Rule 34 Dev - anthro anus balls biped brown_markings butt butt_focus countershade_fur countershade_tail countershading erection fur genitals hand_on_butt hand_on_own_butt male markings nude penis penis_tuck perineum pink_anus solo spread_butt spreading tail tan_body tan_fur white_body white_fur layala mammal 2020 digital_media_(artwork) shaded|17564755320