Thirty-minute hands-free ass rubbing challenge with stepbrother for story-themed JOI

Get ready for a wild ride as I push my boundaries and take on the ultimate challenge of rubbing my stepbrother's back for thirty minutes without using my hands. This isn't just any ordinary rubdown, it's a story-themed JOI that will leave you breathless. My stepbrother is a big fan of fat and chubby women, and he's got a special surprise in store for me. As I lay on my stomach, he begins to explore every inch of my body, focusing on my ample curves and round ass. His hands are rough yet tender, and his grip is firm but gentle. The sensation is overwhelming, and I can feel every muscle in my body tensing with anticipation. As the time ticks by, the pressure on my back intensifies, and I can feel his excitement growing. Finally, he reaches his climax, and his hot, sticky release covers my back, leaving me covered in cum. This is one adventure I won't soon forget.