"Yeah, you've got it. That would mean that the various people who feel attracted to Alex but aren't triggered by him, are what you'd normally consider...carriers, they only have a single affected gene." Uh, how about a little English, Cate?" I asked, trying to bring the discussion back down to where everyone else could understand some of it."Well, if you remember anything from math, logic or computers, it's similar to an XOR stipulation," she attempted to explain. "Instead of saying 'X and Y. She smiled then leaned in kissing me on the lips for the first time. I felt hands pulling my trousers to the floor and I stepped free of them. A hand pulled on the length of my cock as another massaged its head then one was rubbing my ball sack. Liza had the look of a hungry Lioness waiting to feed in her eyes as she watched intensely as Debra began sucking my cock as she continued stroking. Lisa’s breathing was becoming deeper and louder as her breast heaved and fell. Then she let out a. Janie Stood up a little and guided my cock towards her pussy, I just sat there holding the small of her waist. I was shaking uncontrollably. She slowly sat down on my dick, and that was the best moment of my life. Slowly she bounced up and down on my lap, and I just held onto her. We were both uttering and moaning."Oh fuck, that feels so good Janie. Don't tell your dad." "Oh my god, I haven't fucked in so long." She was so warm on my lap, I felt her pubic hair brushing against me and her vagina. We became hornier. We were massaging our cocks. Suddenly my friend said to switch off the PC. I was wondering why he said. Because usually we will masturbate and cum hard in our hands. So I obeyed his words. Then he took me to the bedroom. But our dick was so hard. Let’s try something new, he said. I said ok.Then he came closer and removed my t-shirt. Now I was standing nude in front of my best friend. But I was little shy because I was a little bit fat. He too removed his dress within seconds..