Return of the Interns

Jason was given a few days to recover from any further experimentation, returning to a regular schedule of four cocks a day for his conditioning. He kept hoping the twins would return so they could stuff his needy asshole again, but was told that they were being used for other purposes. He was getting antsy, just having a single guy fuck him wasn't cutting it anymore. Sure, it fulfilled the compulsion he had for cum up his ass, but he needed more than just the need satisfied.

Then there was Mark. He'd been too busy to visit and Jason felt himself missing him. He didn't even care if he didn't get fucked by Mark, he just wanted to see him, to touch him, to kiss him. Feelings were stirring in Jason that he'd never felt before. Ones that weren't just pure lust, but something more.

Jason was sleeping when a familiar voice stirred him from his slumber.

"Jason, wake up."

Jason opened his eyes, his vision coming into focus, and he saw Mark standing beside his bed. His heart skipped a beat as he saw him. He also heard the sound of moaning and glanced towards the area the sound was coming from, seeing Peter and Vincent, the two interns from a few days prior. Peter was laying on top of Vincent, both were completely nude and both were furiously thrusting their cocks together in an animalistic need to cum. Not only that, but they were engaged in a passionate kiss, their tongues exploring each other's mouths as their hands roamed over each other's bodies.

"They wanted to interfere in the experiment, so now they can be part of it," Mark chuckled.

Peter heard Mark's voice, gaining a brief moment of lucidity and managed to break off the kiss with Vincent, looking over towards Mark.

"Please!" yelled Peter, "we need to cum! Please let us cum!!!"

Vincent grabbed the back of Peter's head and pressed his lips against Peter's, resuming the make-out session that Peter had temporarily broken off. Peter didn't fight it, whatever small amount of lucidity he gained wiped away by the feeling of Vincent's tongue entering his mouth and he returned to his frenzied state.

"We cranked up their libido's and conditioned them to feel each other's pleasure," Mark explained. "They can be in separate rooms, but as long as one of them is feeling any pleasurable sensation, the other will as well. Unfortunately for them, they can't make each other cum or cum by themselves. They can't seem to resist each other either. That wasn't part of the conditioning by the way, I'm guessing they had some underlying romantic feelings for each other. Kinda cute, isn't it?

Jason felt a pang of jealousy. Even after everything, he wished he could have that kind of relationship with someone. No, not just someone. With Mark. Even after all the **** Mark had put Jason through, he wanted him. He wanted Mark, he wanted his touch, his kiss, he wanted his delicious cock and his heavenly cum more than anything.

"They'll spend forever thrusting against each other, **** for an orgasm that can't happen. Unless..."

"Unless?"

"Unless you help them out. With their conditioning, they can only cum if you're pleasuring them."

Jason felt his cock getting hard as he watched the two men writhe around in a frenzied lust. He missed his chance to get Peter's cum a while back, but maybe he could get a taste now? There was Vincent as well, he hadn't had a chance to suck his cock, his mouth watering at the prospect of a new cock to taste.

"So, that's what you'll be doing today. They're your toys now, so do what you wish. Suck them off, let them fuck you, whatever you want. We also tied their conditioning to yours, so they won't return to normal until your conditioning is met. Then tomorrow, the cycle will begin again."

Mark grabbed Jason by the throat, causing Jason to whimper in pleasure as Mark pulled his face towards his own. Jason's cock throbbed, Mark's touch sending shock waves of pleasure throughout his body.

"So... make them cum lots in that needy asshole of yours, okay?"

Mark squeezed his hand a bit harder around Jason's neck, causing Jason to moan. He nodded, hungry at the prospect of getting more cum up his ass. Mark released the grip on his throat, much to Jason's dismay.

"Good little faggot."

Jason's cock twitched, he loved hearing Mark call him that. He also couldn't wait to play with the interns, but... even with two willing fuck toys before him, he still wanted Mark more. Maybe he could convince Mark to fuck him first, or even convince Mark to join them?

"Mark..." Jason said, looking up to Mark with need in his eyes. "Um... could I... spend time with you instead?

Mark's eyebrows raised in surprise as Jason leaned over and wrapped his arms around Mark, nuzzling his head into the nape of Mark's neck.

"Can I be your fuck toy instead? Please? You can do anything to me, you can **** me out or hit me, make me to disgusting and degrading things, I don't care anymore. I need you. Or you can participate, too. Make it a foursome... but please... just give me your cock."