My stepsister is a master at relieving stress. Every time I'm feeling down, she knows just what to do to make me feel better. Today, I decided to take things to the next level and get her to show off her skills. She started by giving me a nice, slow massage, working out all the tension in my back. But then, things took a naughty turn. She began to stroke my hardening member, her hand moving up and down in a rhythmic motion. It was a sight to behold, her chubby fingers expertly working my shaft. I couldn't help but moan in pleasure, my body writhing under her touch. The sensation was intense, but it only made me crave more. I reached down and guided her to continue, her natural tits bouncing as she eagerly obliged. The sensation was overwhelming, and I knew I was on the verge of climax. I pulled her close, and with a final few strokes, I released my hot load inside her, marking the end of our steamy session.