Mark reached the bottom and our pubic bones touched. I moved my hips against him gently, trying to get some friction around my clit. It didn't work but I had a lovely feeling of his lovely cock twitching in and out whilst filling me. We were still kissing, maybe a bit less vigorous but still with wet faces. The world stood still for me. I was being kissed, my sister was holding my hand and my wet pussy was full of a beautiful wide cock. Mark broke the spell and the kiss. It was Penny, she had climbed onto the bed, laying down next to me and had pushed his...