I went to my friend's house one day to borrow some clothing, and we essentially decided to just enter each other's houses. Unaware that she was home, I entered and heard some grunting sounds. Though I had no idea what I might find, I let my curiosity to overcome me.

I saw her brother groaning and holding a girl's head on his lap in the spare room. He continued telling her how well she was sucking his cock as she was bobbing up and down a lot.

I was constantly in love with him, but I was unaware that he was staring at me, so I couldn't resist touching myself while I watched him perform. He urged her to continue, but when I saw my friend was slobbering on his cock, he startled me by yelling, "fuck, I'm gonna cum Tiff." She got up and wiped her lips, indicating that I had been observing, but I was still unable to stop gazing.

She rushed over to me, and because I knew we needed to talk, I finally started to walk to her room. She said that this had begun a few months prior, and she wanted to tell me but wasn't sure how I would react. She wanted to know that I didn't think she was repulsive or hateful. I had to tell her that I was incredibly horny when I saw them, and I got even hornier once I learned the truth.