She jacked off Big Sam with her fist. He came up on his toes, grunting happily. Those micro-circuits, servos and memory units, were so sensitive that the robot actually felt pleasure sensations in his cock. The result was that she, too, grew more excited as she worked the penis and made him experience pleasure.
She bent down, took his balls in her hand and sucked the end of his cock. She felt a click and he gasped and began to bunt his rod into her mouth. His cock tasted of meat, just like it was supposed to.
"Ahhh, ooooo, ohhhh, good!" he cried.
It was good for her too. She was just about out of her mind with desire, fooling with that big cock.
"Let's drop your load," she said, blushing and thrilling with the reality of the robot sex.
She pulled him to a desk, holding on to his cock and he followed docilely. She felt her heart speed up and her cunt burn. It was the first real test with her virgin robot. This time she meant to go all the way.
She stripped him and stood him in front of the desk, cock jutting up, hard and ready, gleaming with preseminal fluid. His body was fantastic, with ridges of muscle, the soft plastiskin, the handsome face and the ripple of his parts.
Trembling, she slipped out of her one-piece suit and mounted the edge of the desk in front of him. Her breathing was fast and light. Her cunt had filled with syrup. Her nipples stretched taut. Her belly ached. Yet she hesitated a moment. This was the world's first robot fuck. The clock said 10:35 a.m.
She slid her hands around his naked buttocks as she gathered him in to her belly. His buttocks felt warm and solid, good in her hands. She felt inside of his crack. His sphincter was his orgasm button. When a female wanted a robot to release his flood, light pressure on the sphicter shot off the spurts.
In her nervousness, her fingers pressed the sphincter.
"Hah," went Big Sam. "Hah!"
"Oh, nuts!" she said, exasperated.
His eyes got big. His face went pink.
"Ahhhhh, Gloreeeee," he sang bunting in the air with his loins. He began to spurt just like a man with spasmodic loops of grey-white jism, grunting his pleasure as the circuits overloaded and spilled. The jism splattered on her naked belly and ran warmly down into her dark pubic hairs, making her shiver. It thrilled her to see the cock jerk and squeeze off those looping liquid darts so realistically.
She let him grunt off his pleasure in the orgasmic cycle and then philosophically reset the balls to fill again. His magazine had ten loads to activate without refilling. Premature ejaculation was no problem. He was instantly ready to go again, still hard. If she'd pressed another button, his cock would've softened and gone into a fifteen minute "wait" routine.
She got a towel and cleaned up the starchy smelling jism. The spent male juice felt sticky on her skin. Just like the real stuff.
She pulled him to her belly again.
"Ready?" she asked needlessly.
"I love this," he said.
She fitted the stiff cock-head into her cunt. She didn't have to do anything else. Once the sensors felt the cock-head bury inside a female organ, the robot began to fuck, as a real male would do. "Ohmigod!" she screamed in ecstasy.
It thrilled her out of her skull, and was almost painful. Gasping, she reached down to reduce the size of that brutally plunging cock. She'd forgotten and left him at eight inches.
"Ahhh."
His prick sank back to six inches, which was comfortable for her. She wouldn't leave it at that. She wanted to start out the action with the normal-sized cock and then as she got hotter she could expand it to match her expanded vagina.
The robot hugged her at the hips and fucked into her with long, luscious cock strokes, crazing her with sex delight. It felt sooo good!
"Oh, I'm fuuuuucked," she moaned happily.
At that moment the lab door opened and her boss, the Lab Director, Nelson Harper, came in. Rocking in Big Sam's fuck, she could only cling to the robot and stare at him, her face a mixture of embarrassment and delight.
Nelson was an older man, about fifty. It was always strange to see that face when her robot wore a younger version of the same face. His eyes blinked as he took in the hot scene before him, but he seemed determined to interrupt.
"You know the rules, Nancy," he said sternly.
He walked over to the robot and shut the power off. She gave a great sigh and slid off the tension of the plunging prick as Big Sam went still and lifeless. She slid off his still-hard prick.
"Wha… what rules, Nelson?" She grabbed for her suit, trying to hide her nudity.
"No one in the lab is ever allowed to be alone with a robot, in case the machine circuits scramble or short. You could be seriously injured, even killed."
"But Nel… Nelson." She was still hyped up by the sweet sex action. She saw it would reveal too much to try to dress in front of her boss, so she just held her suit over her nudity. Sam's big cock carried the gloss of her sex juices which embarrassed her, and she hoped Nelson didn't notice that.
"No exceptions," he said, making his lips thin.
"Now, how can I give Big Sam the final test with my staff hanging around, staring?"
"Don't need the staff. Just one person. I'd be the best bet," he said.
"You want to play dirty old man," she laughed.
There was a glint of humor in his eyes.
"Maybe. This work is hard enough not to enjoy the sidebars."
"So turn on the robot. If you have to voyeur – well, it's scientific, I guess."
"Uh, the point of this robot is that his penis detaches," he said.
"Of course it detaches, Nelson. If we left it on for married couples, the guy would never buy it. Your average guy doesn't want a big, virile male with a better cock than his around his wife all day."
"We designed it, furthermore, so that your average husband could wear the robot cock and enhance his own pleasure, as well as his wife's," said Nelson.
"That we did," she agreed. She felt a thrill in her stomach. She knew now what was coming. Nelson had been hot for her ever since she'd become this Project Engineer. She'd been so immersed in her work, she hadn't realized how much her boss wanted to plug her, with or without the robot dildo, and the final test was his brilliant chance.
"Before you try it with the robot, I think we'd better test the penis alone," he said. His face was slightly red, his eyes dilated as he stared at the smooth, silkin limbs of the girl.
Her eyes met his, showing some shock and some humor.
"Harps," she said, "You've got a perfectly good wife and, for all I know, a girl friend on the side, so why are you working on me?"
"It's not you," he said doggedly. "It's the President and the Board. They want a full report on the machine and its parts. They want it quick. Today's the deadline. I'm the Lab Director. When I report, I need to know exactly how well everything works."
She sighed. She was a little annoyed, a little shocked and a little amused. She was going to have to open her legs for her boss, wearing Big Sam's prick. She let her wet-look suit slide from her body, revealing her smooth-skinned nudity to him.
"You'll have to undress," she said. "It's better if you have an erection."
"I have the erection, and I know how to undress," he said, suddenly affable. His eyes shone as they danced over the luscious curves of the young woman's body. It took him seconds to slip out of his clothes. His prick was about normal and very hard. Embarrassed but dogged, he slipped the expanded robot prick over his own hard-on and fastened it. All of a sudden he was extroardinarily well-hung and they both laughed.
There was a moment of embarrassment. The two of them had worked together for two years, affably as person to person, but there'd been nothing intimate, except in Nelson's fantasies. He'd never really approached her if only for the reason that intimacy, even if she accepted, might corrupt a brilliant working team. Hers were the concepts, his contributions were ideas on how to carry them out.