I heard a groan, loud enough to not be mistaken for gameplay, followed by, "Oh, Jess, like that."
I'm not naive, we were both healthy young men. Jerking off was something that we never discussed, much the same as our attraction to each other's sister. It was a personal thing and I kept it that way.
My first thought was that he just slurred the word "yes." The second time he said it, I knew it wasn't a mistake. I quietly put on headphones and cranked Pandora.
Knowing he was cranking one out didn't freak me out. Knowing that he was doing it to thoughts of his sister didn't bother...