Sure

"Um, yeah ok." You reply, and immediately regret it.

There was a quick thrust, and a deep plunge into you vagina, as your girlfriend righted the pencil over a blank piece of paper. Then in one fluid cursive motion, she wrote her full name.

You never realized just how much a pencil wiggles and moves during the writing process, that is until you had a giant dildo raging around in your snatch while stuck to one. "H-h-h-how long is this paper?", you asked through clenched teeth.

"Two thousand words.", she replied with a devilish grin. "Just let me know when you're worn out and we can switch to your ass!"

"Oh god." Was all you said as she started on the first sentence, followed by some miscellaneous info and her thesis, and then the first paragraph of her essay.

By the end of her first body paragraph, your pussy was screaming for you to tap out, but you knew what she had planned if you did. So you closed your eyes, and rode out the scribbling until she finally eased the pencil back down to the desk.