Prove it!

"Prove it!" Elizabeth told you.  You looked at her dumbly.  

"Show me what you've got 'Big Boy'. Let me see if you're worth a better grade." It took another moment for you to realize what she was saying. You hesitated a moment. After looking around to make sure the door is closed, you undid your zipper. After a couple minutes of fumbling with your briefs, you pulled out your manhood for her to see. Her eyebrows rose momentarily. You weren't fully erect, but you were aroused enough she can get an idea of the size of your penis. When fully erect, your cock was seven inches long and maybe a little over two in diameter...bigger than average but not impressively large.

"HMMM," Professor Meredith murmured thoughtfully. She rested your shaft in the palm of her hand as if trying to gauge its final length and girth. You could tell that more blood was rushing to your loins.?

"Not as big as I'd hope," she observed, "Still, size isn't as important as what is done with what you have. Let's see what you can do." Sliding onto the desk, Elizabeth leaned back and spread her legs. Obligingly, her skirt slid up to reveal a tight hairless slit. Your cock responded by becoming rock hard.

You climbed up on the desk after her. You were disappointed when she grabbed your head and guided it to her waiting womanhood. You wrapped your arms around her thighs. Your tongue gently probed those soft folds. It took a couple minutes before you loosened her up so you could insert more than the very tip or your tongue between those folds. Gently she guided your head upward. You explored the nub at the end. It immediately started to firm up from your gentle massage. You tasted her juices as they started to flow. Professor Meredith moaned as her state of arousal builds. The thought that her tight pussy would soon be ready for your cock made you hornier.

Suddenly, Elizabeth closed her legs around your head. With a quick twist, she reversed positions. A second twist, this time with her legs open and she was straddling you facing your feet. Her spread knees pulled open her pussy lips. They were glistening with love juices. Your cock started throbbing as a little bit droped onto your waiting tongue. Anticipation grew as she slid forward. You were sure that she was about to mount your raging hard-on. Without warning, she sat back and planted her exposed womanhood squarely on your face.

You found it hard to breathe with her pussy pressed against your face. Instinct took over. Your tongue started to explore her clit. You gasped as Elizabeth?s fingers lightly stroked the underside of your cock. You moaned as her teasing touch raised your level of excitement. Your tongue flicked her clit even faster. She moaned and cupped your ball sack. Your tongue moved faster and faster as you felt an orgasm building inside of you.