YSN-427 It seems like my serious sister finally got her first boyfriend. Since she has little experience, she’s quite interested in H stuff and started asking me questions about it. Then her eyes suddenly changed, and she began staring at my crotch. I let

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.