FURVERT!

abs animal_genitalia anthro asinus balls biceps big_penis biped circumcised donkey equid equine erection eyes_closed fist flexing fur genitals humanoid_genitalia humanoid_penis male mammal muscular muscular_anthro muscular_male nude pecs penis pose presenting raised_arm raised_fist raised_hand scar sheath sketch solo standing tush_(artist)vein