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Extra Help-Professor Lupin x Student Reader Smut Oneshot

Summary:

*You walk into Professor Lupin’s Classroom to ask for help and catch him touching himself and offer to help*

Work Text:

It was too late. I always put it off and now it’s too late to ask for help. I sigh and close my textbook and let my head fall into my hands and tug at my hair as I stress over my essay. It was way too late to go ask for help now but I didn’t have much choice, it’s either I risk getting caught out of bed by Filch on the way and getting in trouble with Professor Lupin when I got there or fail my essay. I am already in a tight tank top and shorts because I was ready for bed so I throw on my robe to cover up. I sneak out quietly and make my way to his classroom and luckily he is still inside. I go to knock but hear muffled sounds coming from the other side of the door. I press my ear against it to hear better and make out the sounds but lose balance and fall into the door pushing it open and landing on the floor. Before I can even begin to prepare myself for the backlash that is to come from this I look up and stare dumbfounded at Professor Lupin sitting at his desk with his cock in his hand.

“Y/N!”, Professor Lupin shouts and covers himself as quickly as he can but it is already too late as it all happened so quickly.

I try to pull myself off the ground as fast as possible and look down at my feet, “Professor I am so so so sorry, I didn’t mean to barge in like this, I was coming to ask you for help if possible but I tripped over myself and fell through the door, but I was going to knock it was an accident,” I ramble out the broken truth, still staring at my feet. We stay like this in silence for a few moments before he breaks it with a sigh. I do not usually get in trouble and I am usually a good student, I procrastinate but my marks are great. This could be why Professor Lupin did not react as harshly as he could’ve. “Y/n..” Professor Lupin starts again in a much gentler tone than before. “You should not be out of bed at this time, I understand you need help but you should have asked earlier on.”

I nod and slowly bring my gaze to look up at him. I cannot believe my look, he doesn’t look nearly as angry as I thought he would. “I know Professor and I am so sorry,” I sigh. “It is just that I put off my essay and now I am struggling with it and I wanted to see if you could help me,” I say honestly. I watch as his face relaxes a bit more and tries to cover up or distract from what I saw him doing but I can’t help but think about it. I’ve always had a little crush on Professor Lupin but then again who hasn’t? If I ever had a chance with him now would be it. “You know Professor…” I start but before I can finish he cuts me off.

“Y/n,” he says firmly but not in a harsh tone, “I am sorry that you saw that, it is inappropriate for me to have been doing so in the classroom but if you can please forget about it I would greatly appreciate it and in return not gives you detention for being out of bed at this hour,” he says meeting my eyes again. His eyes meet mine again this time his eyes have a hopeless gaze.

“But Professor,” I start again and walk up closer to his desk, “I could help you out with that, if you’d like,” this time I change my tone a bit, my voice is low and enticing. I watch as his face changes and he looks captivated by me but is having an internal battle to decide what to do. I take his silence to move closer and slowly undo my robe and open it up before I let it hit the ground behind me. “Let me Professor, you do so much for me id love to return the favor.” I study his face as his eyes fill with a deep lust and his gaze explores my body in my tight tank top and teeny tiny shorts.

“Lock the door,” Professor Lupin says firmly, eyes still glued to my body. I let a small satisfied smirk grow on my face as I turn and walk to the door swinging my hips with my movements ever so slightly. I lock the door and turn back and see him pumping himself slowly. I walk behind his desk and stare at his large, throbbing cock.

“What would you like for me to do for you, Professor?” I ask looking into his eyes with an innocent look in mine.

“Use your mouth,” he says through gritted teeth and without hesitation, I drop to my knees in front of him. I take over pumping him a few times and listen to the way his breath hitches with each pump. I slowly bring my lips to his swollen tip and place a gentle kiss on the tip and let my tongue swirl around it. With that movement, his hips buck a bit a low growl leaves his throat. I feel my clit start to throb at his sounds and my panties grow wet. I shift the way I’m sitting to sit back on my heel so I can grind against it. I lick the pre-cum off his tip sending a shiver down his spine.

“You taste so good professor,” I say looking up at him but letting my lips brush against his tip. I spit on his tip and take his length in my mouth. His cock twitches in my mouth his hand shoots for my hair tugging on it as I take him deeper into my mouth and down my throat a bit. I try to keep eye contact but focus my attention on sucking in my cheeks to wrap around his throbbing cock as much as I can. I grind myself on my heel as I bob my head trying to take him deeper and deeper than possible but the way his body twitches and the way he groans makes me want to please him more than I have ever wanted to please anyone before.

