The flags which adorned the path leading up to it and the floodlights which illuminated portions of it gave it an almost castle-like appearance agains... the evening darkness. They walked ahead, urged on by Mike’s fascination, to the street’s end. There a broad graveled pathway led them to the fort. Unlike the street they left behind, there were no cars, no music, no modern additions to distract from the mood. The San Juan beachfront and skyline opened up behind them as they journeyed back in. I was not sure that I could handle them. During their nightly phone call Cynthia explained that what they were doing was in no way normal for any of them. Being cooped up for three days had given her a chance to tell her daughters about giving me her virginity and letting me fuck her constantly when she was their age. The girls decided that giving me their virginity sounded like a good idea and they wanted me to fuck them constantly too. Cynthia told them that she was willing to share me.That’s. .He gasped for air. Still too chicken.He chastised himself mentally. He was a scientist. He could do this! Theydid experiments on people all the time, after all. What was one more?Of course, said the small voice at the back of his mind, humanexperiments always came after years of testing on animals, and even then,only if the risk was guaranteed to be ninety-nine point nine percentnegligible. This concoction hadn't even been forced onto a housefly, letalone a person.He sighed. What difference. Me: Yeah.She: Your dick is still hard.Me: You are so amazing that it doesn’t want to take rest.She: How was my cum?Me: Tasty as you. Mine?She: A bit salty but tastes fantastic.For some time we chatted about our dream sex. She asked about my clients and my favorite sex etc. All this while I was hugging her from behind and my cock was hard inside her.Me: Ready for the second round?She: Waiting for it.Me: Wait I have a surprise for you.I came below her and started to eat her pussy. She moaned.