FURVERT!

anthro anus balls black_anus black_balls black_perineum butt equid equine equine_anus genitals hi_res horse looking_at_viewer looking_back looking_back_at_viewer male mammal natekat nude perineum pinup pose presenting presenting_anus presenting_hindquarters puffy_anus raised_tail skaro slim solo spread_anus spread_butt spreading tail tail_anus