FURVERT!

against_surface against_wall animal_genitalia animal_penis anthro balls big_balls big_flare big_penis bodily_fluids bottomwear canid canine clothed clothing equine_genitalia equine_penis flared_penis fox genital_fluids genitals hi_res huge_penis leaning leaning_backward male mammal masturbation medial_ring mismatched_animal_penis mismatched_genitalia mismatched_penis pants partially_clothed penile penile_masturbation penis precum sheath shirtless solo standing tail unzipped unzipped_pants urethra urethral_fossa vein veiny_penis viskasunya zipper