My kid sister, who until recently just played wrestling games with me, has lately been flashing her panties way too often.What’s a big brother supposed to do…? Should he go for it!?

[Supported Devices] PC, iOS / iPadOS, Android, PS4 / PS4 Pro, PS5 / PS5 Pro, TV, TV (DMM.com App), FireTV devices, Chromecast
[Streaming Start Date] 2025/05/23
[Product Release Date] 2025/05/27
[Runtime] 145 minutes
[Cast] Sakura Shirakami
[Director] Inabaal
[Series] —-
[Studio] S1 NO.1 STYLE
[Label] S1 NO.1 STYLE
[Genres] Panty Shots, POV, Beautiful Girl, Sister / Younger Sister, Solo Feature, Seductress, Exclusive Distribution, 4K, High Definition
[Streaming Code] sone00732
[Manufacturer Code] SONE-732

Until recently, I was just the little sister who always lost to my brother in playful wrestling matches. I had never once beaten him at anything. It was so frustrating… unbearably frustrating…!

But then, I saw some guy friends getting all worked up just from seeing a girl’s panties.
Could it be… my brother would lose his composure too, if he saw mine?

One day, I flashed my panties at him—
and I won instantly.

“…Sakuka, don’t underestimate your brother. Cover yourself up…”

lolololol

As if I’d cover up, lol.

Every time I teased him with a panty flash, he pounced on me and lost control.
Big brother, you’re so lame, lol.

B-but… maybe this forbidden brother-sister sex isn’t such a bad idea after all.

Warning: Sakuka’s tight panties digging into her plump hips and her soft white skin spilling out are dangerously erotic!