One of my younger girls had become curious about what we do with all the older ones while we send them to play in the basement game room. It was time to start teaching her about the joys and pleasures of sex. Well, the only one home with me at the time was my middle son, who’d only been introduced to the lifestyle the year before. 
He and I sat down together and started talking to her about what a man and a woman do, slowly showing her as we did. Sitting there on the couch, with her sitting on the coffee table in front of us, my son and I undressed each other while watching her watching us. He showed her how a man might kiss a woman’s neck, caress her tits. I showed her how a man’s nipples are at least as sensitive as a woman’s. When his hands went to my thighs and slid my skirt up, her mouth dropped. She stared intently as his fingers played at my clit, and then she got up, took her panties down, and looked down at her own little pussy. She reached down and touched it to see what it would do. I’m not sure if she got the response that she was looking for, but she looked back up at his hand on my cunt, and sat back down. She sat back on the table, like I was on the couch, and reached down to start playing with her own clit, following his movements almost precisely. I could tell when it started to stimulate properly, because her eyes lost focus and her fingers started moving around a little faster. I snapped my fingers at her, and she came back to focus just in time to watch her brother slide fingers into me. She immediately followed suit, and slid 2 fingers into her own cunt. She started thrusting them in and out at the same time her brother did. She fucked herself while he fucked me with his fingers. Watching her little fingers playing in her little cunt did me in, and I came at the same time that she got her first orgasm. Her little body trembled, and that made my own orgasm even more intense. Yes, I think we’ll have lots of fun with this one in the near future.
