I pleasure myself while my stepbrother watches in part 3 of this series

In the third installment of our series, I find myself alone with my stepbrother. He's got his eyes on me, and I can tell he's got a thing for my big, black cock. I decide to put on a show for him, giving him a front-row seat to my self-pleasure. As I start to stroke my massive member, I can see the desire in his eyes. He's captivated by the sight of my huge shaft, throbbing with anticipation. The room is filled with the sounds of my hand moving faster and faster, my breath hitching as I get closer to the edge. I can feel the tension building, my body writhing in pleasure as I finally release, shooting my load all over the place. The sight of my cum glistening on my massive cock is enough to leave my stepbrother in awe.