I was just chilling on the couch, enjoying my downtime when my stepbrother came in and started going off on one. I didn't really pay much attention to him at first, but then he started to strip down to his underwear, revealing his monstrous cock. I was caught off guard by the sight of it, but I couldn't help but be intrigued. He told me to suck it, and I hesitantly took it into my mouth, surprised by its size. It was a wild ride, and I couldn't believe I was doing it, but it felt good. He fucked my mouth hard, and I loved every second of it. It was a strange feeling, but it was also incredibly exciting. I had never experienced anything like it before, and I was hooked. The sight of his huge cock made me feel so small and helpless, but in a good way. I knew I wanted more, and I couldn't wait to do it again.