digital_drawing_(artwork) digital_media_(artwork) erection european_mythology eyebrows eyes_closed facial_hair facial_piercing finger_claws fur furniture genital_piercing genitals glans greek_mythology hair hi_res huge_balls huge_penis humanoid_genitalia humanoid_hands humanoid_penis lamp male mammal minotaur muscular muscular_anthro muscular_male muscular_thighs mythology nipple_piercing nipple_ring nipples nose_piercing nose_ring on_bed orange_hair penis penis_piercing piercing pillow pubes ring_piercing sleeping solo 2020 5_fingers absurd_res anthro antlers areola balls beach beach_towel belly big_balls big_belly big_moobs big_penis biped day deer digital_drawing_(artwork) digital_media_(artwork) erection fingers foreskin fur genitals glans hi_res holding_glass holding_object hooves horn humanoid_genitalia humanoid_hands humanoid_penis lying male mammal moobs navel nipples nude obese obese_anthro obese_male on_back orange_body orange_fur outside overweight overweight_anthro overweight_male penis purple_eyes ray_the_buck sand sea sky solo thick_thighs tj_tiger towel water 2019 3:4 absurd_res amphibian anal anal_penetration animal_genitalia balls blush bodily_fluids butt cum cum_in_ass cum_in_balls cum_inside cum_while_penetrated drooling duo feet froakie generation_1_pokemon generation_6_pokemon genital_fluids genitals handjob_while_penetrating hi_res humanoid_genitalia humanoid_hands humanoid_penis looking_pleasured male male/male male_penetrated male_penetrating mammal nintendo orgasm penetration penile penis pikachu pokemon pokemon_(species) rodent saliva spread_legs spreading string sweat tapering_penis winick-lim 2024 5_fingers absurd_res anthro arm_tuft artist_name avery_(averycoolbat) back_wings bat big_breasts bikini black_bikini black_clothing black_outline black_swimwear blue_nose blush_marks border breasts chest_tuft clothed clothing countershade_torso countershading curvy_figure cute_fangs day detailed_background digital_media_(artwork) elbow_tuft eyebrows eyelashes female fence fingers fur grass green_eyes happy heart_(marking) hi_res hourglass_figure huge_breasts humanoid_hands justbirb krita_(artwork) light looking_at_viewer mammal markings membrane_(anatomy) membranous_wings midriff navel open_mouth open_smile orange_tongue outline outside partially_submerged plant pool portrait purple_body purple_fur raised_arm short_tail shoulder_tuft side-tie_bikini sky small_waist smile snout solo standing string_bikini sunlight swimwear tail thick_thighs three-quarter_portrait three-quarter_view tongue tree tuft wet white_body white_border white_fur wide_hips wings wiping_forehead 2020 4:5 5_claws alarm_clock anthro areola arexo balls beard bed bed_sheet bedding bedroom bedside_table belly big_balls big_belly big_penis biped black_claws body_hair bovid bovine brown_body brown_fur claws clock digital_drawing_(artwork) digital_media_(artwork) erection european_mythology eyebrows eyes_closed facial_hair facial_piercing finger_claws fur furniture genital_piercing genitals glans greek_mythology hair hi_res huge_balls huge_penis humanoid_genitalia humanoid_hands humanoid_penis lamp male mammal minotaur muscular muscular_anthro muscular_male muscular_thighs mythology nipple_piercing nipple_ring nipples nose_piercing nose_ring on_bed orange_hair penis penis_piercing piercing pillow pubes ring_piercing sleeping solo 2020 5_fingers absurd_res anthro antlers areola balls beach beach_towel belly big_balls big_belly big_moobs big_penis biped day deer digital_drawing_(artwork) digital_media_(artwork) erection fingers foreskin fur genitals glans hi_res holding_glass holding_object hooves horn humanoid_genitalia humanoid_hands humanoid_penis lying male mammal moobs navel nipples nude obese obese_anthro obese_male on_back orange_body