Exploring the Boundaries of Family Sex and Desire

Hello. My name is Jim. I am a 45 year old father of two wonderful children. My wife and I have been married for 25 years and we still have the sex life we had when we were teenagers. In fact, since both of our children still live at home, it is quiet common for them to yell at us to keep it down when we are having sex. Our daughter, Jenna, just turned 18 and is getting ready to start college this fall. Our son, Patrick, is 21 and is living with us while he completes college. The only problem with the living arrangements is that fact that both of our children are bi and my wife and I have both been having fantasies about them, we just hadn't made our move. That was, until the weekend my son and I went on a fishing trip and left my wife and daughter alone at home. The plan was for me to seduce and fuck our son while my wife did the same with our daughter. We even planned it so far as to "arrange" that my wife and daughter would be fucking by the pool when me and Patrick got home. Little did we know exactly how great this would turn out for all of us.

We left on that Friday morning very early. We had packed the truck the night before and we kissed both the girls before we left. I thought I saw my sons hands go to his mother's and sister's asses, but I couldn't be sure. We climbed in the truck and headed off while the girls stood at the curb and waved to us. I was driving, so my son leaned back in the passenger seat and got comfortable. My son is 5'9 and 130 lbs, so he took up most of the passenger side. His dark hair was cut short and did nothing to hide his wonderful blue eyes. His muscles were toned from being on the swim team in both high school and college. His ass was firm and very taunting every time he bent over in front of me. I could stare at him for hours. Unfortunately, it would only be about a half hour drive to get to the lake which, I hoped, would be nice and empty. As I drove through town, I began to notice my sons cock getting erect. At first, I didn't think to much of it, but then my son moved his hand into his shorts and I couldn't keep quiet any longer. "Having some nice thoughts son," I asked as he wrapped his hand around his shaft.

"Oh, yeah dad. I was just thinking about how awesome last weekend was," he said as he began to move his hand on his shaft. I could see through his shorts that the thoughts he was having were having quiet an affect on him.

"Wait. I just thought you and Jenna had gone on a weekend trip with Gavin and Rebecca. How much fun can two couples have?" As soon as the words were out of my mouth, I got images of orgies I had seen in porn and some of the parties his mother and I had attended. Lost in thought, I almost missed the turn off to the road that would take us the rest of the way to the secluded lake. I was hoping that it would be quiet and no one would be there. It would make the seduction of my son so much easier.

"Oh, plenty," he said as he began to stroke himself harder. "Well, it was never meant to be just a 'getaway.' Rebecca had told me and Gavin had told Jenna that they had each had a secret desire to try being with a member of their respective gender. So, since me and Jenna have been open about our sexuality and talking about getting together, we decided that we would all get together and just see how things went."

I was slightly shocked at this. What kinds of conversation had Patrick and his sister been having and how far had they taken them. I decided that being straightforward would be the best option. "Son, have you and your sister been having sex. And, if you have, for how long?"

He looked at me sheepishly then. "Well, dad, you remember that weekend you and mom went to visit out of state friends a few years ago? That was the first night we ever slept together. In fact, it was Jenna that introduced me to the joys of anal sex. She fucked me with one of her strap-ons that weekend and I have loved it ever since."

I thought about what he had just told me. It really didn't surprise me much. I had been noticing little things between them for ages and had had the suspicion that they had been having sex. However, I had never found anything concrete to prove that they were. I was pulled from my thoughts by the sound of my son moaning. I looked over to see that he had pulled his pants down and was now openly masturbating. There, in his hand stood a fully erect, 9 inch monster. His hand was moving rapidly up and down his shaft and he was squirming in the seat. He looked at me and smiled, noticing the bulge that had grown in my own shorts. Thankfully, at that moment, I pulled up to the lake. There were no other cars around, so I silently thanked whatever god controlled these things. I put the truck in park and turned off the engine. I turned my full attention to the wonderful sight in the seat beside me. My son had turned himself so he was facing me as best he could. I saw him trying to manuever his hand to his ass, but he was in the wrong position. I was suddenly struck with inspiration.

"You know, son," I said as I reached down to undo my own shorts and pull them down to my ankles, "I have been having fantasies about this for a long time. I have wanted to feel your cock in my mouth and ass for so long. I want to taste your cum as it slides down my throat. I want to feel you explode in and fill my ass. I have dreamt about watching from above you as my rock hard cock slides in and out of your ass. I want you so bad!" As I had told him my desires, I had grasped my own cock and started to run my hand up and down my own shaft. My son was now moaning loudly and huffing with each thrust of his hand. I knew he was close to exploding as I saw that his balls were pulled in tightly against him. Unwilling to waste his cum, I quickly moved over to him and grabbed his cock. I grasped him firmly in my hand and slide my mouth down his length. As soon as I felt the tip of his cock hit my throat, I swallowed, allowing his entire length to enter my mouth. My son grabbed my head and thrust in forcefully and I felt him explode in my throat. I pulled back to the head and continued to move my hand up and down his shaft as he unloaded in my mouth. He tasted sweet, yet bitter. I loved the taste and wanted to get every last drop out of him. After his cock stopped twitching, I slowly removed my mouth from his tip and there was a loud pop as he finally feel free.

"Oh my god dad. That was amazing. I had no idea you knew how to suck a cock so well," he said as he moved himself into a more comfortable position.

"Oh, I am sure there are alot of things you don't know about me son. But, I plan on letting you learn first hand everything I can do this weekend," I said as I resumed my self-stroking.

