After years of being overlooked, my stepsister finally got a chance to prove herself. She's been practicing relentlessly, working hard every day to prepare for this moment. The anticipation was palpable as she took a deep breath, ready to show off her skills. Her eyes were filled with determination and a touch of fear, but mostly excitement. I sat back and watched as she eagerly took my cock in her mouth, her lips wrapping around it. She was amazing, her skills far surpassing what I had expected. I could see the satisfaction on her face as she felt my monster cock respond to her, growing even bigger. She knew she had done it, she had impressed me. I pulled her close, our bodies entwined as I fucked her hard, filling her tight pussy with my hot cum. It was a perfect ending to her final test.