My wife, Nicole and I have been married for 7 years and have three wonderful children. We live in a smaller town and most people here are close friends and lots of family. When our first son was born he was diagnosed with a syndrome and that’s when we found out that both of us carry a gene. After our second son to be diagnosed with the syndrome when decided that I should have a vasectomy to prevent more children to be born with a serious medical condition.

It has certainly been a hard road, being a parent of medically challenged kids. Our sex life became monotonous, and fewer times between.

During our last romp at it, I asked in an erotic way, “Do you want me to knock you up? Huh? Put another baby inside you?”

The idea of impregnating her was always a huge turn on for me Talking this way almost made me cum right then. It definitely startled her though and it was right when she was climaxing, so I thought it must have turned her on too. I was quickly mistaking, because she stopped hard and in a very serious non sexual tone said, “What the fuck? You know we can’t have anymore, why would you tease me like that?!”

Wait, did she just say ‘tease’? I thought.

She rolled off me, even though I hadn’t finished, and went to the bath room. When she got back I was in my shorts again, when she said, “Do you want me to get pregnant again?”

I was slightly taken back. Is she mad at me? Where is she going with a question like this?

“Um, well yea, I always wished we had at least one healthy child, you know for future generations ... but I know it won’t happen because I’m sterile now.”

“But I’m not” she said like a hammer in a loud voice. The words almost echoed in the quiet room.

Finally what seemed like forever I bought the courage to pursue the conversation.

“How do you suppose we do this? Fertility clinics are too pricey”

“There are other ways”

“Are you saying what I think your saying? Do you want to have another baby, but with another man?”

“No! Not at all! Well ... kinda. I guess he’ll have to provide that part we’re missing, but it’ll be our child.”

Wow, I thought, this is actually happening. This has been a fantasy of mine for some time. During our first year of marriage, she cheated on me and wound up pregnant, she didn’t know who the father was, either me or him, but sadly we lost the baby during the first trimester. I was ready for a divorce after I found out but stayed with her for the kids. That was the only time that I know of that she cheated. Since then I have forgave her to keep face, but deep down the hurt scared over with taboo fantasy that has been growing for some time now. What she doesn’t know is that I have a deep library of crazy fetishes tucked in my mind including cuckolds. So if she’s willing to travel with me in this wonderland she doesn’t know how far this white rabbit can take her.

“You want me to let you fuck some other guy and have him knock you up, then cuckold me and make me raise it?” I said this in a tone to let her know who was going to be in control.

“Never mind! I don’t know what I want, I’m sorry.” She started to get upset. She came and sat on her side of the bed with her back to me and her face in her hands. She wasn’t crying, but you could since the embarrassment of the idea she had said out loud, unknowing that I planted that seed first. I set up and placed my hand on her back and rubbed it. I came up behind her and got close to her ear as I rubbed her shoulders and softly spoke, “it’ll need to be someone we trust not to tell, or a complete stranger.”

“I know, that’s the flaw in this. Who in the hell do we know that would be up for something like this? I certainly can’t chance it with a stranger, I don’t believe I could bring myself to do that”

One of the deepest of my taboo fantasies is incest, especially that idea of pregnancy as a result. I have never experienced it, and because we are both carriers of this genetic mutation, there is know telling who else in our family has it too. Except one. Nicole’s grandfather. Technically he is her step grandfather. Shortly after her grandmother had her mother, the father of her mother ran off. The grandmother re-married a few years later to William. So technically there is no blood relation.

I was ready to set my trap now. I would have to convince her some how to let her Grandfather fuck her and impregnate her.

“Who are you thinking about?” I asked her.

“I don’t know, it’s weird to actually think about having sex with someone else. Especially someone I know. And it can’t be too far from your build and eye color and hair type. The baby has to be convincingly yours”

“Wow, I’m not going to lie, this is actually turning me on. The thought of you having sex with someone right in front of me...”

“Oh no, huh uh. I couldn’t do that in front of you! It would be too weird! I don’t know about that”

“What the hell? Um, no I will be there for the whole thing. 100% or no babies”

“No” she said and put her hands back over her face. “Ok” she muffled through her fingers. “But who?” She asked.

“Would you be up for a family member to help out?”

Her hands dropped suddenly with a slap on her naked thy. She slowly turned to me with an open mouthed shocked face and I cut her a devilish grin.

“And who do you supposed out of your family would be up for that?” She said sarcastically.

“I wasn’t talking about my family...”

“Oh ... wait, it’s sick. That’s incest! I can’t do it with my family!”

“What about Papa Will?” There! It was out. The pregnancy seed has been planted and I just watered it with incest. Her mouth shut, like she was thinking about it for a second. She then stood up went to the dresser and pulled out her night clothes, and said, “I’m done talking about this for tonight” and came back in bed and fell asleep with her back to me.

I laid there for what felt like eternity and thought about her fucking her grandfather. Let me tell you a little about the man. He’s 84 years old to begin with. I think the idea of him fucking at that age is so hot. Nicole just turned 30 and still looks 21, so that mash up gets me so hard. He’s a sweet old man. He never fathered any children of his know, but raised Nicole’s mother and aunt since they were babies, and helped raise Nicole too. Nicole’s grandmother passed away before I met her, so she’s never been apart of my picture. He regularly attends church and pretty much stays quiet. He loves the great-grandchildren and is an overall loving huggable man. He would do anything of his granddaughter. But would he do this? I’m sure he’s still fertile, but can he even get it up?