All characters involved in sexual situations in this story are 18 years of age or older.
Piper snuck into the dimly lit Experimental Quantum Physics Laboratory and, after checking to make sure no one was around, cautiously lifted an instrument from the far counter.
"Digital probe?" she thought, as she tried to read the label in the dimness. "Who the hell are they probing with this thing?"
A flash of light startled her and she dropped the fragile instrument, wincing as it smashed on the hard floor.
Peeking through the window behind her into the dark chamber where the flash had come from, Piper was surprised to see an old wooden wagon in the room. There was a dark shape bundled on the floor of the cart, and she took a step backward when she realized it was a man.
"Hey, security?" she whispered into the phone. "Yeah, it's me, Piper. I'm up in the fifth floor lab, some homeless guy has snuck in here."
Suddenly, the phone was snatched out of her hand and she saw the stranger towering over her. He was dressed in filthy, brown rags and his dark hair and beard were wild and unkempt.
"Security?" he said into the phone. "This is Professor Carl Gates. False alarm, the janitor didn't recognize me in the dark."
As he hung up the phone, Piper stared at him in disbelief -- he was Professor Gates! But no wonder she hadn't recognized him. When she'd seen him talking in his office with two women half an hour earlier, he'd been clean-shaven and wearing a shirt and tie.
She peered closer, knowing it had to be a fake beard but amazed at how real it looked. And then she stepped on a piece of glass and noticed the shattered instrument by her foot.
"I...umm...accidentally broke your probe," she said.
The professor picked it up. "It's a digital
strobe
, not a probe."
"Well, whatever it is, I just picked it up and -- "
"It doesn't matter," the professor said.
"It matters to me, and I'm going to pay -- "
"I don't care about the strobe!" the professor shouted, and slammed the broken device down on the counter.
Piper stepped back, startled by his violent outburst.
He turned to look at her, and she could see the despair in his eyes. "I'm sorry," he whispered, "I shouldn't have done that."
"It's okay," Piper said, slowly backing away. "I should be getting back to work anyways. I'll, uh, just lock the door on my way out."
The professor watched as she turned to leave, but as she walked away an idea flickered in his head, turning the shadows of despair into a glimmer of hope.
"Wait!" he cried. "You've got to help me."
Piper turned around and pointed a finger at her chest. "Me?"
He hurried toward her, and she backed away when he got too near.
He stopped and held up his hands to reassure her. He knew he must have looked and sounded like a madman, and the look in her eyes confirmed it. He took a deep breath, and said, "What I'm about to tell you is going to sound unbelievable, and you're going to think I'm crazy, but please let me finish before you say anything.
"I've invented a time machine, and I need you to come back in time with me to help rescue Professor Elizabeth Carr."
Piper rolled her eyes. "Ha ha, I get it...real funny. Who put you up to this, the guys down in security? Are they watching me now?" she said, looking for hidden cameras.
The professor narrowed his eyebrows in confusion. "Is who watching us?"
"I don't know, you tell me. You're the one dressed up as Doc Brown, with the wild hair and the time machine, getting ready to take me 'Back to the Future'."
"Who?"
"You know...Doc Brown...'Hello, McFly?'"
The professor stared at her, completely bewildered. "I have no idea what you're talking about, but I'm serious -- I have a time machine and I want you to come back in time with me."
Piper crossed her arms; fine, she'd play along with the practical joke. "Okay, when do we leave?"
The professor blinked, surprised at how easily she was convinced. "You believe me? You believe I can actually travel through time?"
"Sure," she said sarcastically. "Why? Is it dangerous? Are there dinosaurs?"
"No...I mean, yes, there were dinosaurs, but we won't be traveling back that far. And while actual time travel is very safe, I just can't guarantee that the...umm...times we travel to will be."
Piper smiled and nodded, impressed at how convincing he made it all sound. And the professor rambled on.
"My assistant, Deidre Hopkins, and Professor Elizabeth Carr accompanied me on the maiden journey. Deidre was...lost, and Professor Carr is stranded in the first century. I desperately need your help to rescue Betty; the dangers for both her and the time stream are incalculable if we don't bring her back to our time as soon as possible."
Piper pretended that she was hanging on to his every word. As soon as he stopped talking, she said, "Great! Where's the time machine? Let's go!"
The professor sighed in relief; for a second he'd thought she hadn't believed him. He led her back into the testing chamber and clambered onto the wooden cart. Kneeling, he glanced up at her and she could see the excitement in his eyes. And as he pulled the floor of the wooden cart back, a hidden, gold-plated console was revealed.
