Rule 34 Dev - anthro balls big_penis black_body black_fur bottomless breasts chair clothed clothing clothing_aside computer desk detailed_background doctor doctor's_office duo ear_piercing electronics erection fangs female foreskin fur furniture genitals hair huge_penis humanoid_genitalia humanoid_penis inflation_bulb inside it'll_never_fit larger_male leaning leaning_backward male male/female medical_instrument navel nipple_piercing nipples ophthalmoscope otoscope panties panties_aside patient pawpads penis piercing plant pussy red_hair retracted_foreskin sabertooth_(anatomy) scientific_instrument sitting size_difference smaller_female sphygmomanometer spread_legs spreading table tan_body tan_fur teeth topless underwear underwear_aside unprofessional_behavior vein geekidog roxyshadowfang canid canine felid mammal 1:1 digital_media_(artwork) hi_res|3718575875