"No, please, not again, I can't take it again," I begged.

My protests did nothing to stop the slow movement of your hand, tracing a line down my chest, to my stomach and eventually to the tip of my cock, still aching from the last teasing I had endured only an hour earlier. Both my wrists and ankles were held tightly in stocks, which prevented any movement at all, other than an occassional twisting and squirming.

You said nothing, just slowly slid you hand down the length of my cock. This time it was cool and slippery and my cock responded by twitching and throbbing, my heart was racing and my mind was trying to find the words to convince you to stop.

Your hand slid even more slowly, up and down, over and over again, bringing me to the brink of orgasm, before you would stop and hold it just a hair away, watching while I squirmed and suffered in unbearable agony.

Soon I was in tears, words streaming out of my mouth, which were barely comprehensible.

And then, as quickly as it started, it ended, leaving me a quivering mass, my cock straining and aching.

"It is all for your own good," you told me, "I am finding out so much about you."

Your smile was soft and sweet, almost making me forget the aching.

You left the room while I shook, so needy and desperate. I called for you, my voice growing hoarse and desperate.

I needed you to come back, to help me. Each second which passed, the agony grew.

I closed my eyes, and softly begged, "Please," over and over again.

When I opened my eyes, you were standing over me, smiling.

"Please what, David?" you asked, smiling.

"I need to cum," I pleaded.

"No, David," you explained, "you WANT to cum. Now you need to learn the difference."

Again your hand made its way down to my cock, as tears filled my eyes and I thrashed helplessly in my stocks. "Please, God, No!" I begged.

With just the softest of touches you made it strain and throb. Your other hand reached up and released the latch which held the stocks shut. Before releasing them completely, you gave me my instructions.

"OK, David, here is what you are going to do," you said as you released my hand from the stocks, closing it again to trap my other wrist.

You took my hand and placed it on my cock, guiding my fingers to wrap around it.

"Now," you laughed softly, registering the shock in my eyes, "I would like it if you didn't cum."

My body started to sweat as I found myself gently squeezing my swollen cock, moaning loudly.

"I don't understand?" I said, anxiously.

"You can do whatever you want, David," you said matter of factly, "but I'd prefer that you don't cum."

"What if I do?" I asked, "will you punish me?"

You shook your head. "No, no punishment."

"Disappointment?" I asked.

"No, David, there are no consequences. This is not a command, an order, or even a request. It is just a preference."

My mind spun, I was dazed, not sure of what to do.

You leaned down and whispered in my ear, your hand taking hold of mine and forcing it to rub my cock.

I gasped.

"If you cum, David, we'll stop," you said. And after a pause, you added, "But, I would prefer that you didn't."

"And if I don't cum?" I asked, apprehensively.

"Then, we don't stop."

Just from touching I could feel the orgasm building, it was so close.

I closed my eyes and stopped my hand. I raised it up, reaching for the stock.

You smiled, taking my hand, guiding it back into the stocks.

"Very good, David," you told me. "You learned a new word today."

I looked back at you, eyes wide as your hand began rubbing my tender tortured cock.

As you brought me right to the brink of orgasm, I hoped against hope that you'd show me some mercy and finish what I had given up.

Instead, the teasing grew worse, much slower and your smile grew wider.

"What Mistress," I asked, through my tears, "what did I learn?"

"Sacrifice, David," you said, proudly.