"Kiss me, professor." Sans blushed as he looked up at his hot history teacher from across his large desk.

"Sans, this isn't what I called you in for. When I told you to see me after school, I meant to let you catch up on work." Grillby said and reached for a folder full of Sans' missing work from under his desk. After finding the over sized folder, he flopped it down on his desk . The weight of it made a light thump. "We'll continue where we left off right after you've completed the necessary amount of worksheets."

Sans frowned, "come on, professor. I've missed you the whole day. Besides, I need your help to get rid of a big problem..." Sans took one of Grillby's warm hands and placed it on his hardening bulge underneath his shorts, "right here~"

Sans' blue eyes relaxed as he leaned into Grillby's face slowly.

"I need motivation in order for me to start catching up, professor. I know you want to motivate me too." He whispered with a lustful tone.

"Sans, please. Your charms aren't going to work on me this time." Grillby responded while trying to ignore the feeling of his dick getting turned on by the voice of his favorite student, his secret boyfriend. He pulled his hand away from Sans' grip and tried to forget how hard he felt already. Did he really want it now?

Sans crawled up on Grillby's desk and licked his lips. He stood on his knees and brought his middle and ring finger into his mouth. He began to make loud slurping noises as he sucked on his own fingers, keeping his eyes on Grillby the whole time.

"Mmm~" he moaned and began to move his fingers back and forth hoping this act would make Grillby surrender to him.

"Sans, stop this now. I need you to focus." Grillby pulled the teen's hand away from his mouth. The sight of the small trail of saliva that connected Sans' moist lips to his wet fingers made his cock twitch. He tried not to think about it but it twitched again in protest, preventing the memory from being forgotten.

"Grillby, I can't focus right now. I want you now." He crawled with his knees closer to Grillby, biting his lower lip lightly.

"Sans..." Grillby whispered already defeated by his full arousal. He let Sans place his hands on his chest before both leaned in slowly for a kiss until they were interrupted by a knock on the door of the classroom.

"Shit, I forgot the principal needed to talk to me today." Grillby mentioned frantically, "he won't be happy if he sees one of my students in here before two."

"Should I hide?" Sans asked irritated.

"One minute please," Grillby called out and looked around to find a place for Sans to hide. He tried to find any convenient place. Any other place besides...

Grillby sighed, "Under my desk, now. Don't make a sound, don't say a word until it's safe to come out."

Sans hopped off the desk and ducked under the large teachers desk.

To avoid suspicion, Grillby pulled his chair over and sat down. He grabbed both ends of his desk to drag himself towards it carefully to avoid colliding against Sans.

"Remember, don't make a sound." He whispered without looking down at him. He later realized he should've done so when he felt Sans unzip his fly right after Grillby called out for principal Asgore to come in.

Fuck! Grillby thought.

"How are you today, Grillby?" The bearded man greeted.

"Very good, thanks." The nervous college graduate responded.

He feels Sans hands unbuckle his belt slowly and carefully.

Grillby knew this would've happened. He just did, but what else could he do now? And most importantly, how the hell did he forget that would've happen? He was alone with a horny eighteen year old student whose hormones has taken over his mind completely, for fuck's sake!

Principal Asgore took out his notepad followed by him patting around his pockets in search of a pen.

"Shoot, I believe I forgot to bring a pen. Mind if I borrow one from you?" He politely asked Grillby.

He feels Sans hands undoing his button, opening his pants and exposing the raising bulge. He makes a smacking sound with his lips low enough for only Grillby to hear.

Grillby places his left hand underneath his desk. He makes sure it looks like he's scratching his leg as he moves his hand to flip off Sans. He feels Sans' mouth lick his extended finger while he rubs his covered dick at the same time.

"Yeah, sure. No problem." Grillby easily hid his nervous tone with a cheerful one. As he reached for a black pen, be bit his lower lip from the feeling of Sans squeezing him lightly.

"Are you okay, Grillby? You look like you're in pain." Asgore asked with concern.

"No, it's nothing. I woke up with a sore throat his morning and today I had to teach a very difficult topic today. The talking made the pain worse."

He handed Asgore the pen and moved away his left hand from underneath the desk to massage his throat in order to fool the principal some more.

