Thread by @rayneclouds_ao3

#sakuatsu | college prof x student pt. 5 | NSFW | a talk after class

Atsumu, who had learned from his past mistakes, quickened his pace while Osamu, who wanted to avoid another hotel-situation and therefore listened to his brother in regards to his outfit, slowed down.

https://twitter.com/rayneclouds_ao3/status/1648431966495326208

For once, they seamlessly switched places and it was now Atsumu that trailed behind Sakusa.

He purposely bumped into Sakusa’s back as they stopped in front of his office.

“Miya-“ 

“Yes, professor Sakusa,” Atsumu interrupted.

“Just get inside,” Sakusa ordered.

Atsumu

affectionately tapped the professor behind. “I’d love to.”

He leapt over the threshold so as to not get shut out by an angry Sakusa. But Sakusa’s reaction was a flushed face and avoiding eye contact from embarrassment.

Sakusa kept his eyes on the floor, walked over to the

two-seater and sat down. 

“When I agreed to make this a regular thing,” he began. “I did not agree to be one of many playthings.”

/Wait, when did he agree?/

“One of many?” Atsumu questioned. “Playthings?”

“That time at the hotel. I’m not an idiot. You were texting and meeting

someone else.”

/True, but that was Samu./

“What else?” Atsumu wondered, wanting to know just how much Sakusa had observed. 

“In my own class, you flirt with someone else.” Sakusa’s lower lash line was filling up with tears. “You’re very cruel, Miya.” He leaned back in the

couch, letting his head rest with eyes up at the ceiling in an attempt to stop the tears.

/Not flirting and again that was Samu./

“So that’s what you wanted to talk about after class?”

“No,” Sakusa heisted, but ultimately decided to be honest. “I actually wanted to show you

something.”

He stood up and unzipped his pants, but kept them from unfolding and revealing the garment underneath.

Atsumu closed the distance between them. “Want help?” He placed his hands on Sakusa’s waist, moved them downwards along the back of his clothes, all the way down

where he expected to feel the fabric of a pair of boxers.

But what he felt was the warm, naked skin of someone who wasn’t wearing anything.

Before he asked, he traced his fingers back to the waistline and felt a string going around.

“Is this for me?” Atsumu smirked, but Sakusa

didn’t notice as his head was buried on Atsumu’s shoulder.

Atsumu continued to explore. When he followed the string to the back, he found a triangle of fabric at the very top, leaving most of Sakusa’s ass uncovered.

“Here,” he said and gently moved Sakusa backwards and down

while sliding down the pants. When Saksua was seated again, the underwear was still not showing as his shirt was covering it.

“All the dirt, and filth and-“ Sakusa started to air his concerns about sitting with a naked ass on the couch, but Atsumu made it clear how that would be

the least of his concerns.
 
With a loose grip on Sakusa’s thighs, Atsumu felt the smooth skin under his fingers, then with his thumbs, he brushed on top of the panties.

It was lace, it was mesh, it was soft. Atsumu still couldn’t see the extent of it from the shirt covering

half of the underwear. 

“Lift up your shirt,” he said and Sakusa did as he was told.

“How sexy.” Atsumu licked his upper lip and bit down the lower part. The lace was gold, flowers and leaves making up the pattern and the rest was pitch black.

“Don’t look at them.” The sudden

realization of what he was showing Atsumu hit him, and a wave of embarrassment washed over Sakusa. He moved one leg to hide, but Atsumu simply pushed it back down again.

“You did this for me, I have to show you my appreciation.”

Atsumu applied more pressure to his touch and

rubbed his thumbs back and forth, again and again, on top of the panties. At the same time, his other fingers were massaging the area underneath. Feeling the skin tighten as Sakusa’s dick got hard, was driving Atsumu crazy.

“Please stop the teasing, Miya…” There was a pause as

if Sakusa wanted to say more. “Os…”

/Os? Dammit he’s about to call the wrong name./

Before Sakusa could speak again, Atsumu dived down and wrapped his lips around the part of the panties that were concealing the tip of Sakusa’s dick.

With his mouth full, the words coming from

Atsumu were muffled, leaving Sakusa to interpret their meaning.

“You can stop now, it’s enough…” he said feeling unsure if he had understood correctly.

Atsumu let go. “Keep calling me Miya, professor Sakusa,” he clarified.

Sakusa simply nodded to the wish. Atsumu’s hands had

now moved to holding both dick and panties, the tip peeking out from under the hem.

“Cute,” Atsumu said as he kissed the tip, then another kiss on the side, and a third kiss at the base. He pushed his tongue between Saksua’s dick and the soft fabric, sliding it from the bottom

to the top still locking the panties in place with his thumbs.
 
“You made me wait for weeks for a second taste,” Atsumu pouted, looking up at Sakusa with big, open eyes.

Sakusa wanted badly to ‘humph’ but no sounds were making their way out, and even worse was the return of the

uncomfortable feeling, that had first appeared a week ago

“I can make it months,” Sakusa said out of spite.

Atsumu smirked and kissed him, pressing his body on Sakusa’s dick which was, with the friction from the fabric, twitching with eagerness for more.

He pushed down harder,

going in deeper with his tongue. Just when Sakusa broke them apart for some much needed air, someone knocked on the door.

“Professor? Are you there?”

Disregarding whoever was on the other side of the door, Atsumu continued playing with Sakusa’s dick and told him,

“whether you want to be quiet or not is up to you.”

Then he pulled down the panties and put not only the tip, but all of Sakusa’s dick in his mouth.

/end part 5