FURVERT!

absurd_res animal_genitalia animal_penis anthro balls big_penis dingoproto equine_genitalia equine_penis genital_raphe genitals hi_res hybrid_genitalia hybrid_penis knot knotted_equine_penis knotted_penis machine male medial_ring nude penis protogen raphe_(anatomy)scrotal_raphe simple_background sitting solo spread_legs spreading yukein