I'm a mother and I'm 48 and I have a son who is 24. My best friend Bonnie and him are always making sexual comments to each other and of course I'm in middle in the middle of it most of the time. My son Eric has an unusually large cock and is always bragging about it. This is what usually starts the back and forth between him and Bonnie. He even says things to me like wouldn't you like to see Bonnie suck my cock? I tell him to stop but that never works. Privately, I have had thoughts about the things he says to Bonnie and being honest, sometimes I get a little excited but never show it. I know its taboo and probably wrong, but I could watch Bonnie suck him. I tell myself that just watching is O.K. and he is a consenting adult. Two weeks ago Bonnie and I decided to stay in. We usually go to this outside bar on Friday nights but it was raining so we decided to stay in. We made frozen drinks and got pretty hammered just sitting around talking. Per usual, the conversation turns to sex and Bonnie asked me if I had ever seen Eric jerk off. I told her no and then she asked me if I wanted to and I told her that if I saw him I would watch. She then kept asking more questions like had I ever had a private thought of sucking or fucking him. Being pretty loose I did tell her that I had occasionally had a passing thought but said that I didn't think I could ever do incest. This conversation went on for quite a while and got to the point where she asked me if I would ever want to watch my son fuck her. I was honest and told her yes. Both of us got seriously horny. We occasionally had talked about having sex but wondered if it would do anything to our friendship. That night, the circumstances were just right. Bonnie took of her top and told me to touch her tits and I did. We were on the couch and she stood up and bent over towards me and asked me to suck them. Her areolas are big around and her nipples as big around as my pinky. I really like them and I liked sucking her tits. I took off my blouse and Bonnie sucked my tits. We both leaned back on the couch and started kissing. It was hot. Then we both started feeling each others pussy's and even fingered each other as we kissed. Right in the middle of this we heard the garage door open and new it was my son coming home. We put on our clothes and pretended to be talking when he came in. You could tell that he had been drinking. He wasn't drunk. but a little loose. All of a sudden, Bonnie says to him, "Your mom and I have been talking about your cock." He then says, "oh really, are you finally ready for to see it?" Bonnie said yes.I wasn't surprised as we were very horny at this point. He looked at me and said, "what do you think mom, should I get it out her for?" I said, "you are an adult and can what what you want." Not surprising, Eric takes off his shorts and you could see this huge bulge in his underwear. He walks over to us and stands in front of Bonnie and says, "take it out." Well, she did. His cock is really large and it was rock hard. Right away I got this warm feeling over me and a butterfly in my stomach. Bonnie grabbed a hold of his cock and started to jerk him. Any and all humor had now stopped. I'm sitting right next to Bonnie on the couch and then she starts sucking him. A minute later, she grabs my hand and brings it up to his balls. I didn't resist. I grabbed his balls and started massing them. Oh my God, I couldn't believe it. I was actually feeling my own sons balls and I will never his comment when he said the words, "mom, that feels so good." I have no idea how I found the courage, but right after his comments, I leaned in and started his sucking his big balls. Bonnie said, "oh my God, that is so hot!" She then stopped sucking him and took my hand and out it on his cock and said, "jerk him while you suck his balls," I'm now have both his balls in my mouth and I'm jerking his shaft. Bonnie is absolutely on fire and takes off all her clothes. She laid back on the couch and opened her legs to reveal this huge triangle of dark cunt hair. She then starts masturbating while she watches me jerk my son. I wanted my clothes off too so I stopped sucking his balls and got undressed. Bonnie then says to Eric, "do you want to watch me eat your mom?" His response was, "yes." Bonnie leaned into me and started licking me. It was awesome. At the same time, Eric moved in close to me still standing. When I looked up, his cock was right there.He didn't say anything. but he bent his knees to lower himself and his cock was at my mouth. He was waiting to see if I would do something. I did, I opened my mouth and he lowered himself down so that his cock went into my mouth. I will never forget that first taste and how surreal it was. I knew there was no turning back time so I went for it. I sucked him furiously.The ending was coming and we all knew it. Bonnie laid back on the couch and fingered herself while she watched me suck Eric. I had more than half of his cock in my mouth when he said, "mom, I'm gonna cum." Bonnie was saying. "take it, take your sons cum in your mouth. " Those words got me so hot and I moaned as if to say, "yes, give me your cum." A second later my son said words that are forever burned into my mind. "Mom, I gonna cum in your mother." He shot his first load and it was huge, then another shot and another. I could keep up with it and it started to run our of my mouth. My son said, "Mom, I can't stop cumming!" Another shot and then another. I think he shot like 6 times. I swallowed what I could and the rest kept flowing out of my mouth. This started a new venture with the three of us and yes, last weekend, I let him fuck me. Bonnie and I were in a 69 with me on top and Eric got behind me and fucked me. It really was very hot and I honestly love it. Eric and I have not done anything alone. Its always with Bonnie and maybe on some level it feels more O.K.