Archive of Our Own ^beta

“Come in,” Arthur greeted loudly from his desk at front of the lecture hall. “Find a seat. I will start shortly.”

A steady stream of students filed in as Arthur stayed seated, studiously marking some essays. He distractedly replied to each “morning professor” and “how are you, professor pendragon?”. When his watch showed that it was 9am, Arthur turned on the projector, queuing up his lecture slides.

“We ready to get started?” Arthur asked as a few stragglers slipped in to find their seats.

“Um, sir?” a female voice calls from the back of the hall. “Merlin isn’t here.”

Arthur gave a tight smile and shook his head. Merlin was the class clown; always chatting, making dirty jokes, and passing around lollies to his classmates. Arthur, furious at his audacity, had contemplated moving Merlin from his class into the afternoon class with Professor Gaius.

The problem was: Merlin was brilliant. Despite his misbehaviour, he was always the one with his hand up, finishing questions before the rest of the class and generously moving around to help others. Arthur could picture Merlin going very far in his career, if only he would just SHUT UP.

“Merlin won’t be joining us today,” Arthur said smoothly and flicked to the first slide. “After his incessant chatter yesterday in class, I asked him to reflect on his commitment to his studies or find a way to control his mouth.”

There was a spatter of laughter and some unhappy mutters because Merlin was, for the most part, adored by his peers.

The mouth around Arthur’s cock curved in a grin, tongue playfully tickling the underside. Arthur gritted his teeth and dropped a hand on dark hair, tugging in warning. Merlin huffed a laugh against Arthur’s semi-hard cock but went still, letting the flesh rest heavy on his tongue. Arthur turned his attention back to the group, questioning them about the readings from the previous lesson. Without Merlin’s infallible hand in the air, Arthur was forced to pick students to answer his questions.

Merlin, on his part, was being very obedient. He knelt under Arthur’s large wooden desk, quietly scribbling his answers on a notepad, his mouth was gagged by Arthur’s cock. He occasionally had to swallow around Arthur’s cock, or risk drooling. The first time it had happened, Arthur bodily jerked. Luckily, the students had been filtering into the hall and missed their professor’s reaction. Merlin’s laughter had vibrated against Arthur’s dick, making it swell further. Arthur subtly nudged Merlin with his shoe and then again more forcefully until Merlin controlled his mirth. Arthur knew that his cock was dripping a steady stream of precum onto Merlin’s tongue, but the younger man didn’t seem to mind.

Merlin had now taken to tapping Arthur’s knee in warning before he swallowed so Arthur was somewhat prepared. (Not that Arthur could ever be prepared for the torrent of pleasurable sensation that came from Merlin’s mouth) Otherwise, Merlin stayed perfecting still, lips stretched and warm around Arthur’s pulsing member.

And for the first time since the start of the semester, Merlin was silent; the picture of the model student.

---

When Arthur had asked Merlin to stay behind after yesterday’s lecture, Merlin had sauntered to the front of the lecture room, chewing on some skittles. Arthur had had to stop the lesson four times because of Merlin’s chatting and giggling. With exams around the corner Arthur’s patience had worn thin.

“Merlin, your attitude in my classes is horrendous. If you don’t shape up next lesson, I’ll transfer you to the afternoon class. Do you understand?” Arthur demanded; arms crossed.

Merlin had the decency to look sheepish and put his bag of skittles in his pocket. “I’m sorry, sir. I don’t mean to be disrespectful! When I’m in your class, I just can’t seem to control my….” Merlin’s eyes swept Arthur’s body, up and down, “…mouth,” Merlin finished, with a salacious smile.

Arthur’s cheeks flamed and he gulped around his suddenly dry throat. Not that Arthur wasn’t used to the lingering attention and occasional thirsty glances from his students, but none had ever been so blatant. “Well, you need to find a way to control that mouth of yours or I will,” Arthur said, trying to sound threatening but sounded hoarse.

Merlin’s face changed; the flirty smirk replaced with daring. He stepped close, placing both his palms on Arthur’s desk, and leaning in until his breath fanned over Arthur’s chin. Arthur forced himself to stay put, staring down into Merlin’s sapphire eyes.

