"W-Why are you asking such a shameless question?!" Diane asked me nervously. "Of course I wasn't doing something like that!!"
From her reaction, I could be sure Diane was lying. She was normally serious, but whenever the topic involved me or her family, she became very flustered and nervous.
"You didn't answer my question."
"It's just… that's embarrassing…" Diane said, still avoiding my gaze.
"It's just the two of us in the room, and it's pretty hard to hear anything through the wall, isn't it?" I said to her, touching the wall of the room.
"If people are shouting, then it isn't," Diane said, her cheeks flushed as her eyes met mine. "Everything you did with the others… I heard it all."
Diane told me that, being sincere with me for the first time that night. But it didn't stop there.
The young woman grabbed the hem of her skirt, revealing her panties to me. They were white, except for a darker spot where her slit should be.
