YSN-427 My Super Serious Big Sister Finally Got Her First Boyfriend. She’s Got No Experience With Sex, But She’s Curious About It, So She Came To Me With Her Questions. But Her Expression Suddenly Changed When She Looked Down At My Dick?

I’m a serious older sister who doesn’t know anything about sex, but I’m in a good mood today, so when I asked, “Did something good happen?” Before long, she would ask me about sex, so I treated her appropriately, but her eyes finally changed and she stared at my crotch while dripping drool, and she imitated what I saw, so for the time being, I let her fall in love with me. I tried.