A Cuckold's Nightmare: Sibling's Steamy Betrayal

Naively, I believed leaving my girlfriend with my little brother would be harmless. I was wrong. Walking in on them, I found my brother's hands full of her fat ass, his cock stretching her tight pussy. My girlfriend, her eyes closed in ecstasy, didn't notice me until I gasped. She tried to stop, but my brother, lost in his first time, kept thrusting, his cock glistening with her juices. The sight of them, her ass cheeks spreading with each push, his balls slapping against her, was a betrayal I hadn't expected. Yet, I couldn't look away, my own cock hardening at the risky, taboo scene unfolding before me.

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