Surprised my flatmate pleasuring herself with a pillow, I joined in from behind and penetrated her, she enjoyed it

I was completely taken aback when I stumbled upon my flatmate pleasuring herself with a pillow, but I was more than willing to join in and take over. She was so into it that she didn't even notice me coming in from behind and penetrating her. It was a wild ride, literally, as she rode me like a pro while we both remained completely naked. The sight of her big ass bouncing up and down as she rode me was absolutely mesmerizing. It was a steamy encounter that left us both completely satisfied. This is one video that I wouldn't mind watching again, especially if we continue to have such passionate moments.