Chapter 1

Caution: This Sex Story contains strong sexual content, including Ma/Fa, Consensual, Romantic, Cheating, Pregnancy, .

Desc: Sex Story: Chapter 1 - Alex is a man who has it all. A great wife, a good business, all he needs, except for children. Then his wife makes him a deal, she'll have children, IF he gets her married sister pregnant. This is how it all began and ended.

"Oh and my sister is coming over in about an hour so go get ready."

That's what started it all. After a long list of jobs that my wife of the last 4 years gave me, she told me her sister was coming over. Now don't get me wrong, I've always thought the world of Amanda. Even though she is totally unlike my wife.

Well let me back up. My name is Alex Brooks. At the time of this story, I was reaching the--ahem--ripe old age of 27. Now I'm not a movie star or anything, but I have been told I am reasonably good looking. I'm around 6' tall and kept myself to a 'fighting fit' of 200 pounds. I was beginning to see where the family history of a receding hairline was kicking in, and where the family spare tire was trying to take hold. Needed to go to the gym more.

Now my wife, Andy, didn't have that problem. At 5'11" and a crisp... well I like to keep breathing so lets not talk about weight. Let's just say that to me, she was better looking then those swimsuit models. Add in her long, light brown hair and blue eyes, and no man with hormones could help from talking a second look.

We met right as I was leaving college. She was an incoming college senior and was working part time in a realtor's office. I was trying to apply for a job and she told me that they were not hiring. Then she told me that she was expecting to be picked up at 8 sharp.

"Excuse me?" I was a bit baffled to say the least, having just met this girl, and, well honestly, I was distracted by her cleavage.

"You heard me, 8pm tonight and don't skimp on where you take me. You are making your first impression," she replied while handing me a paper with her phone and address. Well a year later I was waiting at the altar for her. I never even had a chance.

That's when I met Amanda. She was a sophomore in the same college that Andy was in but was only going to make their parents happy--she always wanted to be a stay at home mom. Now Amanda is around 5'6", and has the puppy dog eyes that can melt an iceberg. Add in her infectious laugh, a trim body matched against Andy's athletic one, and--the one feature they share--a set of c cup breasts, and you have a marvelous woman.

How do I know her breast size? I'll get to that.

That's also where I met her then future and now in reality husband, Thomas. That bastard. Oh yeah I owe him. He 'gave' me a job, and now has invested in the finance company I now run. But that doesn't mean I have to like the condescending bastard. Always talking down to everyone. If you listen to him for long enough you think that he taught Christ how to raise the dead.

The fact that he lords over me that it's 'his' connections that keep my business afloat, and that 'he' is the one who made everything that I have possible--well, you can get my opinion of him.

Not to mention the way he treated Amanda, like some sort of... well... trophy. Thing is, she honestly loved the fat, balding bastard.

And wherever she went, he went "to keep an eye on her, Alex. Can't be too careful. Wives are just whores who haven't slept around yet." Her only reprieve is an occasional visit to Andy. And half the time he comes with her here as well. See, I have satellite TV with the sports package. He has never gotten anything past basic cable. "Too expensive," says the millionaire.

Now my Saturday was shot. I was hoping to do some chores, watch the game, have a good dinner and maybe break a headboard or two with the wife. Now he'd be here, eating my food. Telling me how HE would have cooked it. Insisting we watch HIS alma mater play. And to beat it all, I'd be so pissed off; I wouldn't feel frisky when they left. Another sexless night--all thanks to my in-laws.

What a time to lose my voodoo doll of him.

With a sigh, I turned to Andy. "Honey do they have to come over? I was really looking forward to it being just the two of--"

"Oh he's not coming. Just Amanda. He got tickets to see his team play this weekend and didn't want her around so she's staying the night with us."

Ever swing at the ball, connect, and watch it just fly to catcher and see him pick it off like it was nothing?

"Oh great." Then something struck me. "You said 'get ready'--for what?"

"I want you to get Amanda pregnant," Andy said, then turned and picked up the laundry she was separating and took the load downstairs.