orange_fur outside overweight overweight_anthro overweight_male penis purple_eyes ray_the_buck sand sea sky solo thick_thighs tj_tiger towel water 2019 3:4 absurd_res amphibian anal anal_penetration animal_genitalia balls blush bodily_fluids butt cum cum_in_ass cum_in_balls cum_inside cum_while_penetrated drooling duo feet froakie generation_1_pokemon generation_6_pokemon genital_fluids genitals handjob_while_penetrating hi_res humanoid_genitalia humanoid_hands humanoid_penis looking_pleasured male male/male male_penetrated male_penetrating mammal nintendo orgasm penetration penile penis pikachu pokemon pokemon_(species) rodent saliva spread_legs spreading string sweat tapering_penis winick-lim 2020 4:5 5_claws alarm_clock anthro areola arexo balls beard bed bed_sheet bedding bedroom bedside_table belly big_balls big_belly big_penis biped black_claws body_hair bovid bovine brown_body brown_fur claws clock digital_drawing_(artwork) digital_media_(artwork) erection european_mythology eyebrows eyes_closed facial_hair facial_piercing finger_claws fur furniture genital_piercing genitals glans greek_mythology hair hi_res huge_balls huge_penis humanoid_genitalia humanoid_hands humanoid_penis lamp male mammal minotaur muscular muscular_anthro muscular_male muscular_thighs mythology nipple_piercing nipple_ring nipples nose_piercing nose_ring on_bed orange_hair penis penis_piercing piercing pillow pubes ring_piercing sleeping solo 2020 5_fingers absurd_res anthro antlers areola balls beach beach_towel belly big_balls big_belly big_moobs big_penis biped day deer digital_drawing_(artwork) digital_media_(artwork) erection fingers foreskin fur genitals glans hi_res holding_glass holding_object hooves horn humanoid_genitalia humanoid_hands humanoid_penis lying male mammal moobs navel nipples nude obese obese_anthro obese_male on_back orange_body orange_fur outside overweight overweight_anthro overweight_male penis purple_eyes ray_the_buck sand sea sky solo thick_thighs tj_tiger towel water 2019 3:4 absurd_res amphibian anal anal_penetration animal_genitalia balls blush bodily_fluids butt cum cum_in_ass cum_in_balls cum_inside cum_while_penetrated drooling duo feet froakie generation_1_pokemon generation_6_pokemon genital_fluids genitals handjob_while_penetrating hi_res humanoid_genitalia humanoid_hands humanoid_penis looking_pleasured male male/male male_penetrated male_penetrating mammal nintendo orgasm penetration penile penis pikachu pokemon pokemon_(species) rodent saliva spread_legs spreading string sweat tapering_penis winick-lim 2024 anal anal_fingering anal_penetration anal_wink animated anthro anus back_muscles backsack balls barazoku bear bed big_butt bodily_fluids breath brown_bear brown_body brown_fur bubble_butt butt butt_grab butt_massage buttplug buttplug_in_ass buttplug_insertion circumcised circumcision_scar comic_panel cutaway digital_media_(artwork) disembodied_hand dripping duo dutch_angle erection expression_cutaway eyebrows eyes_closed fingering fingers from_behind_position fur furniture gavel_(artist) genital_fluids genital_scar genitals glans half-erect hand_on_butt huge_butt human humanoid humanoid_genitalia humanoid_hands humanoid_penis interspecies looking_at_viewer looking_back looking_back_at_viewer looking_pleasured loop lube lube_drip lube_in_ass lying male male/male mammal massage musclegut muscular muscular_anthro muscular_male nude object_in_ass on_bed on_front open_mouth oral overweight overweight_anthro overweight_male panting pecs penetration penile penis penis_backwards perineum pixel_(artwork) pixel_animation plug_(sex_toy) plug_insertion precum precum_drip realistic_penis_size rear_view rimming scar sex sex_toy sex_toy_in_ass sex_toy_insertion short_playtime solo solo_focus spread_anus spread_butt spreading