My son looked directly at my cock and got a look of lust in his eyes. "Ok dad. It's not right for you to suck me off so wonderfully and me not to return the favor. Now, open your door and swing out your legs, but don't get out," he said as he opened his own door and slide out of the truck. Excited to see what he had in mind, I did what I was told, and my son was quickly standing in front of me. He leaned into me and pressed his lips to mine. I was slightly shocked at first, but soon gave in to the kiss and began kissing him back. His tongue was soon plunged deep into my mouth, as if he was searching for gold. I thrust my tongue into his mouth and did the same for him. I felt his hand on mine and knew he was trying to get ahold of my cock. I moved my hand and felt his soft, warm hand on my shaft for the first time. His hands were just as soft as his mothers and just as talented. He slowly slide his hand up and down my length, running his fingers lightly over the head. I began to moan into his mouth and my son pulled back.

"Mmmm, dad, your cock feels wonderful in my hand. Now lay back and let me show you what I have learned to do with my mouth." With that, I layed back and let my son do what he wanted. He slowly kissed his way down my chest while keeping up the slow stroking on my cock. When he stuck his tongue in my belly button, I laughed because it tickled. I heard a small chuckle escape him as he continued the trail down my body. His mouth and tongue felt wonderful on my skin. Everywhere it touched, I felt a jolt of electricity that shot straight to my cock. Finally, he reached my crotch and pulled away. He stood back and just watched his hand slide up and down me for a while. I was just beginning to feel the tingles of my orgasm when he suddenly thrust his mouth toward my cock. At first, he only took in the head, swirling his tongue around it and along the edge. My cock responded to his attentions by twitching. He suddenly slide the rest of the way down my shaft. I felt the back of his throat momentarily then I felt myself slide easily into his throat. My son opened his mouth fully and began to hum. The sound was muffled but it felt amazing. He started to try to pull of me into his throat and I heard the sloppy sound of his saliva. I was worried that he was going to choke himself, but he was apparently very skilled. Suddenly, I felt his hand on my tesitcles, which quickly squeezed themselves closer to my body. I felt the all to familiar tingling and knew I was gonna explode.

"Oh god, son. Keep that up. I'm gonna cuuuuuuummmmm!"

I felt the first jet escape me and I was lost. I grabbed the back of my sons head and thrust forward with my hips as hard as I could. My son pushed down and hummed steadily while I emptying my seed in his throat. I was moaning constantly until I finished. I felt the last stream erupt and began to pull back. I felt my sons tongue on every inch of me as I slide out.

I laughed at that. He laid down beside me and I wrapped him in my arms. We laid there until we both feel asleep. The rest of our time at the lake was spent much the same way. We did fuck in every possible place in every possible way. We both took our time loading things up, reluctant to go back to our "normal" lives. I had a feeling though, that neither of our lives would ever be the same again. I didn't tell him about the plan my wife and I had for when we returned. I was hoping he would like the surprise. When we pulled in the driveway and no one came running out to greet us, my son looked concerned. We both climbed out of the truck and walked toward the house. As we got closer, we heard the unmistakable sounds of my wife being pleasured. As soon as I heard it, my cock began to harden in my pants. I looked at my son and he looked at me. I nodded toward the fence gate and he nodded his agreement, so we both walked toward it. I reached out and slowly opened the gate. There before us on a lounge chair, my wife had her eyes closed, legs open, hands on her breasts and my daughter had her face buried in her pussy. My son and I walked through the gate, closed it and both took out our cocks as we watched my daughter slide a third finger into my wife to join the two that were already there. My wife was moaning and thrashing more then I had seen in a long time, so I knew she was enjoying what my daughter was doing. Both my son and I began to slowly stroke our cocks as we watched the show before us.

Without warning, my daughter pulled her head back slightly and I saw cum spew from my wifes pussy. Now, since I had been sleeping with my daughter since the night of her seventeenth birthday, I had known she could squirt. She had even said she could help my wife to do the same. I hadn't believed her, but I had told her if she ever got the chance to try, she should. She had obviously been right, since her face and upper body was now covered in her mother's cum. She turned her head to look at me and smiled.

"See daddy? I told you I could make her squirt just like me," she said as my wife looked at us.

"You were right baby. Now, I wonder if I can make her cum like that," I said as both my son and I removed our pants and walked toward the ladies.

"Hold on. Before anyone else gets to cum, I want to hear what happened on your little trip," my wife said as we joined them by the lounge chairs.

"Alright," I said. "But, after I'm done, you better be ready for the fucking of your life."

I waited for everyone to get comfortable. I was on the lounge with my wife and our children caressed on the lounge chair next to it. They were facing us with my son behind my daughter. I was sitting on the edge of the chair with my wifes hand resting on my leg. I told them of all the sex we had had. I gave great detail and, by the time I was done, my son had his hands on my daughter's firm breasts and his mouth on her neck. She was moaning softly and thrusting her hips back toward him. My wife had moved her hand from my thigh and had been stroking me softly for sometime. Her eyes, like mine, were glued to the scene our children were making and, when I finished, we both sat and watched them for a while. They must have realized we were watching because my son stopped kissing my daughters neck.

"Damn. That was one hot story. Now, why don't we all just quiet this game and fuck each other like we have been wanting to for a long time now," my daughter asked as she ran her hand behind her to grab my sons cock, I assume.

"You know, Jenna," my wife said as she sat up, my cock still in her hand, "I was thinking the very same thing." With that, she went over to our children and kissed our daughter deeply. They continued to kiss while my son reached out his hand and took one of his mother's breasts in his hand.

"Well, are you just gonna sit over there, or are you gonna come join the fun," my wife asked when she finally pulled away from our daughter.

"Oh, I am definately joining. I was just enjoying the show. The only problem is, who gets who first?"