Then he feels Sans pull down the upper band of his boxers with his own left hand, and use his right hand to set his hard cock free from its restraint. He began to pump it slowly.

Asgore accepted the pen, obviously unaware.

"Don't worry, Grillby. I'll try to make this meeting fast so you can rest your sore throat. Now, like always, how has the grades been for this semester?"

Sans' wet tongue drags itself upwards slowly, leaving a trail of saliva on Grillby's base to its tip from the underside of his hot shaft. Grillby inhaled sharply but immediately made himself cough to disguise the truth.

"Your sore throat, right?" Asgore implied.

Grillby nodded after finishing his "coughing fit".

"I'm okay now. The grades have been the same since last month. I printed out the grade reports for each student of mine. Here you go." He took a small pile of papers that were held together by a paperclip and handed them to Asgore.

The licking continued while Asgore observed each page slowly. Grillby's eye twitched. He adjusted his glasses to hide it.

Asgore nodded at the reports approvingly, "I can actually see some students have improved overtime, Grillby. Good job."

"Thanks." He tried to smile normally but it ended up with him grinning with an open mouth. He noticed some drool dropped on his desk and immediately wiped it off with his sleeve. Thankfully Asgore was too busy looking through five more papers.

Sans can't wait any longer. He stops his teasing and licked Grillby's tip one last time before taking the whole thing in his mouth. He then sucks slowly and carefully, bobbing his head up and down to fully stimulate his teacher good.

Grillby grunted from the pleasure Sans was giving him. He grunted some more to make it sound like he was clearing his fake sore throat.

Asgore looked up after he was done and began to write on his notepad.

"Here you go, Grillby." He handed the packet back to him, "are there any troublesome students I should know about?"

Sans begins to deepthroat the throbbing dick deliciously, it causes Grillby to bite his lower lip.

"Don't mind my biting, mister Asgore. It's a habit I've had for years. And no, all my students behave wonderfully. They all know not to get on my bad side." He let out a struggling chuckle.

Asgore laughed along and looked down his notepad to write some more.

Sans moves his hands up to Grillby's cock and uses them to pump it while speeding up his head bobbing, careful not to make any slurping noises.

Grillby finally gives in, thanks to Sans being an expert at giving him blowjobs, and relaxed into his chair. His slouching causes his legs to separate further to give Sans more ease. He feels Sans smile around his dick.

"How do you feel, Grillby? Your face is getting red. Are you catching a cold?"

Grillby removed his glasses and dragged it across his eyes using the back of his hand to hide his twitching eye.

"I believe so, mister Asgore." He grunted again.

"Maybe we should cut this meeting short for now. I'm sure you'll need the day off tomorrow."

The horny teacher put his glasses back on and placed his tightly closed fist down on the desk.

"That would be highly appreciated. I'm starting to feel muscle aches now. I'll need rest before it gets worse."

Sans feels Grillby's cock twitch, warning him that his end was coming soon. He removed his mouth and uses his tongue to twirl around Grillby's tip.

"Alright, we'll continue this meeting soon. Thank you for your time and keep up the good work, Grillby."

Asgore stood up and shook hands with Grillby, who kept his place sitting on the chair.

"Thank you so much. I'll call in the day before I come back to work."

After saying their goodbyes, Grillby made sure the door was fully closed and waited for Asgore's footsteps to fade into nothing before looking down at Sans.

"Fuck you." He said as he glared at him.

"Later, after I'm finished." The class clown responded and resumed his licking without looking back at him.

Grillby tilted his head back and let out many desperate moans. Most of them being almost painfully loud. His blush deepens and his breaths become more shallow by the second. His hands squeeze both armrests as he is about to let go.

"Oh fuck~" he grunted as he came.

Sans licks the cum off Grillby's dick as fast as he can then looks up at the teacher he loves so much with a smile full of mischief.

"You'll need someone to keep you company tomorrow. You sounded very sick, I'm sure you want me to take care of you."

Grillby smiled, "shut the fuck up and kiss me, student."

"I'll take that as a yes." Sans exclaimed as he eagerly stood up to kiss Grillby's hot lips.

The end.
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Sansby teacher/student story requests are welcome.