Lisa and Mandy stripped off their remaining garments and started to kiss. I could see their tongues dancing between each other's lips. Hands caressed breasts. Lisa's small boob disappearing under Mandy's touch, and Lisa pawing at her friend's large, soft tits, roughly pinching her nipples.

Heather watched them too, and I leaned down and took her hard nipple into my mouth. She cried out and increased the pace of her gyrations on my cock. Unceremoniously, she raised herself up, and then back down. My cock slid right up inside my sister's hot, wet pussy again. We were having sex - no, we were now fucking - with her best friends...