Jade was slowly increasing speed of her hand, not enough to be trying to hasten his orgasm, David thought, but more as a deliberate preparation for a great release in a slightly longer time. His moans were louder as her finger entered his ass, circled a bit then pulled right out and ran around the rim before sliding back in. Eventually she started slipping further in until one time she brushed his prostate. David gasped with the sensation and felt his balls tense, suddenly ready to shoot as a result of this new sensation.

In the back of his mind he heard a rhythmic squeak from the next cubicle and...