Bad Decisions
⌦ Pairing: Prof!Changkyun (I.M) x Fem!Reader ⌦ Genre(s): Smut ⌦ Warning(s): swearing,, age gaps (changkyun's in his 30's readers in their 20's),, power dynamics,, exhibitionism (kinda),, nicknames (changkyun: sir,, professor,, reader: doll,, princess,, idk if slut constitutes itself as a nickname but its used,, ),, cream pies(pls be practice safe sex besties),, deep throating,, face fucking,, desk sex,, choking,, oral (m receiving),, Dacryphilia,, dirty talk,, spit eating (idk if thats what its called),, fingering,, humiliation,, ⌦ Word count: 2.66k ⌦ Summary: You're struggling in your history class, so naturally, you go to your professor for help. You weren't expecting to receive that type of help as well. ⌦ A/N: Listening to Hollywood Undead and Monsta X while writing this was an experience to say the least. I may or may not have written this for myself as well. Have y'all seen that tiktok of Changkyun pulling out of a parking spot w one hand? Twas truly beautiful. If there's anything you feel I should improve on in the future, don't hesitate to let me know! You can find progress updates on everything I write in my pinned post every Wednesday.:)
⌦ marz’s tag list ⌦ marz’s req form
You cried as you looked at the exam grade displayed on your computer screen. You couldn't believe what you were seeing. D+, you had studied so hard; how could you have gotten such a bad grade? You sat at your desk with your knees to your chest, crying into them.
Your head flew up as you heard the door to your dorm room swing open, followed by your roommate's keys jingling as she walked in. She sat her bag on the floor beside her bed, oblivious to your crying until she took her headphones out of her ears.
"Oh my god, y/n, are you okay? What happened??" She asked, tossing her headphones onto her bed as she rushed over to you. You sniffled a bit, turning the laptop towards her with one hand while the other wiped away the tears that had taken residence on the tip of your chin.
"I got a D on my history exam," you said. It took everything in you not to scream with how upset you were; history was the only class you were struggling in. Which didn't make any sense to you, as you really liked history.
"What the hell? You studied so hard! You study more than I do!" Your roommate gasped, her brows furrowed in confusion and irritation as she too tried to wrap her head around how you could have done so poorly on an exam you worked so hard to prepare for. You sniffled once more, turning the laptop back to you and beginning to write your professor an email asking if he were free tomorrow during his office hours.
"I'm going to go talk to him tomorrow and see if there's anything I can do to get my grade up," you said, your voice slowly going back to normal rather than the shakey, upset voice you had when your roommate walked in on your crying session.
"That's a good idea. Mr. Im is a nice professor; I'm sure he would be more than willing to help you out." Your roommate said she hugged your side reassuringly before walking back to her side of the room.
Mr. Im replied to your email sooner than you had expected; he has always told students that as soon as 5 p.m. rolled around, any emails he had would be answered the following business day.
⌦ Mr Im:
ㅤY/N,
ㅤThank you for reaching out regarding your performance in class, my office hours are open all ㅤday.
ㅤThank you, Mr. Im.
You smiled as you read the email, looking back at your roommate, who had gotten comfortable on her bed. "He's free all day tomorrow; hopefully we can get something figured out."
"That's great; I'm sure he will work with you about your grade," she reassured once more.
You sighed shakily as you stood outside your professor's office. Rarely did you ask for help, so knowing that you were about to knock on Mr. Im's door to do exactly that made you nervous. After a couple deep breaths, you knocked on the door. You were worried that you'd knocked too softly until the door swung open, revealing your professor.
"Y/N, come in; it's good to see you." Mr. Im smiled, and you stood there in awe for a moment as you soaked in his smile. He was ethereal, and you felt as though you could stare at him all day if you could.
"Nice to see you too, Mr. Im," you stuttered, stepping into the room. It was neater than you had expected; every book on the shelf was in order from biggest to smallest, and the couch that sat against the wall looked untouched. His desk looked unused aside from the stack of papers on the left corner and a water bottle that sat next to his computer; the floor was spotless as well.
"What was it you wanted to talk about, y/n?" Changkyun asked, following you to his desk once he shut the door. You both took seats in the chairs opposite each other.
"I wanted to talk about my grade; it's not great," you said, rubbing the back of your neck nervously.
"I'm well aware that your grade isn't anything to brag about," he replied, leaning back in his chair.
