Very often when you are going up the escalator, there is a good chance of getting a superb view...
There is once I was about 4 or 5 steps behind a very chio girl wearing those really "mini skirt" on a escalator, there is no other people between us, as the escalator was long, it took quite a while to get to the top. halfway through, she bent down to adjust her boots, and her pussy peeked out from under the skirt.. Gosh, she wasn't wearing a panty at the time, the clean shaven pussy just peaked out from below.
As we were heading towards the same building, I was behind her for quite a while, thinking if I should just up her later if we were in the same lift. most undortunately, there were other people at the lift landing.. all hopes dashed...