Being in my late 30's i really enjoy serving a younger Domme and adore the added humiliation that it brings to the situation.Anyway, i digress.... bac... to the story..... The Empress made contact with me on a mundane Tuesday evening and i was excited to see her initiate the messenger contact and inform me i was required on Friday evening to attend to her needs as her slut.I was told to bring my chastity belt, a new lock, sealed in the packet with keys and a bag containing full sissy underwear,. She looked up, “I need you Tony, I need you to make love to me” then she slipped the end of my cock through her lips. When she had finished raising a stone hard monolith in my lap Shelby straddled my legs and settled down. She wrapped her arms around my neck then started rocking her cunt, my erection was sliding in and out of the oven hot tunnel of her sex. My sister rocked her hips until her entire body cramped then she clutched me even tighter as she climaxed.Shelby and I spent the next five. I looked resignedly over at my sister as we both slid back down into our seats. We both had recognized his tone."Your mother and I want to have a talk with you," dad added unnecessarily."I'm pretty busy dad ... studying ... I've really got to get going," I protested as I again pushed my chair back from the dining room table."Me too daddy, big exam coming up," my younger sister quickly added as she jumped to her feet."SIT!" he ordered, his dark eyes drilling into mine."But--" Please Bobby, your. Sergei was a typical geek and very nervous around two attractive women However after a good few hours in a car with them he started to relax. It turned out that he was not totally lacking in social skills but the same could not be said for his confidence.The two girls decided that it would be nice to give him a good time when they stayed the night near Strasbourg. Sergei had the time of his life playing with two uninhibited girls set about corrupting him. Whether he had ever had a girl before.