God only knows why you put up with it, but it won't be me who ends it." Okay, have lunch with me today."I was halfway through my salad when I felt her...foot rubbing my leg. I looked over at her and she grinned at me, "its called escalation." Why?" Maybe I'm curious to see how far I can go before you stop me." What if you go too far and I crack and push you down on a desk and ravish you?" You won't do that. If I thought you were that kind of guy this would never have gotten started." Now that is. I didn't mean forced when I said made, I meant ... I guess I should have said 'got me to agree'. Is that better?"I smiled at her. "Oh yes Cassie darling. I just wanted to make sure you didn't feel I forced you to do something you didn't want to." Oh no Daddy. Sometimes I wasn't sure I wanted to try something – like the first time I took your cum ... Mmmm, yummy ... the first time I took your cum in my mouth and then swallowed it. If you hadn't got me to agree to try everything once, I wouldn't. I could do a nice job by myself; but her voracious appetites sometimes were at the edge on nymphomania. I knew she could service more than one dick and I wanted to see her just get fucked by another throbbing cock. We talked about the possibility a few times, considered how to go about it and decided that we would just know when the time was right. Some months after we had discussed having multiple men, an old friend of mine, Jack, came home to visit us. He had brought another good friend with. Her son first started licking her vagina from behind. Then, as he touched her vagina softly he started rimming his mother.It was all I could do to not cum there. I stopped moving. "Yes, rim your mother. Tongue your mother's ass." Mother, do you like it?" he asked. "Yes, it's good. I want you in me," she said to her son.He slid his penis into his mother's vagina. I had never spit roasted a girl before and here I was sharing her with her own son.They then lay down on the bed on their sides with.