Unplanned Accidental Upskirt

I've been paying my neighbor's son to cut my grass for the past 3 years. Yesterday was the first time my lawn needed it this year. It was a beautiful day here, so I was wearing a comfortable, light sundress. I was sitting in my recliner reading, and I must have dozed off to the drone of the lawnmower. When I woke up, he was quietly standing in front of my chair. Apparently, my dress had ridden up and my legs relaxed open while I slept, so I'm sure he got a great look at my panties. I have no idea if he had just walked in, or was looking at me for a while, but as soon as I realized I was exposed, I quickly stood up and smoothed down my dress. I thanked him as I paid him and sent him on his way, and neither one of us said anything about the incident.

I admit that when I'm feeling naughty, I'll occasionally enjoy giving accidental peeks up my dress to random strangers, but this is the first time it was not only completely unplanned, but also happened with someone I know. Now I have mixed feelings about it. Part of me is still embarrassed, but another part is rather turned on, and I can't help wondering what he would have done if I hadn't woken up.