Helen and Tony told Mary that if this did eventuate, and in her heart she hoped that one day it might, Sam would not be a part of it and to be honest ...hey did not care if he knew or not.One night when Mary had come over to borrow some bread whilst leaving Sam home to look after young Robbie. While they were sitting together on the couch Helen started to rub Tony's bulging cock in front of Mary, to dip her toe in the water so to speak. Mary had only been throwing Tony the occasional mercy fuck. In and out she pumps her butt. She's moaning in pleasure as she watches herself fuck her hole, thru the mirror daddy had installed above their bed.Mom then takes her 10 inch black dildo witha girth of almost four inches and slides it into her pussy. She rolls over, spreads her legs wide and rests her feet on the bed posts. With the dildo in her pussy, she rubs her nub til the sensation takes over her body. She screams in delight as she begins to squirt her pussy juice. She continues to rub. “Sure, Sis! Sounds like fun!”When the big night came I dressed in my only good suit, a bespoke number that I’d bought for occasions like book signings, where I couldn’t get away with my uniform of cargo shorts and tee. I refused to wear a tie, however. Meg would just have to put up with an open collar white shirt. I also spit-shined my shoes, because Marine. My publisher would have had me in dress blues and all the fruit salad if she’d had her way. I finally convinced here that it was illegal,. She made a quick pause, and slowly removed her toungue from my dick. Then she took my dick and stuff it into her mouth. I could feel her uvula gentle caressing the head of my penis. After letting my dick get comfortable, she replaced her toungue with her teeth. And slowly work my shaft out her mouth.She repeated this three more times before I came in her mouth. I had so many questions to ask her, but before I could ask some students came in.“Your not the only one.”was the last words I heard.