tail tail_motion tailwag thick_eyebrows thick_thighs triceps ursine 2020 4:5 5_claws alarm_clock anthro areola arexo balls beard bed bed_sheet bedding bedroom bedside_table belly big_balls big_belly big_penis biped black_claws body_hair bovid bovine brown_body brown_fur claws clock digital_drawing_(artwork) digital_media_(artwork) erection european_mythology eyebrows eyes_closed facial_hair facial_piercing finger_claws fur furniture genital_piercing genitals glans greek_mythology hair hi_res huge_balls huge_penis humanoid_genitalia humanoid_hands humanoid_penis lamp male mammal minotaur muscular muscular_anthro muscular_male muscular_thighs mythology nipple_piercing nipple_ring nipples nose_piercing nose_ring on_bed orange_hair penis penis_piercing piercing pillow pubes ring_piercing sleeping solo 2020 5_fingers absurd_res anthro antlers areola balls beach beach_towel belly big_balls big_belly big_moobs big_penis biped day deer digital_drawing_(artwork) digital_media_(artwork) erection fingers foreskin fur genitals glans hi_res holding_glass holding_object hooves horn humanoid_genitalia humanoid_hands humanoid_penis lying male mammal moobs navel nipples nude obese obese_anthro obese_male on_back orange_body orange_fur outside overweight overweight_anthro overweight_male penis purple_eyes ray_the_buck sand sea sky solo thick_thighs tj_tiger towel water 2019 3:4 absurd_res amphibian anal anal_penetration animal_genitalia balls blush bodily_fluids butt cum cum_in_ass cum_in_balls cum_inside cum_while_penetrated drooling duo feet froakie generation_1_pokemon generation_6_pokemon genital_fluids genitals handjob_while_penetrating hi_res humanoid_genitalia humanoid_hands humanoid_penis looking_pleasured male male/male male_penetrated male_penetrating mammal nintendo orgasm penetration penile penis pikachu pokemon pokemon_(species) rodent saliva spread_legs spreading string sweat tapering_penis winick-lim 2020 4:5 5_claws alarm_clock anthro areola arexo balls beard bed bed_sheet bedding bedroom bedside_table belly big_balls big_belly big_penis biped black_claws body_hair bovid bovine brown_body brown_fur claws clock digital_drawing_(artwork) digital_media_(artwork) erection european_mythology eyebrows eyes_closed facial_hair facial_piercing finger_claws fur furniture genital_piercing genitals glans greek_mythology hair hi_res huge_balls huge_penis humanoid_genitalia humanoid_hands humanoid_penis lamp male mammal minotaur muscular muscular_anthro muscular_male muscular_thighs mythology nipple_piercing nipple_ring nipples nose_piercing nose_ring on_bed orange_hair penis penis_piercing piercing pillow pubes ring_piercing sleeping solo 2020 5_fingers absurd_res anthro antlers areola balls beach beach_towel belly big_balls big_belly big_moobs big_penis biped day deer digital_drawing_(artwork) digital_media_(artwork) erection fingers foreskin fur genitals glans hi_res holding_glass holding_object hooves horn humanoid_genitalia humanoid_hands humanoid_penis lying male mammal moobs navel nipples nude obese obese_anthro obese_male on_back orange_body orange_fur outside overweight overweight_anthro overweight_male penis purple_eyes ray_the_buck sand sea sky solo thick_thighs tj_tiger towel water 2019 3:4 absurd_res amphibian anal anal_penetration animal_genitalia balls blush bodily_fluids butt cum cum_in_ass cum_in_balls cum_inside cum_while_penetrated drooling duo feet froakie generation_1_pokemon generation_6_pokemon genital_fluids genitals handjob_while_penetrating hi_res humanoid_genitalia humanoid_hands humanoid_penis looking_pleasured male male/male male_penetrated male_penetrating mammal nintendo orgasm penetration penile penis pikachu pokemon pokemon_(species) rodent saliva spread_legs spreading string sweat tapering_penis winick-lim