Rule 34 Dev - anthro ass big_breasts big_penis black_hair blush book breast_expansion breast_grab breasts clothing cyrus_physhor embarrassed equine erection eyewear father female glasses green_hair hair hand_on_breast horn horse hug kissing male mammal mother muzzle_(disambiguation) my_little_pony nude one_eye_closed open_mouth parent penis pose purple_hair purple_skin rule_63 school smile son speech_bubble torn_clothing transformation unicorn wink yellow_skin|3132181520