Birthday Surprise

My wife, Shannon, and I have a great relationship with each other and an even better sex life with each other. We both were virgins when we married 16 years ago and have remained faithful to each other ever since. We have talked about many fantasies while having sex with each other, but it was just talk. Well, as a surprise for her 39th birthday, I decided to make a fantasy come true. I have a really good friend whose sister-in-law, Susan, is bi-sexual. My wife and I had met her at my friend's house and she had told him later that she was attracted to my wife. We have used Susan in our fantasy talk many times since meeting her. The weekend before my wife's birthday the kids were going to be staying at their grandma's house so Shannon and I planned a night out and some fun afterward. What she didn't know was that I was planning something a little different. I asked Susan if she would be interested in a night with Shannon and she eagerly agreed. I made arrangements for her to come over to our house while we were at dinner and to hide so that Shannon didn't know what was about to happen. When we got home from dinner I turned on the gas fireplace in the family room, dimmed the lights and put on some romantic music. We started by dancing with each other and kissing. We were already both getting pretty horny. I undressed Shannon and then continued to dance with her a little longer while she was completely naked.

We continued to kiss and my hands started to roam all over her body, playing with her already hard nipples and then making my way down to her pussy. She was soaking wet and let out a soft moan as I lightly touched her clit. I led her over to a chair that I had put in the middle of the room and set her down and tied her hands behind the chair and her legs spread apart and to the legs of the chair. Then I blindfolded her. She looked incredible sitting there. She has been working out really hard for about the last 9 months to loose some weight and get herself in shape. She has done an incredible job at it too. She is about 5'8" tall and weighs about 120 lbs. She has got an incredibly flat stomach, especially for having two kids, and long slender, smooth legs. She had a breast job done about 6 years ago, so she has absolutely perfect C-cup breasts. Her pussy was trimmed very short and shaved to about an inch wide. She was sitting on the front of the chair with her legs spread apart and her pussy lips were glistening in the glow of the fireplace. I slowly started kissing and caressing her body and as I was doing this, Susan quietly came into the room.

She was already naked and I just about came when I saw her naked body. Susan is about 24 or 25 and has a spectacular body. She has very dark brown hair and her pubic hair matches. She also had her pubic hair trimmed and shaved, but she had shaved the hair off her pussy lips. Her tits weren't as big as Shannon's but they were all natural and very perky. I went around behind Shannon and kissed her neck and played with her nipples. This always really gets her going. I always tell her that anyone could have their way with her if they just started by kissing her neck from behind then playing with her nipples and then sliding their hand down her pants. She wouldn't be able to resist and they could do anything they wanted with her. So I did that for a little while and really got her going. Then I acted like I was walking around in front of her, but I let Susan take over while I watched. Susan had her hair pulled back and up so as not to let Shannon know that another woman was having her way with her. She started out sucking on Shannon's nipples and then made her way down between her legs. Touching her with only the tip of her tongue, Susan started to lightly flick Shannon's clit. Shannon let out a gasp and a moan. I could already tell that it wasn't going to take her very long to cum. Susan continued to lick her pussy for about 2 or 3 more minutes and Shannon's body started to tremble and she was doing everything she could to grind into Susan's tongue. It was the most erotic thing I ever have witnessed. There was a beautiful young woman eating out my wife and she was starting to have an explosive orgasm.

I just watched my wife's face as she was cumming and she was in shear ecstasy. Susan continued to work her magic on Shannon's pussy and quickly brought her to a second orgasm. While she was having her second orgasm, I quietly moved around behind her. Susan moved up and straddled over Shannon and in front of her and I removed her blindfold. What a shocked look my wife had on her face! She was looking right into Susan's wet pussy. She looked up at her and then stuck out her tongue and started to lick Susan's clit. I reached around with my right hand and grabbed Shannon's tit and with my left hand started rubbing her pussy. She quickly had her third orgasm which triggered Susan to have her first. Susan was much more vocal than my wife. What an amazing time we had that night. I wanted so bad to have sex with both of them, but that didn't happen.

This night was all about Shannon's birthday surprise and I think between Susan and I, Shannon had more orgasms that night than she had ever had in one night in her life. I did get to jack-off in front of both of them as I was watching the two of them masturbate. I shot more cum than ever all over Susan's tits and stomach. Susan left that night after we were all totally exhausted and Shannon and I went to sleep. The next morning Shannon was all over me and we had the best sex with each other than we had ever had. Nothing has been said about that night, but judging by the number of orgasms that she had that night and the enthusiasm with which she went at Susan and the sex we had the next morning, I'm guessing that she enjoyed the surprise.