The urge to sneak a peek under a schoolgirl's skirt as she walks up the stairs—surely everyone has felt this impulse at least once. Staircases are part of everyday life, but when a female student ascends them, the plump, fleshy look of her thighs and the swaying of her skirt naturally draw your eyes beneath. Yet society demands we suppress such desires. Still, fully acknowledging that allure is profoundly important. By gazing intently at what you desire, you might gain an entirely new perspective. In that sense, schoolgirls on the stairs are truly worth watching.