Muscular stepsister helps me masturbate and cum

I was working out hard when my stepsister came in to help me with some exercises. She's always been a big fan of my muscles, and she couldn't resist giving them a little spank. But things took a wild turn when I started to get my dick hard. My stepsister, being the curious girl she is, decided to see what it would feel like to give me a blowjob. At first, she was hesitant and unsure, but after a few minutes of sucking my cock, she got the hang of it and started to enjoy it. I could feel her getting turned on as she sucked my dick harder and deeper. Finally, I couldn't hold back any longer and I shot my cum all over her face. It was a wild and crazy experience, one that I won't forget anytime soon.