#2062921 - safe, artist:fairdahlia, princess celestia, princess luna, alicorn, anthro, g4, armpits, clothes, duo, female, flexing, mare, muscles, princess musclestia, royal sisters, sibling rivalry, siblings, simple background, sisters, smiling, tank top, trembling, vein, white background

Full size BBcode Copy
[img]https://derpicdn.net/img/2019/6/11/2062921/full.png[/img] [url=https://derpibooru.org/images/2062921]View on Derpibooru[/url] - [url=https://www.deviantart.com/fairdahlia/art/Commission-Flex-801289766]Original source[/url]

Thumbnailed BBcode Copy
[img]https://derpicdn.net/img/2019/6/11/2062921/medium.png[/img] [url=https://derpibooru.org/images/2062921]View on Derpibooru[/url] - [url=https://www.deviantart.com/fairdahlia/art/Commission-Flex-801289766]Original source[/url]