When I was 19 and in college, I met a 35 yo literature professor (he taught at the college I was attending, but he was not one of my profs). I did not fall in love with him, but I really liked to hang out with him – he was funny, good looking, and really good in bed (until that point my experience had been limited to a couple of clumsy and inexperienced boys in high school). He had four close friends – all mid-30s, good looking, working good jobs, living in nice houses. As the “kid” and penniless student in the group, they take really good care of me. They treated me as a peer… but I clearly wasn’t. They were just really, really nice to me.
I kept feeling that there was “something” going on. They kept dropping sexual innuendos, but I chalked it off to my being young and inexperienced. Then, one night, one of them inadvertently made a reference to all the fun they had had the prior night. Well… the prior night I did not know that they were getting together. I was hurt and felt excluded, and I let them know. By my pushing and prodding, finally the full story comes out: they are swingers. They get together regularly to have sex. And they had kept me out of it because they did not want to take advantage of me. They wanted to… protect me, from themselves. I told them clearly that, albeit young, I was an adult and my boyfriend could attest that I was not virgin or prude, so I wanted in.