FURVERT!

abs animal_genitalia animal_penis anthro balls biceps biped black_balls black_sheath blue_eyes brown_hair equid equine equine_balls equine_genitalia equine_penis flexing fully_sheathed genitals hair horse looking_at_viewer male mammal morticus muscular muscular_anthro muscular_male nude pecs penis penis_tip sheath solo v-cut vein veiny_arms veiny_hands veiny_muscles veiny_thighs