I think I was trying to find the hidden cameras.

Chasing after her down the stairs, I caught her as she opened the basement door.

"Whoa, now, wait one minute. What? You want me to knock you sister up? Is this a joke?"

"No. Look, Amanda and Thomas have been 'trying' for a while but he has no idea how to treat a woman in bed, and wipe that look off your face, mister. She tells me everything. He honestly only wants sex when there isn't anything better on TV."

As she was speaking I could hear the fucker in my head, "Don't get them used to it buddy boy. Hell if you do and you get tired or have to work late one night, they'll run off and fuck around on you. Women can't be trusted out you know. Hormones." Dumb fuck.

"But..." I followed her down." Why me? And how long have you been planning this?"

"She's been telling me about her problems for a while now. I thought it was a logical choice. It took a while to convince her but I brought her around, don't worry."

"Don't worry? You're asking me to cheat on you with your own sister and make a baby with her!"

"It's not cheating... Jesus you men sometimes. And I don't want you to make a baby."

"That's what it sounds like to me!"

"I want you to make at least five."

Ok now I knew that I was in the Twilight Zone. Here's my lovely bride, the woman I love more than anything in the world telling me not only to sleep with her sister but to breed with her like rabbits.

"Andy, I will not have an affair on yo--"

Her slap stopped the little speech I had quickly mentally written. My mind went completely blank.

"Don't you ever even think of calling this an affair. She wants kids and that bastard won't give them to her. So I am giving you to her. If you want in THESE pants you will get into hers. Ok?"

I stood there stunned, not believing she had just hit me! I mean she actually hit me. She usually just bowled me over when we argued but what was this? I knew she was tough in an argument but she'd never actually hit me?

"Look I thought this up, ok? This is not a trick; I really want you to get her pregnant. In fact after you start her family I was thinking that we might start on our own."

Now this got me interested, not for the idea of sleeping with Amanda, but I have wanted to have kids with Andy since the honeymoon, and now she was saying she was ready.

"But I don't know that I can," I protested. She lifted that hand again, so quickly I tried to explain, "I mean, I will be thinking of you. I love you. I don't want to injure that in any way. Won't you get jealous?"

She lowered her hand, thank god, and looked at me like she hasn't thought of that. Just as I thought I'd dodged the bullet, her eyes lit up.

"I know. I will be there every time you two do it to show you that I am not jealous."


"Not a threesome, so get that out of your head. She's my sister. No, while you two are doing the horizontal lambada, I will sit at the dresser and watch. Just to prove that I am serious. And look this isn't a trick. If you want I can draw up a little contract between the two of us and say that I am letting you do it. Just so you don't think I am trying to get you to sleep with her for a divorce."

Did I happen to mention that she was a paralegal?

"You know I never even thought of that. You're confusing me with Thomas."

"Oh I'm sorry honey, I know you are such a better person than him." She cooed as she took me in her arms. "But she wants babies, and he doesn't seem that interested. And I guess she could go out and have an affair but she wants them all to be truly brothers and sisters, all from the same man. And I can't think of a better person to father them than you. So... will you... please?"

Looking into those eyes I knew what my answer would be, but I tried to get one more thing.

"Ok." Andy squealed until I held up my hand, "BUT you have to stop the birth control pills right now."

"Already done. I've been off them for about three weeks now. I really am ready to have kids with you."

GREAT!! But I had to try for one more. "AND we will have sex, today. In front of her." She started to protest but I stopped her, "So she knows that we are one and are truly in love. So you can show me that you are not jealous and I can show you how much I love you."

Tears swelled up in her eyes as she gripped me around my waist. Damn this girl is strong.

"Oh I love you! Ok, but you better be ready, mister. You have to satisfy two women today!" she let me go, breathe man breathe, and ran up the stairs, "Get ready, Hon!"

Now how do you get ready to seduce your sister-in-law?

For the rest of this story, you need to Log In or Register

Story tagged with:
Ma/Fa / Consensual / Romantic / Cheating / Pregnancy /