Childhood friend came to visit my wife and me

I am very lucky that I have always had platonic female friends. Not weird friend zone stuff just actual friends. I do have one friend from camp (Shira) that I've known for 20 years. We've never lived in the same state but we have known each other for so long that of course we've sent nudes and sexted and had phone sex, but only when we were both single.

My wife and I have a great sex life, every time we have sex it's just the best. We've always been on the same page and are just always horny. We've had a few MFF threesomes but have never tried to bring a friend into it because that's a line we didnt want to cross.

We live in a major metropolitan city and have a 2 bedroom apartment, so we host friends multiple times throughout the year. One of those times Shira came to stay with us. I knew what I wanted and I was pretty sure I knew how to get it.

My wife and Shira don't know eachother very well but have always had a nice rapport. My wife had no idea that Shira knew what my cock looks like or that I know how she loves giving head and getting fucked in the ass. We never spoke about those things once one of us was dating, so it had been half a decade at least since the last time. Shira did recently tell me that she had a lesbian experience and that she loved making her date cum from eating her out. I figured there was only one reason why she would tell me that

The three of us went out to dinner and had a really nice time. We took her to one of our favorite sushi restaurants in our neighborhood. The drinks were flowing and Shira was telling us about her recent dating and how tough it is out there. She also said she hasn't gotten laid in awhile because she was tired of mediocre hookups, I looked at my wife and said "you wouldn't have married me if our hookups were mediocre" and Shira said "I'm sure"

We got back to our apartment, opened another bottle of wine and smoked a joint. We went into our respective bedrooms and I jumped on my wife. I put my hands and mouth all over her and she was trying to muffle her moans but I told her to be loud. I was eating her like it was my last meal and we started hearing moans coming from the other room. I put her on her back and put her ankles on my shoulders so I could get extra deep, we both started moaning and before we knew it our door opened and there Shira was naked with her hand rubbing her clit, we invited her onto the bed and we all started playing. We all took turns being in the middle, I had them sitting on my face and my cock and then I fucked one from the back when they ate the other out. We just melded into a fuck puddle, and could not get our hands off of eachother. My wife's one threesome rule is that I have to cum in her so after I finished Shira went and ate all of it out of her.

The next day we cancelled our plans and all just kept fucking each other. We had the best time and I think about it a lot. She may come back and visit us again in the spring.