"Right.." You said that, blushing a bit as you looked down.
"I suppose you're hoping I can help you fix that?" He asked, and his tone came off more condescending than he had meant it.
"Yeah, if you'd be so kind,"
"Well, if you paid better attention in my class, you might do better," he suggested. Your head snapped up at him as you looked at him with widened eyes. He smirked softly, beginning to speak as he stood up from his chair. "Don't act so surprised, y/n; I see how you stare at me during class; it's pretty obvious." He said, you hadn't noticed that he was standing right next to you until he gently took hold of your chin, forcing you to look up at him.
"It makes me wonder what's going on in that pretty little head of yours," he said, running his thumb against your bottom lip as he spoke. His voice had gotten deeper—sexier even, if that were possible. Instinctively, you parted your lips as you kept your eyes trained on him. "You and I both know that you're capable of studying for my exams, so I'll cut you a deal; I'll fix your grade if you do something for me."
Your professor seemed more talkative than normal, but you assumed anyone would be if they were discussing "deals" with another person. It was your turn to speak now. Before you could, however, his thumb found itself inside your mouth, pressing itself down on your tongue. Changkyun stood still as he waited for an answer, looking down at you with lidded eyes. You nodded in response to his offer.
Changkyun only smiled at this as his free hand worked at his belt. You moved your eyes to his hand as your hands reached up to aid him in taking his belt off. He jerked your head up gently, forcing you to look back up at him. "Eyes on me, doll."
Undoing the clasp of his belt and the buttons of his pants without being able to look at them seemed to be somewhat of a struggle. But the reward behind the zipper was worth the struggle. Changkyun moved his hand from your chin to your head once you pulled his pants down just enough for his cock to spring out.
You broke eye contact with your professor long enough to glance at his cock, your mouth watering at the sight. You brought a hand to pump at the base, looking back up at him as you began pumping his cock with a steady pace. His breath hitched slightly when you let your tongue run against the pink tip of his cock.
"Fuck, you look so pretty like this, princess," he breathed out as you took the head of his cock into your mouth. He gripped your hair roughly, forcing himself the rest of the way into your mouth. You did your best not to gag, though your efforts proved futile when the tip of his cock brushed against your throat.
The sound of your gag seemed to spark something within him as his hips began thrusting themselves into you and shoving his cock further down your throat. Tears began to form in the corners of your eyes from how harshly he was thrusting into you. The lewd sounds of your gags mixed with his groans of pleasure and the saliva being churned in your mouth filled the room. You were surprised no one had heard you two yet.
Just when you were certain your professor was only going to abuse your throat, he pulled out of you, pulling you to stand. Immediately, you leaned in to kiss him, the both of you hungrily attacking each other's mouths. Your hands found their way to Changkyun's collar, tugging him closer as you sat on his desk. Your fingers worked to undo the buttons on his shirt while his worked at the buttons on your pants. You mentally cursed at yourself for not taking your roommate's advice on the skirt she suggested you wear.
You pushed Changkyun's shirt off his shoulders, letting it fall to the floor, before aiding him in taking your pants off. His hand found itself resting against your heat as his thumb rubbed itself against your clothed clit. You whimpered at his soft teasing, bucking your hips against his hand.
"Patience, princess, I'll fill you up soon," he said against your lips, his fingers still teasing you through your panties.
"Yes, sir," you replied, whining when he pulled your panties aside to continue teasing your hole. "Just take them off," you begged, moving a hand down to push your panties off.
Changkyun chuckled at your impatience but obliged, pulling your panties off the rest of the way, his hand finding itself attached to your heat once more. "You're so wet already, doll," he commented, emphasizing his words by slipping his middle finger into your hole. A soft moan escaped your lips, and you pulled away from the kiss to let your head fall back.
You let your eyes close as your professor began to pump his finger in and out of your hole. You pulled your shirt off as Changkyun inserted another finger, the surprise causing you to drop your shirt onto his desk, letting yourself lean against your hand as his thumb rubbed itself against your clit once more.
"F-fuck, professor, please," you begged as your head fell back. His fingers felt like magic against the nerves between your thighs.
"Please what, princess? Use your words," he said, his free hand reaching behind your back to unclasp your bra. You were surprised at how well your professor did tasks with one hand that would have required a normal person to use two.
