Rule 34 Dev - 1girl 2015 all_fours ambiguous_penetration anthro anthrofied ass big_breasts blue_eyes blue_hair breasts crown cutie_mark dildo doggy_position duo english_text equine female/female friendship_is_magic from_behind furry hair heart horn incest leash long_hair mammal multicolored_hair my_little_pony navel nipples open_mouth penetration princess_celestia princess_luna purple_eyes raised_tail royalty sex sex_toy sibling sisters strap-on tail text thetroon winged_unicorn wings|599442