So one day I stopped by my friend's house to borrow some clothing, and we basically agreed that we could just go into one other's residences. So I stepped inside, not realizing she was home, but I heard some grunting noises. I let my curiosity get the best of me, but I had no idea what I would find.

I noticed her brother in the extra room, groaning and holding a girl's head in his lap. She was bobbing up and down a lot, and he kept praising her how wonderfully she was sucking his cock. He was always a crush of mine, but I never realized he looked at me, so I couldn't help but touch myself while watching him have oral. He ordered her to keep going, and then he startled the crap out of me when he shouted "fuck I'm gonna cum Tiff" because that's when I realized my buddy was the one slobbering on his cock. I was stuck, and I couldn't stop looking, even when she stood up and wiped her lips, revealing that I'd been watching.

She dashed towards me, and I ultimately went to her room since I felt we needed to talk about it. She explained how this had started a few months ago and how she wanted to tell me but wasn't sure how I'd react. She wanted to know that I didn't hate her or think she was nasty. I had to admit to her that seeing them made me really hot, and when I discovered the truth, I felt even hornier hehe.