Walking upstairs
From wipipedia.org
Watching someone walking upstairs or up a ladder is a fetish that is a form of voyeurism.
If the person is wearing a miniskirt, there may be an opportunity for an upskirt glimpse. If the person is wearing leggings, a tight miniskirt or tight jeans, then the act of bending the leg necessary in walking upstairs emphasises the bottom. it increases the likelihood of seeing VPL or whale tail.
On some staircases, modesty panels have been added to stop upskirt views by people standing next to the stairs.
