Use it of course

I swallowed, the burning in my nethers was now an inferno and one of my hands had idly reached down to rub between my moist folds as I read the next few pages about Lilly’s determination to reveal the incident to the head master, and her subsequent failure to do so. It seemed that the device offered untold pleasure and Charity had begun using it liberally whenever she could find free time and knew she would be absolutely alone.

“She only does it when I’m gone…” murmured to myself, the words coming out in a gentle moan. My eyes widened. What was I doing? How much time had passed? Was that a noise in the hall?