A very long time ago (twenty years?) I had an opportunity and blew it!
My girlfriend (at the time) and I were in a used book store, in a rural area. The lady running the store was middle-aged (mid-forties) and not very attractive. She was wearing jeans, nylons and house slippers. 😀
I asked about a certain author, and she took me back to a small room away from everything else. She knelt down on the floor to get to the bottom shelf of a bookrack in a crowded alcove lined with shelves. As she leaned forward on her knees her house slippers (fuzzy mules) parted to reveal the prettiest pair of soles I had seen in some whlie.
I wanted desperatley to reach forward and stroke the bottoms of her feet. If I'd been alone, I'm sure I would have, but I was with my girlfriend and didn't want a scene, so I controlled myslef. I still regret that decision!