A Birthday Surprise in the Living Room

Shelly part 3.
After Shelly kissed my wife the second time next to the car. My wife looked at me in amazement. We got in the car to leave, I asked my wife if she wanted to go out drinking, or go back home and enjoy a quiet evening.
We went home.
We all got comfortable in the living room. I got us some wine. Light some candles . Shelly set next to my wife. I set in the chair.
It didnt take long and Shelly leaned over and gave her another kiss, then said I hope your Birthday is special. My wife was receptive of the kiss then she kissed Shelly back.
That's how it started.
They started making out like lovers. My cock was straining for release.
Shelly was the aggressor and took charge. She pulled my wife to her feet and took her hand leading her to the bedroom. I stood to follow but Shelly asked me to wait a little while.
My wife turned to kiss me, Shelly stepped closer and kissed me also. My wife winked at me, giving me the sign that she was ok with Shelly kissing me.
They walked away. I was dieing to go in there. I waited about 20 minutes. The lights were out with one candle burning. I had to let my eyes adjust. I set on the chair and watched.
My wife was laying down. Shelly was on her knees kissing my wifes nipples.
Shelly was in her bra and thong panties. Her ass was beautiful.
I pulled my clothes off as quietly as possible.
Shelly moved between my wifes legs. She started licking my wifes pussy. I stepped up to the bed and kissed my wife. She was relaxed and enjoying Shellies tounge dance. I stepped away to let it happen. And watch.
My wife soon clenched the sheets and had her first orgasm of the night.
Shelly stayed on her pussy and brought her to the second orgasm before laying next to my wife.
I got on the bed and kissed my wife. Shelly watched and said she was jealous of my kisses.
I leaned over and kissed her. This time I kissed her with passion..
I started kissing down Shellies body as my wife started kissing Shelly.
Shelly had a diffrent scent than my wife. It was intoxicating.
I started kissing and licking her pussy. Shelly had a big swollen clit. I started sucking on it and her juices were flowing out.
Shelly asking me to suck her clit harder. With her big clit in my mouth I sucked and ran my tounge all over it.
Shelly had a powerful orgasm holding my hair. But then pushed me away.
My wife got on all 4s and I started fucking her as she started eating Shellies pussy.
I fucked her to an orgasm and mine was on its way.
Shelly asked me to shot on my wifes ass and I did. ( I didnt know Shelly didnt like the taste of cum, and wanted to eat my wife pussy again).
This went on for half the night.
My wife was glowing for a week.
Shelly started doing everything with us. We were together all the time.
My wife and Shelly had sex more than I did with my own wife. They layed on the couch cuddling all the time. Even as i set in my recliner.
One time i fucked Shelly when my wife wasnt there. She got a little mad about it. So we never did it with out her there. But they did it all the time with out me there.
After several months i started getting left out. I guess i was getting jealous. But they started acting like a lesbian couple and i wasnt needed.
When the sex with them stopped then my wife found excuses not to have sex with me. I put up with that for a month or so. Then i told Shelly not to come over one night. I wanted to talk to my wife.
My wife apologized and said she got to wrapped up in all the attention Shelly was giving her. And didnt know she was neglecting me.
She told Shelly to give us some time alone.
Shelly got to be a real bitch with me. I finally told her not to come back.
My wife didnt like being caught in the middle. She said she would stop the sex with Shelly. But i caught her 2 times over at her house and lied about it.
I had enough and gave her the ultimatum. Stop or move out.
25 years later we are together.