When I Kissed My Wife's Sister

When I first kissed Erica, it was probably a mistake. But by the time I was sucking on her tits, we were fully aware of what we were doing.

“Let’s have another round of tequila shots! Just us sisters!” She had declared a few hours earlier.

Any normal evening at my in-laws was incomplete without finishing a bottle or two of liquor, and that night they had a party going on so alcohol was flowing.

“Take a picture Aron!” She screamed at me.

I bristled.

My goal that evening had been to stay far away from her.

Erica was my wife’s youngest sister, and an absolute asshole. She was rude to everyone, especially to her family, and I found her extremely whiny and childish.

I glanced at her.

The short cotton dress she wore rode up high as she sat cross legged, not caring who saw her thighs and her black panties that were visible. Her arms rested over her head in a careless posture, exposing her underarms and a great deal of her side boobs. I realized she had borrowed that dress from my wife Diana, who was taller but skinnier.

Erica had been sitting that way at the dining table all evening, having one drink after the other, complaining about work, her colleagues, talking down to her cousins, and giving unsolicited advice to anyone and everyone. Nobody dared to stand up to her.

What a high maintenance bitch, I thought. Thank God my wife Diana wasn’t like that.

Diana said one time that Erica had a heart of gold, and that her outer bitchy persona was a disguise.

“It’s a very good disguise, I have to say.” I had retorted.

I could never forget how Erica had yelled at me one time, in front of the whole family at that, only because I moved her phone a few inches to sit.

And that evening she was handing me that very phone to take photos.

“Bitch!” I swore under my breath.

Taking photos and posting them on social media doesn’t make one a nice person. The spoiled brat needed to be taught a lesson, but I did not want to create drama.

I took the phone and snapped a few pics.

“Thanks.” She smiled at me.

I turned brusquely and walked away to hang out with their cousins in the living room.

“Here. I noticed you didn’t have a drink.” I was surprised when Erica followed me and handed me a scotch, my usual drink.

“You take good photos.” She smiled again and then turned to her cousin, Vik.

“Hey Vik, I want a photo with my brother in law. I don’t think I have a photo with him tonight.”

How vain, I thought. I posed reluctantly and quickly moved away.

But she came up very close and looked at me with unwavering eye contact. I could tell she was quite drunk.

“Hey, do you want something to eat?” She asked, still staring at me.

Her big eyes were coffee brown, something I had not noticed before, and they shone brightly as evening sun hit them directly. The summer heat was making her neckline glisten, a few hair strands stuck to her skin. Her smell felt so sweetly familiar.

“No, I am fine.”

“Are you sure? You have been running around since breakfast prepping for the party. Let me get you something?”

“Thanks. I am OK.”

“I will get you a snack plate, just in case.”

I saw her walk away and thought how likeable she was when she showed that caring side of hers. She was more womanly in those moments than even my wife.

I had never really been sexually attracted to her though. Petite skinny types like Diana usually made my heart thump, not athletic types like Erica. But all that changed last Fall.

Erica was visiting us and that evening she was changing carelessly without closing the door to her room. I saw her bare back, side boob and possibly some nipple as I walked by. Our eyes met, and I continued walking away. No words were exchanged but I saw her differently ever since.

I started noticing her body, especially her legs. She played competitive tennis in college and it showed. Her sexy hamstrings added fullness to her thighs which were a treat to watch when she wore shorts, mini dresses, or tights, which was often. Her amazing calves and full hips made me appreciate a thicker womanly body. Unlike Diana, Erica still worked out regularly, and sometimes we worked out together in the basement in awkward silence when she visiteed me.

Back to the party. By 10PM, all the guests had left but the family hung around having after party drinks. Everyone was drunk.

The parents retired to their bedroom soon. And Diana as usual had a headache. She mentioned she was hitting the sack as well and gave me some kind of directions but Vik and I had finished the whole bottle of scotch and it didn’t register.

I only remember watching Erica walk away as she yelled, “I am down for the count guys!” I glanced at her and saw the outline of her navel and her panty line through that thin ribbed cotton dress.

Vik and I were last to retire. He crashed on the couch and I went to the guest bedroom where Diana and I usually stayed the night at our in laws.

I undressed completely, not caring that I was a guest and did not even close the door. Clearly drunk, I got in bed and realized I was hard. Suddenly, the image of Erica’s thighs flashed in my mind.

I realized I wanted to fuck. And fuck hard.

I grabbed at Diana but found her slumped over in her nightgown with her back towards me.

“Baby?” I whispered, but I didn’t get any response.

I decided to let her sleep. She had a low sex drive and didn’t she tell me she had a headache?

But I was super horny.

I decided to jack off.

My legs spread, I started stroking my cock, imagining Diana sucking my dick. She rarely did that, and it was always weak.

Suddenly, I remembered Erica’s wet cleavage from earlier and became super hard. I was surprised, but continued to roll with it. By then I was jacking off so hard that the bed started to shake a bit.

“Mmm...” I heard Diana stir. I continued jacking off in the dark but felt her turn around and sit up a bit.

“Hello?” She said groggily.

I slid close, grabbed her and pulled her firmly towards me.

“Huh hey...mmm”.

Before she could say anything, I had forced my mouth on hers, kissing her hard. Her boobs felt small but perky as I squeezed them. She seemed to be resisting a bit, which was unlike Diana who usually did not show much passion one way or the other.

My hands slid under her night dress and when I felt naked skin instead of panties, my cock jumped. I forced my hands down her crotch and she whimpered in my mouth but squeezed her legs tight. They felt strong and muscular.

I grabbed her body and kept mauling her, my tongue assaulting her mouth and my fingers smashing her pussy. She thrust her hand at me but I grabbed it with mine and put it on my dick and started fucking her fist.

What finally stopped me was that I felt something on her face.

Glasses.

Diana never wore glasses.

Abruptly, I pulled my hand away from her pussy and looked at that dark silhouette next to me. She looked like Diana but was clearly not Diana.

read part 2 here