“And how exactly do you plan on doing that, Professor Pendragon?” Merlin had asked slowly. His eyes flicked down to Arthur’s crotch suggestively and Arthur’s traitorous dick twitched as he watched Merlin wet his lips with a purposeful swipe of his tongue.

---

Arthur dropped a hand to Merlin’s head, absently carding his fingers through the soft locks. He had set the class a few practice questions on the screen and knew it would be several minutes before they finished. In the background noises of student murmurs and scratching of pens, Arthur dared shuffling back so he could address the youth on his knees.

“How are you doing, Merlin?” Arthur asked, lips barely moving as he pretended to be engrossed in his marking. Merlin replied with a hum against Arthur’s cock, sending a wave of pleasure through Arthur’s body. Arthur felt Merlin’s notepad tap against his thigh and risked a glance down to the paper. Merlin had completed every question Arthur had dictated from the screen, accurately and with meticulous detail. Arthur’s chest swelling with pride and couldn’t help the pleased smile the spread over his face.

“That’s my good boy,” he whispered patting Merlin’s hair. Arthur felt Merlin stiffen and he started to backtrack, but the words withered when he felt Merlin swallow around his cock without warning. Arthur shuddered at the sensation, fingers tightening reflexively in Merlin’s hair. Arthur took deep breaths trying to calm his racing heart when he felt it again; Merlin’s tongue caressing his throbbing dick.

Arthur had only allowed for half his cock to be fed into Merlin’s mouth, convincing Merlin that that was enough to keep him quiet and finish his work. Merlin had agreed with a chuckle and accepted the bulbous head of Arthur’s cock and allowed Arthur to control the depth. But now that Merlin had finished his work, he slid down Arthur’s cock, taking it deeper, inch by inch.

“Merlin,” Arthur breathed, trying only half-heartedly to push him back. Merlin’s hands squeezed Arthur’s thighs, as he bottomed down on Arthur’s cock. Arthur groaned quietly behind his hand when Merlin’s throat tightened around Arthur’s tip, gagging.

“God, Merlin,” Arthur whimpered, as Merlin pulled back to lick at the precum beading on Arthur’s slit. Arthur, having lost all his resolve to keep Merlin still, bucked encouragingly under Merlin’s touch. Merlin took this as an invitation to slip his lips over the sensitive head of Arthur’s cock and hollow his cheeks as he sucked with rough abandon.

Arthur’s whined, eyes clamping shut at the overwhelming cascade of pleasure.

“Professor?” A voice broke through Arthur’s hazy mind, startling him. He looked up to see the concerned faces of his students. Arthur had momentarily forgotten where he was, so transfixed by Merlin’s wicked mouth. “Are you alright, sir?”

“Um, yes. I mean, no,” Arthur answered, voice thready. “Let’s finish here today. I don’t… er, feel good. We will pick this up next lesson.” Some students looked confused, others worried, but most packed quickly excited by the impromptu early mark. When the hall was finally empty Arthur pushed his chair back, revealing Merlin, grinning up at him, with his hand lazily stroking Arthur’s dick.

“Looks like I wasn’t the one having trouble being quiet this lesson,” Merlin mused earning him a playful cuff on the back of his head.

“And who’s fault was that?” Arthur said in mock indignation. “Now, finish what you started,” He ordered, pushing Merlin’s head towards his red, pulsing cock.

“Yes, sir,” Merlin responded looking up at him reverently as he sunk back down onto Arthur’s dick. Letting his tongue rub along the veiny underside, Merlin clamped his lips around the smooth skin. Merlin bobbed his head up and down, using his hand to stroke the remaining length as he sucked Arthur of with tremendous skill. Arthur distractedly questioned if there anything Merlin wasn’t good at, as his climax approached, fast and hard. Arthur gasped a strained warning before jerking into Merlin’s mouth, filling it with hot streams of white. Merlin swallowed dutifully, licking Arthur clean as he came down from his orgasm.

Through barely opened eyes, Arthur laughed as Merlin tucked him carefully back into his pants. “I think I caught your lack of control, Merlin. You really are the bane of my existence.”

“But am I still your good boy?” Merlin asked, looking endearingly shy as he wiped his mouth on his sleeve. Arthur smiled, pulling Merlin up onto his lap and kissing him softly.

“Always.”