My Sister-in-Laws, The Beginning. [MF]

Lately I have been reminiscing on some past relationships and adventures. Through the good and the bad, they have all led to who I am now. I decided I want to share my stories and I welcome thoughts and feedback about it.

My first story was quite exciting and tumultuous as it happened. There are a lot of mixed feelings for me, even knowing I was wrong.

It boils down to my wife, gf at the time it started, has two younger sisters. Over the years I have known them, I have fucked and been a lover to all three at some point. And my wife is the only one unaware.

We had been together when it all started for about two years, living together for one. We were both 24 and worked full time jobs. My gf, Amy, had mentioned her youngest sister, Samantha, needed a place to stay for a while.

Samantha was a mixed bag. 18, never employed, had been couch surfing since she turned 18, mischievous on a good day, and she sexualized every encounter in some form. I had never found girls younger than me especially attractive. Amy was the first woman I dated younger than thirty. But Samantha had a charm to her that was infectious in a roguish way.

I agreed she could move in and we would help her get on her feet and figure out how to be independent.

Now for a montage of a few months. Samantha was a social butterfly and would talk anyone’s ear off about anything. Hobbies, cars, sex. What have you. She also was unmotivated to help around the house, look for a job, or go to college.

But every time Amy was at work Samantha got more and more detailed discussing her sexual exploits and interests. At first I either ignored her as the rambled or only offered advice about safety concerns. And even when Amy was home Samantha’s clothing got skimpier and skimpier. More than once I found Samantha laying on the couch naked and sexting guys on her phone after taking a shower while Amy was at work and she thought I was asleep between night shifts.

We discussed with her that she was being inappropriate, but it went in ine ear and out the other.

Then one day she apparently got a little more daring. I was in the shower and she walked in the bathroom and sat down. She started talking while looking at her phone, not even glancing at me and ignoring me telling her to get out. In exasperation I gave up and talked to her while I continued my shower. I’m not shy, I just knew this was weird.

We talked about random things that crossed her mind and then she left.

This became an expected behavior. While I showered she would come talk to me. More and more watching me shower as we talked. It was hitting a point we were borderline indifferent nudists around the house together
.

Then came the morning. Amy had just left for work. I was in bed in my boxers well and truly asleep. I awoke to someone climbing in bed and pressing to me. Groggily I pulled her me, noticing the bare skin of her ass pressed to me. My hand cupping her small breasts reflexively.

And a soft moan escaped as her ass and hand teased my morning wood pressing her.

“I just wanted to be held. But somebody wants more.” She whispered. I responded with a grunt. And pulled her against me tighter. She moaned again, and pulled my cock free, sliding it between her thighs and along her already wet pussy. She slid along me in small motions. Toying her clit. Then shifted and took the tip inside.

“Oh, shit.” She hissed, grinding on the thick head pressed just inside her tight pussy. By this point I was alert. I realized fully who was in my bed slipping my cock in her.

I was always freshly woken up, horny as fuck, and had a willing partner already stretching around me. With a mental fuck it that would change our lives, I rolled over on her, pinning her face down.

I was mad, aroused, and ashamed. So I took her hair, told her she was a bad fucking girl, and I pushed inside her. She screamed. Loudly. Her pussy clenching around me like it wanted to rip my cock off. I pulled out, smacked her ass and eliciting a whimper, and slammed back in her.

She cursed. She clawed at the bed, bit the pillow, and tried to claw me behind her.

“No. You asked for this. Now you’re going to accept it. Say cucumber and this all stops.” I slammed back inside.

“Otherwise, you are now mine. And you will listen from here out. Understood, little slut?” I pulled her head back by the hair, making her look in my eyes as my cock teased her cervix.

“Yes, sir.” She said. With a fucking smile. That made me even more mad. And ashamed. She had played a nasty trick on me. But I wanted it. And accepted it. And after two months of her talking my ear off about her sex life and kinks she thought she liked, I knew all I had to. She wanted to be a live in fuck toy. Worshipped and used. Never having to work beyond being a living sex doll.

As I fucked her on the bed I shared with her sister, I made a plan in my head. If I was going to be a shameless bastard, it was going to accomplish something beyond meaningless kinky sex.

Samantha was going to be trained to be independent. While being my live in willing sex slave. And I would deal with my guilt later. Hopefully on my own terms, in a way that I could salvage things with Amy. After Samantha moved out in her own.

“I just wanted to be held. But somebody wants more.” She whispered. I responded with a grunt. And pulled her against me tighter. She moaned again, and pulled my cock free, sliding it between her thighs and along her already wet pussy. She slid along me in small motions. Toying her clit. Then shifted and took the tip inside.

“Oh, shit.” She hissed, grinding on the thick head pressed just inside her tight pussy. By this point I was alert. I realized fully who was in my bed slipping my cock in her.

I was always freshly woken up, horny as fuck, and had a willing partner already stretching around me. With a mental fuck it that would change our lives, I rolled over on her, pinning her face down.

I was mad, aroused, and ashamed. So I took her hair, told her she was a bad fucking girl, and I pushed inside her. She screamed. Loudly. Her pussy clenching around me like it wanted to rip my cock off. I pulled out, smacked her ass and eliciting a whimper, and slammed back in her.

She cursed. She clawed at the bed, bit the pillow, and tried to claw me behind her.

“No. You asked for this. Now you’re going to accept it. Say cucumber and this all stops.” I slammed back inside.

“Otherwise, you are now mine. And you will listen from here out. Understood, little slut?” I pulled her head back by the hair, making her look in my eyes as my cock teased her cervix.

“Yes, sir.” She said. With a fucking smile. That made me even more mad. And ashamed. She had played a nasty trick on me. But I wanted it. And accepted it. And after two months of her talking my ear off about her sex life and kinks she thought she liked, I knew all I had to. She wanted to be a live in fuck toy. Worshipped and used. Never having to work beyond being a living sex doll.

As I fucked her on the bed I shared with her sister, I made a plan in my head. If I was going to be a shameless bastard, it was going to accomplish something beyond meaningless kinky sex.

Samantha was going to be trained to be independent. While being my live in willing sex slave. And I would deal with my guilt later. Hopefully on my own terms, in a way that I could salvage things with Amy. After Samantha moved out in her own.

Source: reddit.com/r/gonewildstories/comments/t79h36/my_sisterinlaws_the_beginning_mf