SNOS-200 My best friend's little sister, who's younger than me but tall, looks down on me and deliberately shows me her panties! If she shows me something like that... I can't stop masturbating! Shirakami Sakika

Sakika is my best friend's younger sister, and I've known her since we were little. But the Sakika I saw today after a long time wasn't the Sakika I knew. She seems to have grown quite a bit since I last saw her. She's taller than me now, and she's started wearing short skirts above the knee. It looks like her panties will be visible if she moves even a little... Whoa, I think I saw a bit just now... They're striped light blue panties. I saw them again! They have a tiny ribbon on them, so cute... Her pussy is so soft and squishy, ​​it's irresistible... Wait, is Sakika perhaps showing me her panties on purpose this whole time!? Did she know that I was peeking at her, and that I was breathing heavily with excitement!? "You get turned on by looking at a younger girl's panties~" He said, smirking and provoking me, and it's pathetic, but...I just can't stop stroking! I want to have more panty sex with Sakika-chan!