FURVERT!

3d_(artwork)4:3 abs anthro athletic balls biceps big_muscles big_penis biped black_body black_skin bodily_fluids clenched_teeth darkwargreymon_(artist)digital_media_(artwork)dripping erection genital_fluids genitals grey_body grey_skin gym horn humanoid_genitalia humanoid_penis leaking male mammal masturbation muscular muscular_anthro muscular_male nipples nude pecs penile penile_masturbation penis pose precum presenting public public_erection rhinoceros solo standing teeth vein weights