My best friend Rayna was comming over for the weekend, we had somuch planned. Rayna arrived early, looking even more beautiful than ever. Shes got...ong brown hair, and blue eyes, she stand at 5'6" which is one inch tallerthan me. I greeted her with a hug, and took her stuff downstairs. Wequietly whispered about all the things we were going to do, smiling andgiggling. Finally, my parents announce that they were leaving, and we wereoverjoyed! We said good bye, and after they were at least. I pulled my shirt off, dropped my pants and stood up as Lynn directed me towards Keri.“Now, how big is Phil’s?” Lynn asked as she held my semi flaccid cock in front of Keri. “Use this one as a measuring stick”.Keri appeared to be almost studying my dick, then reached out and touched it.Again with the electricity, my sister just touched my cock…the taboo of it made me jump, cock immediately hardened and stretched.“Holy shit” Keri exclaimed, as she circled my cock with her hand and rubbed from. I certainly didn't have a problem with them doing that either, they were well old enough anyway, and if they could feel comfortable enough seeing something like that together, who was I to complain about it or ruin their last night of silly, semi-erotic fun. Even so, as my head hit the pillow, and as my thoughts wandered off into my own dreams, the last images that I actually allowed were of the two of them together, curiously exploring one another as girls sometimes did at their age.I lay. His throbbing cock was more than eager to feel her lips around it. As he turned around and sat, however, Jolene was not there. Jolene guided Sarah back onto the mattress and had her lie on her back. Smiling at Sarah, but talking to Greg, she announced, "This time, Greg, I will take my reward from Sarah. A mix of you both." Jolene spread Sarah's legs wide and began to lick at her pussy lips as if they were an ice cream cone. She looked up at Sarah as she began to push her tongue in, spreading.