If You Give A Mouse A Cookie...
It went on like that for about five days. Every time we'd get you so close to cumming and something would come up, some random emergency or distraught friend needing immediate attention. But at the same time when you returned the favor I always got to come. It seemed suspicious and I know it was frustrating, but you kept quiet about it because it fed your secret fetish. And then after the fifth time I looked up at you and asked you if I could deny you just because I wanted to.
Suddenly those last five days came into focus for you, and you realized that those emergencies might not have been emergencies at all. You understood that I had seen the sites you'd visited on your computer, and I liked what I saw. And finally, you realized that you might just have found your fantasy in a real live woman. Your sweet little innocent librarian was actually a ruthless, sexy cockteaser who wanted to control your little dick. What else could you do but say yes? And so with a smile I bent over and let you lick me to an orgasm, trembling in the throes of climax while you pumped at the air in frustration.
I made you promise not to come until I let you. It would just be a few days, I said.
Honest.