"Wake up, sleepyhead," Shelby said as she shook Mary gently.
Mary, brought out of her slumber by Shelby, woke up with a start.
"You were out for a while. I took the liberty of attaching your chastity cage, but you still did not wake up." Shelby said, sitting by Mary lying on the couch.
"Hey, there, girl. Yes, I was tired, but I am feeling much better. How long was I out?" Mary said, sitting up and discovering that her pussy was locked up and still basically naked.
"Two hours, but you needed it. Sucking that much cock and fighting off orgasms has taken its toll on you. Let's get you woken up with a run on the treadmill; then we can prep for the big meeting." Shelby said, feeling sorry for Mary but not sad enough to forgo the exercise routine.
"Ok, but can we at least cut the time down. I still need a break before the meeting." Mary said in a pathetic voice.
"Of course! Just give me a ½ hour, then we can prepare for the meeting." Shelby said. It sounded generous, but in reality, it was cruel, as the treadmill was an intense workout for Mary's muscles and pussy.
"Thanks, I will need all my energy for the meeting," Mary said as Shelby went into the closet and pulled out the treadmill.
"Think of it as strength training; you need to build up your endurance," Shelby said as she directed Mary into the workout machine.
Shelby attached a cord from the machine to Mary's Chastity cage to provide enough voltage, then started the treadmill and set it to begin at a slow pace.
Mary began to run as the treadmill picked up speed at a steady pace of a couple of miles per hour. Shelby loved the look of Mary running with her thigh-high stockings, big bouncing tit's, and gold chain. It wasn't long before Mary started to sweat.
"Thank god for the shelf bra!" Mary thought as her massive DD's moved up and down, matching the pace of her footfalls. It would have been unbearable if her tits swung freely. The chain was already pulling on her clit and nipples with a vengeance. Then Mary's pussy lit up with vibration and voltage as she climbed toward her first workout orgasm.
"I have to finish the PowerPoint for your demo, so I need you to press this button on the panel when your orgasm becomes imminent," Shelby said, pointing to the red button in the treadmill's panel.
"Oh god...ok... it's getting there already!" Mary said as she reached out to press the button.
"Yeow!" Mary screeched as her pussy, clit, and nipples lit up with electricity.
Painful but effective, the shock killed her impending climax, only to start building again.
Shelby sat back and watched with satisfaction as Mary ran herself ragged. Her huge tit's bounced enticingly and her clit, now fully erect, stuck out lewdly as pussy juice ran down her thighs.
In a haze of lust, Mary ran faster and faster to keep up with Shelby's exercise program on the treadmill.
Sweat poured down Mary's face and chest as she ran herself to climax and back, again and again.
Every few minutes, the cycle repeated:
RUN...CLIMAX...SHOCK
Mary's voice was a garbled collection of desperate comments:
"Oh...oooo...oh god not again....oowww!"
"Ummm...oooo....shitttt....yeow!"
"Please no..ooo...ooo....aww...fu....owww!"
"Oh shit... it's a big one...fucking Christ....yeow!"
"Ooo fuck...my poor pussy...holy hell...here it comes again...owwww!"
"My clit... can't...take...much more...and my tit's...oh shit...not again...YEOW!"
Mary's pathetic moans made Shelby happy as Mary kept begging for relief.
Mary kept running and kept being denied her orgasm, but she did not stop or hesitate to push the button to shock her poor lady parts again and again. In the end, she fought off fifteen orgasms.
Moaning loudly, Mary looked over to Shelby with a pleading expression. Shelby finally finished the PowerPoint and then got up and switched off the treadmill right as Mary climbed again to orgasm.
"Holy shit! Thank you! I Don't know how much more of that I could take. My clit and nipples are killing me." Mary said as she removed the plug from her cage. Her nipples were erect and bright red from being pulled and abused from the gold chain, and her poor clit was also engorged and red. Mary was soaked with sweat, and her lace stockings were coated with pussy juice that had run out of her puffy red pussy, which had been shocked over a half-hour of relentless teasing. She looked haggard, and the addiction to orgasm denial was getting imprinted into her psyche, whether she knew it or not.
"You did great, Mary; sorry about not cutting you off sooner. I got caught up in this PowerPoint. At least it's done." Shelby said, but in reality, she listened to every whimper from Mary as she ran herself ragged and recorded it for Kelly's pleasure.
"It's ok, but I need to take a shower and get ready," Mary said, walking to the bathroom.
"Hold on a second, Mary, let me remove the cage. You need all your faculties for the meeting." Shelby said as Mary sat upon her desk and spread her legs, happy to get rid of the claw gripping her pussy as it distracted her too much.
Shelby also removed the chain to Mary's relief.
Mary went to shower and came out of the bathroom looking like a Director of software. She wore a long grey skirt and her business jacket, which fully covered her breasts. She had her hair pulled back into a bun. She even wore a pair of glasses to finish off her professional look. Mary also had to wear a pair of granny panties to hold the labia rings in place, so they did not jingle during the demo.
"Wow, Mary! Very professional! I barely recognize you!" Shelby said, looking her up and down.
"Thanks, I need to be at my best for this demo. Is everything set for the technical demonstration?" Mary said in her manager's voice.