Rust clamped each of Kate’s nipples. Kate hardly reacted. She must be used to it.
The clamps were connected to an interlocking chain. The chain dangled in a ‘U’ all the way down to her belly button.
Rust’s cock was very hard. He stroked it a few times.
“Suck me,” he breathed.
Kate got on her knees like an obedient lover. Alyssa had always found fellatio demeaning. She had a mother who didn’t want have anything to do with a man after her father left them when she was five. She only very occasionally succumbed to it, but she didn’t care for it in general.
“Don’t ever get down on your knees for any man, Lyssie,” her mother had always told her.
And here was Kate, down on her knees. Opening her mouth. Expediently. Obediently. Lovingly. Giving pleasure.
With a twist.
Rust seized the chain in between her nipples and lifted it. He placed it upon his rigid cock. And then he inserted his cock into Kate’s open mouth.
His erection strained the chain, pulling it taut – and with that, pulling up the clamps on Kate’s nipples. Kate’s nipples were stretched and her entire mounds lifted with it.
Alyssa held her breath.
Kate took Rust’s cock into her mouth and sucked it lovingly. There was dual pressure on the lovers. Rust must surely feel the downward strain of the chain on his cock as it threatened to pull his erection towards the floor. The strain on Kate’s nipples and breasts was obvious.
And yet the fellatio continued. Unabated. Intensified. Alyssa could see Kate’s cheeks bulging as she worked Rust’s cock. Rust’s breathing quickened. The chain bobbed, tugging Kate’s nipples with it. Her nipples were becoming red.
Alyssa felt a smoldering curl between her legs. She crossed them quickly. From the spooling of her own pussy creams, she knew that she was aroused.
Would Dan pick that up on the monitor?
Kate licked Rust’s cock, and then put it deep into her mouth to suck it. The cock was becoming more engorged than before, and therefore more erect. Kate mimicked a fucking movement with her mouth. With each pull of her cheeks, her nipples were tugged upward.
Rust was breathing heavily now. As was Alyssa. Her legs were locked tightly around one another, and she could feel the compression of her clit in this manner. She was going to make herself cum if she wasn’t careful.
The fellatio went on for several minutes. There were sucking noises amid the relative silence of the room. Even the hum of the air-conditioner was not apparent.
Then Rust pulled his cock out of Kate’s mouth. The chain slipped away and fell down in a ‘U’ again.
Kate licked her lips beguilingly.
“Come here,” Rust said.
He pulled her gently upwards onto the bed. She was tied up and restricted. He arranged her so that she was on her knees and her head was on a pillow. Her rotund belly nestled comfortably on two more pillows he stuffed underneath.
He penetrated her swiftly. She cried out. He began to buck his hips. Fast. The bedsprings creaked and groaned with their dissipating weight. Alyssa had a perfect angle of his cock thrusting in and out of Kate’s pussy. The ache between her own legs was becoming worse and worse.
The fucking grew more intense, and after a while, Kate screamed her climax into the air. But Rust still relentlessly pounded her, until she was sobbing mess, clutching the sheets and pillow and begging for mercy.
“Oh, please . . . stop, stop, stop . . . let me catch my breath and rest.”
Rust pulled out, panting. His cock was still erect and covered with pussy juices.
“Ohhh,” Kate moaned as she collapsed into her pillows. Her dark hair was damp upon her forehead.
“You all right, sweetheart?” Rust stroked her hair.
“I’m all right.” Her breathing evened out.
Then she smiled as she turned to Alyssa, her hair spread across her pillow.
Kate purred, “Do you want to join us?”
14
Alyssa was stunned.
Kate repeated, “Would you like to join us?”
“I heard you,” Alyssa said. Her heart was beating very rapidly all of a sudden.
Join them?
More than anything!
But there was protocol to be followed. She was being watched.
But this is an experiment. It is my job to oversee a bunch of scientists to run experiments on this couple.
Joining a shifter and his human girlfriend in a three-way was also an experiment.
She wondered what the Director would say. I put you in charge, Foley. Just make sure none of them are permanently damaged.
But it was not ethical by any standard that she should participate!
Nevertheless, she was in charge. The terms were clear. Do what you have to do. Study them in every way – their eating habits, their transformation, the way they mated. The terms of observer participation were never prohibited. By the very act of observing the shifters, the observers were already participating.