Bent over the toilet seat in that purple dress, the silver-haired woman works her fingers in tight circles. Her spine curves as she pushes into it, thighs trembling with every stroke. The dress rides up just enough to show the curve of her ass as she grinds against her own hand. Her breath comes in sharp gasps, fingers moving faster now, until her body tenses and she freezes for a second before collapsing against the seat.
