Alone at last, I approached my boss's wife at her birthday party, my heart pounding with anticipation. She was a busty, curvy woman with a big ass, dressed in a revealing dress that made my cock throb. I whispered my 'gift' in her ear, her eyes widening with surprise and excitement. We snuck away to a secluded corner, her moan echoing as I pushed her against the wall, my hands grasping her ass. I fucked her hard in the missionary position, her moans growing louder as I pounded into her. She came, her pussy clenching around my cock, and I pulled out, creampieing her as I grunted in release.