As Piper stared at the polished controls and flashing indicators in wonder, the professor exclaimed, "Behold, the time machine!"
She knew it was all a hoax, but she was amazed at how authentic the console looked. "So...this thing can take us back in time right now?"
"Yes...but there is one more thing I need your help with, and when I ask please don't be offended; I assure you it's
absolutely
necessary."
"Okay...what is it?"
"I know you're going to be offended when I ask. Please promise me you won't leave?"
"I promise -- I won't leave! What is it?"
The professor took a deep breath. "I need you to masturbate me first."
As Piper stormed out of the chamber and strode across the lab, the professor raced after her.
"Please, you promised, don't leave!" he said, as he chased after her. "It doesn't have to be me. I could get someone your own age if you prefer. But, of course, I'd need you to make them ejaculate with your mouth -- and there'd have to be more than one of them."
Piper spun around, her mouth wide open in shock and a disgusted look on her face. Before he could say another word, she plugged her ear buds back in, switched on her music, and gave him the finger as she stomped out of the lab.
He intercepted her in the hallway and pulled out one of her ear buds. "Please! I apologize...look, I really do need your help, and I was an idiot to ask you what I did. You don't have to do anything, except promise me you'll wait for me here. I'll be back very soon, and I desperately need you to come back in time with me."
"Oh, you bet," she answered sarcastically," I'll make sure not to go anywhere."
He ran off down the hallway and Piper, fighting back tears, was glad to see him go. She'd always thought Professor Gates was quiet, polite and even cute in a nerdy way. But now she felt like an idiot for not realizing he was just like all the other professors, who assumed that -- because she was only a janitor -- she was young, dumb and easily filled with cum.
A half hour later, Piper was waxing the floor at the far end of the wing when the professor returned, showered and shaved and accompanied by three drunken frat boys and a woman dressed like a hooker.
"Piper, I'm so relieved you're still here," he said. "Please wait until we've finished in my office, and then I promise I'll show you what I said I would."
One of the drunks leered at Piper. "I'll show you mine too, baby. You coming to the party, sugar tits?"
The professor grabbed him by his shirt and glared at him. "No, she won't be! And if you don't watch your mouth, neither will you."
The drunk went to slur an apology but was cut off by the professor, who steered the four of them into his office and closed the door.
Piper had finished and was coiling the power cord around the floor waxer, when she heard whooping and cheering from the office. She crept to the door, cracked it open an inch, and peeked in. Her jaw dropped when she saw the party going on inside.
The woman was completely naked and bent over the back of the couch, sucking off the drunken frat boy standing behind it. His two friends had their pants down and were kneeling on either side of her as she stroked their cocks. And the professor, who'd removed his pants and neatly hung them over his office chair, was behind her -- hammering his cock in and out of her pussy.
Piper ducked out of sight, but after a minute of listening to the moans and groans filling the office she couldn't resist sneaking another peek.
The woman was sprawled on her back on the couch now, trying to take care of all four cocks at once. The professor was between her legs, stroking his pole into her sloppy hole. Seconds later, he groaned that he was going to come.
Piper blinked in surprise as he quickly pulled out of the woman, slid a condom onto his cock and filled it with cum. As one of the drunks took his place between her legs, the professor carefully laid the full condom on his desk and came back with a beaker. He waited patiently, watching the frat boy fuck her hard until he groaned that he was also going to come.
The professor quickly kneeled beside him and held out the glass beaker. "Make sure you ejaculate into this."
The drunken student grunted as he stroked his cock and shot cum into the container. As he milked the last few drops from his shaft, he said, "Dude, you're not gonna drink that, are you?"
The professor went red with embarrassment. "Of course not!" he said, clearing his throat. "This is strictly for scientific purposes."
"Yeah, right!" Piper thought, as she ducked back behind the door. She listened as the other two frat boys took their turns fucking the worn-out woman, and blew their loads in the beaker.
Piper turned her head when she heard someone running away from the lab. She was looking to see who it was when the door opened behind her.
She turned around and was startled to see the professor standing right in front of her, completely naked. She swallowed nervously as her eyes traveled down his toned chest and abs to his thick, hanging cock.
She turned away in embarrassment. "Damn," she thought, "aren't professors supposed to be skinny...and not so fucking hung?"
Piper, who had just turned twenty, knew Professor Gates was old -- probably in his mid-thirties -- but she could see why all his female students had crushes on him.
