Dick slip? Why do I want to go back?

I am a 36 year old woman and happily married. I live in an area of town that the homes are close to the street. If someone were to leave their home, they would have a small porch, then travel down 3 steps to a short sidewalk (maybe 10 feet long?) that meets the city sidewalk then a short strip of grass, followed by the curb and parked cars. It is a clean, quiet, tree-lined, charming residential neighborhood. About two weekends ago I was walking my little dog down random streets just enjoying the morning when I came upon a handsome older man (60’s?) that was sitting at the top of his steps in shorts and a t-shirt. We exchanged eye contact, a smile, and a hello as I walked by. The entire encounter was no more than a few seconds. A perfectly normal neighborly encounter except for the fact that his penis was viewable due to the gap between the shorts and his thigh. It’s not like it was hanging out, but it was easily observed by me, flaccid and resting there with a hint of scrotum behind it. Nothing seemed out of place other than his penis in view. He was calm, relaxed, and resting back with his straightened arms. I never felt threatened like he was weird or a creepy pervert. His legs weren't even spread apart very wide. I imagine that he was probably unaware of his exposure and would be embarrassed if he knew. I hope that I did not stare at it during those brief seconds, but I certainly have the image captured in my memory. Since it was a short distance between us, all of his cock was easily viewed because it was at the front of the fabric cavity created by his shorts. I could see an entire side profile of his downward pointing circumcised penis, the pinkish tip resting against his thigh, and the shaft curving toward his middle until it disappeared in the crevasse.
Three times now I've now found myself walking past the same location at a similar time of day as the original event, but I haven’t seen him…or his cock! Everything is wonderful in my marriage, yet I'm now getting the impulse to put a hint of make-up on in the morning before I venture out with the dog, something I've never done before. Today as I approached his home, a thought occurred to me that maybe I should wear outfits that are a bit revealing. Maybe a short skirt with nothing underneath. If I came upon him again, I could linger and strike up a conversation. OMG I wouldn't know how to even start that conversation! I could bend over to tend to my small dog and expose myself to him while doing so. It would be SO HOT to watch him become aroused in front of me, slowly forming an erection in front of me while he sits upon his porch on the city street. Or maybe a top with a plunging neckline and no bra... What the hell am I thinking? I'm married!!!

I know this is mild for a naughty confession, but I want to see that cock again…