Rule 34 Dev - 5_fingers aggressive_retsuko aggretsuko anthro asinus biped blue_hair blush blush_lines bulge clothed clothing donkey equid equine erection erection_under_clothing fingers genital_outline hair hatakerub hi_res male mammal one_eye_closed penis_outline sanrio smile solo tadano_(aggretsuko) tail tail_tuft tuft underwear underwear_only|9583596304