Put on a show.

"put on a show for me."

"Uh, what kind of show?"

"Lose the top, and play with yourself while telling me about the other dares you've done so far."

Amy blushed as she pulled off her top, leaving her just in her crotchless fishnet body stocking. Her hard nipples poked out from between the netting, was she already turned on? What was wrong with her, she wondered, that being exposed and humiliated made her so horny?

She began to tell the story of how she had been dared to go down on a stranger the day before, and what came of it, and while she did, she made small, gentle circles over her clit with her fingers. Her other hand drifted up to pinch and tweak her nipples. As the story continued she began to rub faster and harder and soon she felt a desire to be more open, so she placed one foot up on Dr. Madisen's desk, spreading her legs wide and opening up her pussy so she could plunge first one and then two fingers inside.

Her eyes had shut involuntarily and as she opened them she noticed that Dr. Madisen had unbuttoned her slacks in order to stick a hand down her own panties. The thought that she and her professor were masturbating together made Amy even hornier, she could cum right now if she wanted to, but instead she held back, tried to delay it.

When she finally got to the part of the story when she had her own orgasm, she let go and had one in real time as well. Involuntary grunts and squeals escaping her lips as her back arched and her pussy spasmed with ecstasy.

"Well," Dr. Madisen said, breathless from coming herself, "that was an even better show than I expected. And a better story. I think you'd better come by regularly to tell me about these dares of yours."

"Anytime you dare me to, Professor. Unless," Amy shot Dr. Madisen a meaningful look, "you decide you want to dare me to do something else with you instead."

"Ahem, yes, yes, that might happen. But for now I think you should get out of her before other students come by for my office hours."

"Of course, but, uh, didn't you say you were going to lend me something to wear?"