Of the thousands of upskirts I have had the pleasure of seeing, one of my favourites happened some years ago, while I was in college.
One night at the public library down town (always a good place for schoolgirl uppies!) I noticed a cute girl, who I would estimate at about 18 or so wearing an orange skirt coming to just above her knees. She went to the card catalogue and began looking through the files and writing down the catalogue numbers of the books she was seeking. (This tells you how long ago, before everything was computerised!)
Standing next to her, but not too close, I pretended to go through the files in the adjacent section. I noticed most or her selections were in the same area, and keeping them in mind I went to that location before her and removed several of the books on the lower shelf. My plan was that she would squat down to retrieve them, or put them back.
Then I then went to the next aisle and waited for her to show up. Within a few minutes she was there, and almost immediately she squatted down to look for some books on the bottom shelf and then go through some of the books I had placed on the floor. I kneeled and lowered my head to the bottom shelf, just inches from her knees. Her legs were spread VERY wide, as she was quite low down to the ground, and I swear, she had on TRANSPARENT panties! Her blond pubic hair and the pink pussy-lips were plainly visible. What a sight on such a beautiful girl! I could not resist rubbing my cock through my pants, and came in a few seconds. I hurried out, before the wet spot came through my jeans.
This little sweetheart will always have a fond place in my memories.