My bf is also married with a wife and kids, all are are grown. He teaches middle school at a Lutheran church. I think he's had furtive encounters his entire marriage, where I wasn't with my first man until age 54, and he followed a few years later.
What I love about him, among many other things, is the randy contrast between his public church mouse self and the man he becomes with me.
I've made out with him in the car on a dark street in the city and my very densely populated neighborhood one town north.
I've been naked in the back yard at his home in a small farm town two hours away, laying in a hammock with only the sun and body heat on a perfect day to keep us warm... he has gay neighbors next door but believes they can't see over his fence. I yearn again for the release I felt with him that day, totally out on the open. It was heavenly...
We've made love in the back of his van in the parking lot of a county park. It was MLK Day, cold and snowy and the windows were fogged up. There weren't many cars in the lot. He had just gotten inside me when we heard people walking by the rear window. At least he has a very nice looking ass.
Not quite naked but we went to see the Nutcracker at the opera house this Christmas. Midway through the performance when the toy soldier dancers were leaping in very tight tights all with large bulges, he draped his scarf over his lap like a blanket and his own soldier emerged from his trousers, leaping into my hand. I stroked him gently for awhile, but I didn't want him to leave looking incontinent... put him to bed before Clara so we could have our own pas de deux when we got back to his parents' vacant house. We flipped the most vigorously ever that evening in the six years we've known each other.