"Fuck me, please," you whined, your free hand gripping at his toned biceps. He smirked at your request, pulling his fingers out of you and leaving your hole empty momentarily as he reached into his wallet to grab a condom. Your head snapped up to look at him, and your hand flew up to stop him, looking at him pleadingly.
He looked at you with a confused expression, his confusion disappearing once you opened your mouth to say, "I know you want to fuck your cum into me just as much as I want you to."
You weren't sure where this new bout of confidence came from, but the look on your professor's face when you spoke went straight to your core. You could feel the slick beginning to run down your thighs as you bit your lip. He tossed the partially opened condom onto the floor along with his wallet before pulling you closer by your thighs.
"If you keep talking like that, kitten, I might have to take you home with me," he said as he took his cock in one hand, his other pushing your thigh up even more, causing you to lie on your back. You whimpered as Changkyun rubbed his cock against your folds, propping yourself up on your elbows to watch him.
"You'd like that, wouldn't you, princess?" Changkyun began as he slowly thrust himself into you. It took all the strength you had not to let your head fall back so you could watch as your professor's cock disappeared into your hole before reappearing again once you'd had time to adjust to his size.
You bit your lip as Changkyun began speaking again, painting a more detailed picture in your head of what he was talking about. "You'd like it if I took you home and fucked you like the little slut you are," he said, letting his hand rest against your throat, squeezing just enough to feel good but not enough to cause any serious harm.
You nodded in response, letting your body fall back against the desk so you could use your hands to hold your thighs open. "Yes, sir, I'd like that very much." You whined.
Changkyun wasted no time as he snapped his hips into you at a rapid pace, leaning his body against yours so you were eye to eye. The way his body pinned you in place prevented you from arching your back while simultaneously forcing your legs to rest themselves against his shoulders, allowing him to pound deeper into your walls.
You couldn't help the loud moans that came out of your mouth as his tip brutally hit your sweet spot. His hand moved from your throat to slip his fingers into your mouth, muffling any noises that escaped your lips.
"Be quiet, princess; you don't want anyone to catch us now, do you?" He asked, and his question, along with the taste of your slick still on his fingers, caused a whimper to fall from your lips. You shook your head, and the sight of you tasting yourself on Changkyun's fingers caused his dick to twitch inside you.
Only when he thought you were capable of controlling your sounds did he remove his fingers from your mouth, this time gripping at your jaw just as he had done earlier.
"I bet you let all your professors slut you out like this, don't you?" He taunted, angling his hips so every thrust would push the head of his cock against the bundle of nerves that had you seeing stars each time it was hit. His hand keeping a firm grasp on your chin prevented you from shaking your head in protest; he took this opportunity to spit into your mouth to further humiliate you.
His words and the act of him spitting into your mouth went right to your core, and your walls began to contract around his cock.
"N-No sir! J-Just you—fuck, I'm so close," you moaned, digging your heels into his shoulder blades in attempts to pull him closer. You reached back to grip the edge of the desk, effectively pushing the ungraded papers onto the floor.
"Go ahead, princess, cum on my cock," he panted, feeling the knot in his stomach begin to tighten as well. He propped himself up on his hands to give himself more leverage, his thrusts going deeper and harder than they had been previously.
It took a few more harsh thrusts on his end before the coil in your stomach snapped and you were sent over the edge. Your hand clamped itself over your mouth to muffle the wanton moan that escaped your throat as you felt your hole flutter against his cock and your arousal slowly ran down Changkyun's cock. You were positive he would have a stain there afterwards.
The tight grip your walls used to hold Changkyun in was enough for him to fall over the edge, a soft whimper escaping his mouth as he finished. He thrust his cum back into you a few times as he rode out his orgasm, his thrusts coming to a full stop, and he caught his breath before pulling out. He watched as his cum dripped out of your hole and down the side of his desk.
"Here," Changkyun said, handing you a water bottle as he helped you sit up. You weren't sure when he'd walked away, but he had already cleaned himself and adjusted his pants. You winced as you sat up, taking the water bottle from him.
"Thank you," you said as you opened the bottle, taking a sip. You watched as Changkyun gently wiped you clean with a few tissues he had taken from the box that surprisingly didn't fall.
He tossed the soiled tissues into the trash can beside his desk before he leaned in to whisper into your ear.
"I expect you to pick those papers up, and I was serious about taking you back to my place."












