She got blacked for the first time when she was 35 years old. For a few years before that we had been doing a few couples things from time to time. We had leaned more toward MFM, but everything was with other whites.
I first brought up the idea of her with black men, but it turns out that for years she had had a fantasy about sex with a black guy, so there is no way to discover who came up with it first.
After that we talked about it often, usually during pillow talk, but the sexual tension was building and we both knew that it was going to happen, and soon. I know full well that my wife is not very aggressive, so I encouraged her by reassuring her that I wanted it as much as she did and it most certainly would NOT cause harm to our marriage. That seemed to speed things up a bit and within a month she had gotten her very first Big Black Cock. We’ve been doing this for about 3 years, but it’s so much fun and is so sexually stimulating for us that I don’t think we will be stopping any time soon.
Hope that answers your questions and sheds some light on how we got started.