He closed his eyes so he wouldn't see her and tried thinking of anything but his naked mother riding his cock, all this in a futile attempt to delay h...s climax. "Mom, I'm gonna cum" Zach said in a nervous voice a few seconds later and started moaning wildly."Go ahead sweetie, cum for mommy!" Liz said to her son filthily and kept riding him passionately. She mused at the sentence that just came out of her mouth and watched her son's orgasm take hold of him."Oh my god, oh yes, FUCK!" Zach called. She was lying in the bathtub looking nowhere depressed. I also entered the tub and sat opposite to her. She asked weather she was not good enough for me and many other ridiculous girly questions, which I just responded with no-no’s. I explained to her that I was not ready to have sex and wanted to keep at least something exclusive for my future life partner. I know it sounds really filmy but the feelings flowing inside me that time were some what like that only. Its not like that I am too. She even knew about our encounters too.What she said next gave me the biggest shock of my life. She told me that her mom was totally okay with me fucking her but since it was her first time, she wanted us to do it at her place.Sasha was totally cool with it but I on the other hand couldn’t digest it. But after hearing this, the devil inside me was awake. I wondered, “Yaar aga maa itni sahi hai toh kyoun na issey bhi lapatey mein lelein?!”I was too excited for the dinner the next day. I gifted. After a couple minutes, she said, "We should go inside and have some more fun. We probably only have about four hours before she's home." I said, "Yeah, you're right. Let's go. Let me help you out of the pool." I grabbed her hand and lead her to her bedroom. We flopped down on the bed, she mounted on top of me and started riding me that quickly. We each came two more times and were drained. We looked at the clock and realized that we had to freshen up or else my wife was definitely going to.