A little pleasure

As Emma tries to continue working, naked from the waist down but for her stockings, her hands distractedly slides between her legs, her fingers lightly playing across her pussy lips and clit.

A single moan escapes her lips and in the complete silence of the library it's enough to snap her back to attention. "What am I doing?" She suddenly asks herself, looking around for her skirt once more, but finding herself unable to remove her hand from her exposed pussy.