"I'm a cheerleader now!"Dad gave me a big hug. "You look great Kate," he said, "now where am Isupposed to stay?" I explained about chaperones for the...Prom and Dad saidhe'd think about it.Mum said if I wanted to I could wear my cheerleader uniform all evening.I was in no hurry to change so I happily agreed! After dinner andhomework I practiced a few cheers for the family. I felt as though adream had come true for me, I never wanted to take my uniformoff!The week flew by and soon it was the. Suddenly, I had a peculiar sensation that someone was watching me. When I turned my head, I noticed that sexy red was finally up, and he was actually looking at me. I looked around me to save myself from further embarrassment of thinking he was looking at me, but looking at someone else; but there was no one.Then, I looked back at him again. I frowned my face showing skepticism as I pointed at myself with my finger and formed the word “me” on my lips without making a sound. I could see his. Finished, a panting Dan leaned over Ali’s back, kissed her ear and back of the neck on her right side and said simply, “Thank you.” He then began to tidy himself up and regain his composure as he admired the still beautiful form that was slumped over the car. He again pulled out his mobile phone and captured some more memories for posterity, relishing the image of the thick concoction of juices now dripping out of Ali’s used cunt. Ali was snapped out of her reverie by Dan’s parting comment. I guess she never felt how much a big cock can enhance her sexual pleasure. I got up on my knees and grabbed her legs and began pumping back and forth, in and out while she played with her big perky tits. She grabbed me and pulled me down and kissed me hard on the mouth, her tongue danced with mine and then flipped our positions so that she was now on top. It was one of the most beautiful sights I had ever seen, my gorgeous naked step sister straddling my cock while her big tits bounced up.