I went to the couch where Becky was and said, "Sit on my lap facing the television so that we can watch as we talk about the interesting things that h...ppened to you today." OK, sir," Becky said, climbing on my lap facing the television. "What will we be watching?" Home movies," I replied, turning on the video."Oh my god!" Becky screamed. "I can't believe that I forgot there was a camera on the whole time!"The video started just a little bit before the dinner yesterday, though I had cut out some. I thrust my dick into her pussy, reveling in her halfling tightness. She moaned into her mother's cunt.Then I yanked my dick out of her, moved over, and buried into Alli's snatch. She squealed her delight, her twat squeezing about me. Her silver hair rustled against her sister's golden curls. They devoured their mother as I fucked them.I fell into a rhythm. I went back and forth between them, fucking from cunt to cunt, savoring every moment of burying into one sister's juicy twat and then into. Since we were 12 we would pretend we were married and would hump eachother clothed almost every sleepover night. We would usually both split time being woman, but recently I had taken the role of women more often. We also started doing different positions instead of just the traditional. My favorite is doggie style because I could feel his hard cock thrusting on my ass and it turned me on. Now that I understood sex more I started to want it more. I wanted my best friend, lets just call him Sam,. "We're in good shape. The sun is still an hour away from setting, so I can use it with the reflectors to get some strong light on you."On the second floor we went past two closed doors and turned left into a big room that was at least twenty by twenty feet. It was lined with storage closets and littered with photographic equipment. One corner of the room was walled in and painted black. Inside that little darkroom I could see film hanging and bowls of fluid. The room had that slightly acrid.