[Requests Accepted] [乳揺れ愛好会] オナニーを妹に見られちゃったお姉ちゃん! [RJ272523]

One day, I tried to borrow a manga from my sister, and when I opened the door to her room...! This game is primarily about watching my sister's masturbation scenes! I added some simple choices to make it feel like a short story! You can enjoy about 10 variations of the masturbation scene with one basic CG, along with expression differences and motion differences! Game screen size: Width 600 × Height 800