I (30M) ate out my sister-in-law (27F) with my wife in the next room

So this takes place a couple months after our camping trip and by now my sister-in-law and I had shared some hot moments. I shared these in previous posts but at this point I was thinking about her pretty often. My wife isn't the most sexually active so these memories are my mind a lot..

So this time, my wife and I went to visit her sister-in-law at her small apartment in Chicago. It's a long weekend and she just rents a 1 bedroom place so we knew it would be fairly close quarters. My wife and her are super close, and so it wasn't something we worried about at all.

We flew in on Friday and had a great time, good food, seeing some of her favorite spots, and then had a chill Friday watching a movie together at her apartment. We all cuddled a bit but nothing too crazy. The next night though, we couldn't help ourselves.

On Saturday we had a full day but ended with some dinner and bar hopping. It was super fun, we drank a good amount, and then my wife, her and I ended up back at her apartment sometime around midnight where we opened some more wine and played switch games. Pretty shortly after, my wife was ready for bed so we made up our bed in the living room space and the sister-in-law went into her room.

Now, with my wife snoring next to me, my heart was already racing thinking of the previous experiences I'd had with her sister-in-law and just about right away I could feel myself getting hard, fast. Really fast, and to where I could feel myself pulsing. I slide my underwear off and laid there, imagining her sucking my cock, stroking me..

My heart pounding, I decided to make a move. I slowly got up and walked over to her room. I opened the door quietly and immediately she looked up at me from the glow of her phone screen with one hand in her panties. She smiled and set her phone down, her fingers moving under her panties. I know since our last experience she'd been thinking of me too.

I closed the door behind me and walked over, immediately sliding her panties down slowly and beginning to lick all around her. She pulled a pillow over her mouth and I worked my tongue down and felt the warmth coming off her pussy, already soaking wet. I slide my tongue along her and pushed in, widening my tongue and working up and down. Finding her clit and going side to side, I loved her taste.

She was starting to move her hips and pull my mouth closer, grinding against me. She moved faster and I kept up, licking and sucking, drooling. When she finally cam, I could feel her pussy contracting, extra wetness all over while she shoved the pillow even harder over her mouth.

She pulled at my head to get me up, then my hips closer to her until I was sitting on her chest. She eagerly grabbed my cock and sucked intensely, working my shaft while she did. After getting so worked up tasting her I couldn't help myself and exploded after just a handful of seconds, filling her mouth with warm cum.

Sinking back, we both couldn't help the huge smiles on our faces, and I quietly snuck back out of the room, slipping into bed again next to the snoring of my wife..