Stacey has had a few college boys over the years but nothing could beat our first foray into the lifestyle. We were still very much newlyweds in late-70s, just out our college and living in a small apartment complex. A high school boy started hanging around the pool and enjoyed talking with her. Over a few weeks he became a sort of friend though the age difference was pronounced. During that time he would flirt with her, innocently touching when talking, and started putting suntan lotion on her in my presence. He became more and more bold - exploring parts of her body with his hands in my full view. She loved it. Eventually he started hanging out in our apartment on weekends watching football and generally flirting with Stacey. One thing led to another - she knew I fantasized about her with another man, and I had even encouraged her to play around with this young man. I would occasionally see them kissing and touching in the kitchen while I watched tv in the den. In those days women didn't wear a bra very often so her tits were always in view. She would bend over in front of both of us and he would fixate on her tits. When he thought I wasn't looking he would feel her tits and run his hand up her sun dress. She loved kissing him and I'd see her rubbing his crotch and even I was surprised at how big he was. I would run errands and leave them alone. One night when laying in bed she told me she had sucked his cock that afternoon - which I had consented to weeks prior. She admitted to wanting to have sex with him. I agreed - I was so turned on - what else would I say. Anyway - this is how we started 40 years ago. She's enjoyed younger men ever since.