"Hi guys," she smiled and waved. "I guess that'd be me."There was a bit of noise, as people tried to figure out what she meant. She waited until thing... quieted down a bit, then continued."How many of you know what a switch is?" asked Tina.No hands went up. She knew there were some folks who did know, but apparently no one wanted to admit it."A switch," said Tina, "is someone who can be a dominant or a submissive. I am a switch. Mr. Jennings has been showing you my submissive side this week.. Something magical andmysterious. Something that she couldn't explain.Then as Cindy slowly stepped towards the glowing sphere, she couldn'thelp but wonder where it had come from. They'd said that the club hadbeen made 8 years ago, but where had the sphere come from before that?What was it really for? Then as Cindy stared deeply into the ball, herheart racing nervously, she glanced at a still smiling Mandy."Where did it come from?" Cindy asked aloud, though when she saw Mandylook confused, Cindy. How long will it take you to get here?”“I can be there in about 20 minutes,” she said excitedly. “Thank you, sir.”“Oh, Madison. There’s a couple of things I want you to bring.”“What’s that?”“I want you bring one of those scrunchies or elastic hairband things to keep your hair away from your mouth while you’re sucking my cock. And, I want you to bring your school uniform and a pair of white cotton panties. I want to see you in that tonight.”“Yes, sir,” I could hear her voice just quivering with. Each time, we learned new and exciting ways to give pleasure to each other. And we seized more and more opportunities to be together. Almost every night, we would wait until Mum and Dad had gone to sleep before one of us would go creeping into the other's room for an hour or more of sisterly sex.The second memory of that summer was that my own tits began to develop, at long last! My bust was nowhere near the immense size of my sister's, but the puffy little buds on my chest suddenly turned into.