Thanks so much for the video and the idea. I watched this video some time ago and got myself an innertube like that. My buddy and I love to to fuck while wearing full rubber and the tube is so soft and comfortable. the shape is just right to curve and hold my body just right, without any effort on my part, and it holds my ass up in the perfect position and right height for him to fuck me on my back. Not only that, but it's rubber too.