The paddle.

The supervisor nods, as if knowing this would be your reaction all along. With a wintry smile, she hefts the wooden paddle and walks back around the desk. She stands beside Nurse Watkins, who is still waiting, bent over the desk, her round ass exposed, her head meekly down.

"Nurse Watkins," she supervisor says, and though it's quiet the blonde jumps as though at a shout. "Grab hold of the far end of the desk. You are not to move or cry out until your punishment is complete. Is that clear?" She is facing you, her eyes watching yours, as she speaks.

"Y..yes ma'am," the nurse says, in a small, timid voice.

"Our volunteer here will help administer your punishment," the supervisor continues, and again her tone leave no room for disobedience. "He will stroke himself in time with the blows I deliver. The faster he goes, the harder I will hit. When he comes, you will crawl across the floor to him and lick his cock clean, thank him politely, and take his sample to the laboratory."

"Yes...ma'am," the blonde replies, nearly a whisper.

"Very good. Let's begin."

The supervisor raises the paddle, which catches the light, gleaming beautifully before it's brought down in a swift arc on Nurse Watkin's rump, causing the blonde to jump, hiking her ass up into the air and spreading her stockinged legs wider, exposing her sex fully to you. You stroke yourself once, and the paddle comes up, then down again, and once more you stroke your shaft.

The supervisor watches you, her cheeks brightly flushed, as she brings down the paddle again and again, each blow making the blonde nurse gasp and twitch. That wonderful ass reddens beautifully, and you start to stroke yourself faster, harder, while the supervisor paddles the nurse in time with your strokes.

Faster, harder...the loud slaps of the paddle on sensitive flesh echo through the lush office, and you can see the supervisor starting to sweat, her breasts heaving against the cotton of her business suit, persperiation breaking out on her forehead, her eyes fixed on you.

For her part, the blonde takes her punishment well. She squirms under the blows, but her cunt grows so wet that her excitement starts to run down her garter-and-stocking-clad thighs, dripping onto the carpet, and soon she is rocking her body back and forth, grining her huge tits against the desk with each blow, her head back, biting her lips to stifle cries of pleasure.

As you get closer and closer to orgasm, the paddle comes down still more swiftly and with greater ****, and the supervisor's nostrils flare, her dark eyes burning with passion. Finally, the nurse throws her head back, screaming in pleasure, her now-reddened ass and dripping cunt raises up as high as her position allows, and the sight is too much for your inflamed passion. You cum, and cum, and cum into the jar, going nearly lightheaded with the sensation.

As your orgasm subsides, you see the supervisor grab Nurse Watkins by the hair again and throw her to the floor facing you. Her heavy breasts swaying, her blonde hair in dissaray, Nuse Watkins crawls catlike towards you. She reaches you and lifts her head up, her pink tongue extending to clean every spare drop from your cock, then your hand.

Her work done, Nurse Watkins takes the jar and seals it, then stands. Head down, without bothering to fasten up her uniform, the blonde heads out of the office and back into the hallway.

The supervisor catches her breath and smooths down her business suit skirt. Wiping the perspiration from her brow and regaining her composure, she says, "Thank you, sir. You may collect your payment at the desk, and of course we will call you if our screening shows we have further need of your services." She heads back around the desk and sits down, all trace of that former passion fled from her demeanor. "I believe our business is conculded for the present. Good day."

Without a further word she starts up the computer on her desk and begins working. It seems you have been dismissed.

You find yourself back on the empty, silent street with a pocketful of money and an experience you'll never forget. All in all, a successful venture.