She called me at lunch and said she found something in the garage and do I know what she's referring to. I said I did.
After the kids went to sleep, we had the talk. Told her I was still a man, not sure why I had the urge to do so, but that it felt like a combination of release and feeling sensual.
While she said she's not sure she understands, she didn't think I was strange or deviant or anything, just sad that I wasn't open about it before. I explained how I felt afraid about exposing myself that way. In the end she seemed OK. Doesn't want me dressing around the kids, or when their in the house, which I'm good with. I'm sure more questions will pop up as she wraps her head around it, but the whole thing turned out a lot better than I ever expected.