She sat down on the third-to-last step with her feet resting on step below. She pulled her gown up so the was tucked between her thighs and stomach. Her hand reached down and began to rub her cunt. As she became more and more excited her legs spread open so that anyone coming in the door can her rubbing her own cunt. Soon enough the doorbell rang and Meredith called out, "Come in."
.....
Q. Did you hear about the constipated mathematician
A. He worked it out with a pencil.