I have posted before about my nearest neighbour making any excuse to call around to see me naked, (she walks in, never knocks).
Well, on one occasion, Margaret, who lives a few doors away, caught me naked at the back door. This was a weird but satisfying experience.
I was standing, naked, at the back door, on a beautiful warm day. I had started to fill the bath and realised there wasn't enough hot water. So I adjusted the timer and went downstairs to wait. I didn't put on any clothes because I often go naked at home.
While waiting I stood at the open back door and sipped a cup of tea.
I almost dropped the cup when Margaret strolled round to the back door! Nobody ever uses this door, that's what made me jump, being seen naked is no problem!
What followed was classic: I muttered something about waiting for the hot water (it seemed logical at the time!) I didn't dive to find some cover because I was enjoying the situation. Margaret had called around with some information, and, good for her, she carried on as if everything was normal! She looked at my cock a number of times, her gaze would drift lower and each time my cock thickened and grew steadily erect.
The more it grew the more often she looked.
This conversation lasted for at least ten minutes but the erection lasted a while longer as I replayed the experience in my mind. When she had gone I jacked off very quickly and came hard with her gaze still in my thoughts.