In retrospect, it was clear when cuckolding and hot wifery entered our marriage. Teak had been with several men, including me, during her college days and enjoyed some wild times. But, when we married, she became the model faithful wife. There were times when guys hit on her, but she always shrugged them off. Then two children came along. That stifled our love life in a big way. She just wasn't very interested any more. Oh, Teak still was intimate with me, but the enthusiasm was gone. No spark, no fire. Until she decided to go to graduate school. This was 12 years into our marriage. I was stationed on a staff in Norfolk, the kids were 7 and 8 and in school and she had time to do what she always wanted to do - pursue her PhD. As it turned out, she pursued a bit more than that. Being back in school, she met a whole new group of friends - younger, more open, eager to explore new adventures and found it exciting. It was obvious that she really enjoyed the time spent with them and the excitement was visible. She established a routine with her new friends. Friday nights were party nights - right after classes, the party started at someone's house or apartment. Teak always went and stayed later and later. Something else changed also - her appearance. She updated her wardrobe - current styles, shorter skirts and dresses that showed off cleavage, new panties and bras, heels, shorter shorts, tighter blouses or shirts. Where she once wore skirts that were mid knee, now they crept higher - to 2 or 3 inches above. Her panties went from plain cotton briefs to feminine bikini - often see-thru. It should have started to dawn on me then that something was causing this, but I was just too happy to think about it. Teak also started to show an interest in sex again. Her enthusiasm picked up and she even became a little assertive. For the first time she seemed to enjoy oral sex and even directed me in how she wanted it. The next hint was a Saturday night. We were on the living room floor and I was fucking her from behind when she said that all the men considered her a staid old married mommy and she didn't like it. She wanted them to hit on her, but they wouldn't. She told me she thought it was because she was older than they were and she intimidated them. Then she smiled and we went on... I finally got to go to one of the Friday night parties. It was at a bachelor apartment with a hottub. Teak didn't use the tub that night, but I did. Very quickly, it was clear that this was a hot hottub - more touching and caressing than tubbing. Teak stayed inside, but I noticed she had a lot of men talking with her, usually two or three at a time. I saw a few nods and then head shakes "no", but always with a smile. On our way home, I asked her about her circle of friends. She explained that they were just sharing some jokes and were just "good buddies". Things went their way. At Teak's insistence, we installed a hottub. Soon, the parties stopped at our house too. Things seemed okay, lots of booze, some smoke, but nothing more - until the night that Teak and her boss (she was now working in a hospital laboratory as part of her studies) left the tub within minutes of each other. When I saw them again, she was in a robe that zipped up the front and the zipper was halfway to her navel. It was obvious that she was naked underneath. Blair showed up in a terrycloth robe also, also naked underneath. His was short and when he walked his cock and balls were visible. Teak was excited, animated, flirtatious, and talkative. After everyone left, she was also very aggressive, fucking me and having serveral orgasms. Still, no connection. Over the next few months, I noticed that she would occasionally come home without her underwear - sometimes no panties, sometimes no bra. When I asked, Teak would explain it by saying that she didn't wear them that day, which was a big change! Finally, the light bulb started to glow. Much of her conversation was about Blair and what a great person he was and the things they talked about. This went on for several months, when, during a session in bed, we started to talk about fantasies. I admitted that I thought a threesome was about the most erotic thing going. To my surprise, Teak agreed with me. I asked her if she meant it and she looked me in the eye and said "Absolutely". I was surprised to say the least, but also incredibly excited by the conversation. I asked who she'd consider and, not surprisingly, she answered, "Blair, I've been fucking him for months, ever since the night at our hottub party and I want you to join us." And there you have it - just like that, she was a hotwife, I was a cuckold and we were swinging. And it hasn't stopped...