Chocolate and milk (Private, between dablackstallion and myself)

Mark fought the urge to groan as Alec began to caress his abs. It only made him hornier. Mark couldn't stand being stationary like this. He wanted to moan as loud as he could and buck his hips wildly into Alec. He wanted to show his master what a stallion he had tamed, but alas, all he could do now is make himself hornier and hornier for Alec and give Alec all of his sweet chocolate juice.

[Tritium]

"Give it all up, filth! Alec mumbled, before taking Mark deep inside his throat. He had no experience whatsoever, yet he decided to go ahead with it anyway. Mark belonged to him now, so he had the right to do whatever he wanted to his body!

Mark couldn't help but moan when Alec deep throated him. Mark was lost to the pleasure. He wanted to please his master, but he wanted his release even more. He gently bucked his hips into Alec's mouth, hoping his master would grant him this one wish. His cock was overflowing with his pre-cum. It wasn't a strange sight to see the pre-cum drip out of Alec's mouth, but Mark was happy to see that. It meant he was giving Alec everything he wanted.

Mark slowly started to buck his hips a little faster, hoping that Alec wouldn't punish him for doing this.

[Tritium]

The thought of chastising Mark for his sudden boldness had crossed his mind, however, being occupied with savoring his meat, Alec decided to make a small concession. After all, the guy had surrendered his body to him, allowing him to play out his dirty fantasies. He'd surely put him back in his place if Mark were to cross the line.
He couldn’t believe what he was doing to an older student. He’d barely met him that very day, and surely he’d never have imagined they’d end up in such a compromising position hours later. Yet there they were, doing all sorts of shameful and unmentionable things. It was a very dangerous and risky endevour, as it could mean the end of their days at that perstigious college, should their private affair ever be discovered. And that made it even more interesting and worthwhile.

Mark noticed that Alec wasn't punishing him for bucking his hips. Mark decided to go faster and faster, eventually bucking so roughly that he had to use his hands to keep Alec's head on his cock. All of his pent up sexual energy was slowly being released as he continued to face-fuck Alec with all of his might, pounding his mouth with his thick, juicy, massive black cock.

[Tritium]

He never expected his dog to overstep his grounds, by forcefully pushing that meaty penis deeper inside his throat. He was trying to go slow, yet the guy wanted it fast. Such boldness could not go unpunished, and Alec grabbed the base of his penis, pulling it out of his mouth, and glaring at Mark with his piercing gaze.
"What do you think you're doing, slave?"

Mark let out a whimper as Alec pulled the cock out of his mouth. He was too horny to hear anything Alec was saying, all he wanted was his Master's sweet mouth around his cock. Mark kept bucking his hips, trying to push his cock back into Alec's mouth.

[Tritium]

"Stop it, what are you, a horny animal?" Alec admonished him, pushing him against the wall. "I thought I told you to behave yourself, or I will have to discipline you."

The way his Master said those words, that's what he was right now. A wild, horny animal that needed to be tamed. He continued to buck his hips wildly, managing to brush the head of his cock several times across Alec's lips.

[Tritium]

"You've got 10 seconds to stop, otherwise I'm leaving. And it that happens, you're toast." Alec threatened him, slightly squeezing his testes. "Decide, and fast!"