Kelly examined her watched impatiently against the clock hanging in her cubicle, noting with displeasure that the office clock was four minutes slow.
"Hey Kel..." Her boss, Robert, appeared at the opening of her cubicle, carrying a stack of papers, "can you get these on my desk by tomorrow?"
Kelly read the clock again with an inward grimace. It was almost time to go; class was in an hour.
"Robert, I'm kinda pressed this evening," she smiled, despite her agitation. "See, I have class tonight and..."
"Class?" her boss said surprised, stepping into her cubicle, "I didn't know you went to school Kelly, what are you studying?"
"Oh, uhm, I'm working on my advertising certificate," she lied, surprised at her quickness. Of course she wasn't studying advertising, but she could hardly tell her boss the truth about her educational pursuits.
"Well, then," he smiled, "I guess Jim can do it. I don't want to get in the way of your studies."
Then, turning on his way out, he looked thoughtful for a moment. "Kel, you know, we might have an opening in advertising, down the road, for a qualified person," he said with a wink.
It was seven minutes after five.
"Awesome!" Kelly smiled, pretending to care.
"Well, good luck at school tonight," he said on his way out.
Grabbing her things, Kelly raced out of the office to the elevator. She wouldn't have time to change, but she could just make it to class if she hurried.
In the parking garage, she dumped her stuff in the backseat, and got in, checking herself in the mirror. With the car in gear, she backed out, and pointed it at her destination.
With exactly, five minutes to spare, Kelly entered the classroom, and took a seat in the semi-circle of chairs, at the end by the window, next to a heavy-set, handsome gentleman who smiled at her as she sat down. She returned his smile. He was one of only two men present that evening, the rest of the class were women.
This was her third class, and she'd discovered that the ratio of men and women usually favored women.
"Good evening folks," Jetty Talmot spoke, entering the room, as the murmur died down.
"How's everyone tonight?" she asked pleasantly. Taking a seat on the edge of the big mahogany desk in front of the group, she sipped from a bottle of water. The room functioned as a regular college classroom during the day, but one evening a week it was used for masturbation class.
"Any questions from last week's class?" Jetty said towards the class, placing the bottle on the desk.
Jetty was an older woman, probably in her early fifties, by Kelly's guess. Her dark hair fell to her waist in tresses, and was contrasted by the deep-red, shouldered blouse, and grey skirt that outlined her classic, hourglass figure. Kelly thought she was beautiful.
The room was silent, waiting for her to continue.
"Great!" she said, standing. "Now, tonight class, we're going to talk about adding some excitement to your masturbatory sessions."
Moving to the blackboard, she picked up a chunk of chalk, and wrote the word "Nudity" on the board, underlining it.
"Nudity," she said, turning to the class. "Can someone please explain nudity?"
The class was silent for a moment before the man next to Kelly raised a hand.
"Isn't it the state of being undressed? Naked?"
"Exactly Jim," Jetty said. "Nudity is the state of being undressed, naked, no clothes on."
"So, class," she continued in a serious tone, "how can we use nudity as an added element of excitement when we masturbate? Any ideas?"
"Well..." a petite, blonde-haired woman said from the other end of the semi-circle, "you could be naked in a place where you aren't supposed to be..."
"True. Good, that's one way," Jetty answered.
"Jim," she smiled, nodding at the man next to Kelly, "could you come up here a moment?"
Rising, Jim strode to the desk, turned, and stood in front of the class.
"Now, last week, Jim here masturbated for the first time with us," a small applause went up, with congratulations from the semi-circle.
Jim flushed a little, and Kelly noticed him fidget.
"Jim, will you be my demonstrator?" Jetty said sweetly at him.
Jim nodded.
Coming around the desk, Jetty stood beside him facing the class.
"Would you please take off all of your clothes Jim...everything...socks too...and place them on the desk?"
"Yes Jetty," he said...then went about the business of getting naked.
Opening his shirt, he removed it and placed it on the desk, then pushed his shoes off, one at a time with his feet.
Unzipping his trousers, he pulled them to his knees and bent over, stepping out of them. Folding them neatly, he put them next to his shirt. Then he pulled his socks off, and dropped his boxers to his ankles and stepped out of them. Bending over again, away from the class, he laid everything in a neat pile on the desk, and faced the semi-circle again.
Kelly couldn't help noticing the neatly trimmed patch of pubic hair, just above his rather large penis, which had begun to thicken, as Jim stood naked in front of the group.
Apparently, that fact didn't escape Jetty either, as she bent to pick up his clothes, smiling at him. Jim blushed.
Crossing the room, she opened a metal cabinet in the corner and placed Jim's clothes carefully on a shelf inside, before closing it, and returning to her spot next to him in front of the semi-circle.
"How do you feel Jim?" Jetty asked, touching his shoulder lightly for reassurance.
"I, feel...kind of embarrassed." he said sheepishly.
"Yes, that's right...embarrassed. Anything else?"
Jim was silent for a moment, looking out at the group. Kelly saw his breathing increase as his cock continued to swell between his legs. She felt wet between hers.
Glancing through the group, she saw that she wasn't the only one affected. Several of the women appeared to be breathing a little faster. The petite blonde squirmed a bit in her seat, and adjusted her skirt. The other man sat silent, staring attentively at Jim.
Jim's chest was flushed pink as his cock reached full mast, pointing at the class. While it was large to begin with, when it was hard, it was huge, Kelley thought, probably twice the size of when it was flaccid. The head of it was swollen slightly purple. Jim's cock throbbed and moved lightly with his heartbeat. His balls hung low between his thighs.
"Well," Jim continued, "I feel...excited..." he finished, looking down at himself.
"Yes," Jetty, said, punctuating it happily. "You are excited. It's exciting to be the only one, totally nude, and hard in front of a group, isn't it?"
"Class, "she said towards the group, "Jim has just discovered an excellent way to add a measure of excitement to your masturbation...being naked in front of a group of clothed people is terribly exciting...just look at him."
As Jetty smiled at him, Jim's hand went to his cock, stroking slowly, moving over it, back and forth from the head to the base.
"Nice, Jim," she said encouragingly, touching his shoulder again, "stroke yourself...masturbate for everyone..."
Kelly felt her wetness soaking through her panties and the insides of her thighs as she stared at Jim, naked, stroking himself in front of everyone.
Taking stock around her again, she saw that a dark-haired woman, two seats over already had a hand in the front her jeans, and was rubbing herself, transfixed. The petite blonde on the end absently pulled at a nipple through her shirt.
Unable to help herself, Kelley opened the few button on the front of her work slacks, and reached in, fingering herself through her wet panties.
Jetty stood, smiling around the class.
"Jim," she said sweetly, describe for the class what you're doing please."
Jim's eyes were closed; his head was tilted back on his shoulders as he pleasured himself.
"I...I'm masturbating..." he said, struggling a bit.
"Well, yes...you are Jim, but is there another way to express it...is there another way to say it?" Jetty pressed, still sounding sweet.