FURVERT!

abs animal_genitalia animal_penis anthro balls big_balls big_muscles big_penis cimarron equid equine equine_genitalia equine_penis genitals gryblak hi_res holding_penis horse huge_balls huge_muscles huge_penis hyper hyper_genitalia hyper_penis looking_at_viewer male mammal monochrome mouth_closed muscular muscular_anthro muscular_arms muscular_male navel nipples nude penis sitting solo tail vein veiny_muscles veiny_penis