The small one is the "お姉ちゃん" and the large one is the "妹".
ID:710
Uploaded: 2016-05-31 08:35:11
User: Ilikecorn
Dimensions: 640W x 642H
Size: 76.3KB (Download Tatsumaki and Fubuki)
Tags: Fubuki Imouto Oneechan Oppai Tatsumaki
The small one is the "お姉ちゃん" and the large one is the "妹".