First time sleeping with my real sister on her birthday

Celebrating my girlfriend's birthday was a special occasion, and I had been eagerly anticipating it for weeks. I knew she had been craving some intense action, so I made sure to plan a steamy session with her that night. As things heated up, I couldn't resist the urge to explore her tight pussy with my fingers, driving her wild with pleasure. She reciprocated by skillfully working her tongue on my throbbing cock, almost making me lose control. Our bodies entwined in a passionate embrace, we delved deeper into our desires, exploring each other's bodies with fervor. The sight of her voluptuous ass bouncing on top of me sent shivers down my spine, solidifying my belief that she had the biggest ass in the world. The climax of our encounter saw me filling her with my hot load, marking the end of an unforgettable birthday celebration.