“You’re doing so well for me darling,” he growls and tugs at my hair. This causes me to moan around him. Just his praise has such an effect on me. I squeeze my eyes shut as I deep-throat him as much as possible. As his cock hits the back of my throat I croak around it. Following a few sloppy bobs around his cock whilst flicking my tongue over his tip Professor Lupin’s body shudders and he forcibly pulls me off of his cock. I lick my warm lips with his pre-cum flavor still lingering and look up at him in confusion as I take advantage of this time to catch my breath. “I want to cum inside that tight little pussy of yours,” he says shamelessly with pure lust in his. My skin gets flushed instantly and I nod instantly still dazed from before. I pull myself off the ground and slowly undress myself watching his chest rise and fall as he catches his breath. “You’ve done this before correct?” He asks and pulls off my panties for me because I was not undressing as urgently as he pleased.

“Yes Professor,” I say breathlessly and watch the small smirk reappear on his face, “of course you have you, you dirty girl,” he smirks as he gently places me on his desk and spreads my legs. He gets between my legs and his tip gently rubs against my wet folds. My body shivers at the touch and my hips buck forward involuntarily.

“Oh darling you’re so wet and so eager,” he tsks condescendingly. I whimper and feel my clit throb from the degrading tone he is using but his actions do not match his words. He holds my waist gently running his rough hands up and down my silky soft skin making goosebumps appear on my skin. I watch him as his eyes roam my body, they move slowly and carefully like he is studying my body like a work of art. “Oh y/n you’re gorgeous, I can’t wait to watch your body shakes and see the faces you make as I fuck you senseless,” he says with the same smirk on his face and he slowly slides his cock into me but for now just the tip and I let my head fall back and a soft moan escape my lips as I take in the sensation. My body feels on fire and my walls clench around his tip wanting more. His grip on my waist tightens as he slowly slides in the rest of his length. I let out a gentle whimper as my walls stretched to fit his length.

“Oh Professor,” I moan softly and buck my hips for him to move. His hands slide down to my hips and he has a grip on them not too tightly though as he has been careful this whole time so as to not hurt me. I close my eyes and let my eyes roll back and moan as his thrusts begin. His movements are hard but long and slow so I can feel it all.

“Oh y/n you’re so tight,” he smirks down in the same condescending tone, however, his actions do not match his tone as he moves with passion and more intimately than fucking me like a whore. One of his hands moves from the grip he has on my hips and grabs my jaw with enough force to startle me but not nearly enough to hurt. “Open your eyes y/n, I want you to look at me while I make you feel good,” he says tightly. My cheeks turn an embarrassing shade of red and I open my eyes to look up at him. “Good girl,” he smirks and keeps his grip on my jaw forcing me to look up at him not that I mind. I take advantage of this to take in the breathtaking sight of him. His tall body is over mine and his skin is not too soft but not rough and slightly tacky from the slight sweat that coats both of our bodies from the heat of the moment. I take in the way his hips are flush with mine as I take in his full length, how his body twitches slightly and his hips buck at the completion of each thrust. I get ripped away from my thoughts when his grip tightens on my jaw and he tsks disapprovingly. “Now, now y/n I said I wanted you to look at me not my body,” he teases. I bite my lower lip and nod holding his eye contact. This becomes harder to do as his thrusts become harder and shorter and at a faster pace.

“Oh god professor!” I cry out as he continuously hits my G-spot and I start to feel as if I am going to cum already but this time it feels a bit different.

“You like that don’t you, you little slut,” he says tauntingly through gritted teeth.

“Yes,” I whimper and nod, still doing my best to maintain eye contact but the knot in my stomach grows tighter and tighter and I become a moaning mess underneath him, letting out the most profane whimpers and moans as my back arches and I do my best not cum because I do not want this to end.

“Oh you make such pretty sounds for me darling,” he teases and moves the hand that has been gripping my jaw, letting his fingers slowly trace down my spine and his hand rests at the small of my back and the hand on my hip moves and he brings his thumb to rub rough circles on my clit.

“Oh god professor!” I whine out and realize I cannot hold it anymore no matter how much I want to, “I am so close, sir,” I whimper.

“Cum for me darling,” he grunts whilst picking up his pace and rubbing my clit faster. I suck in a sharp breath and let my body relax as I try not to hold it anymore and as his thrust hits my G-spot for what feels like the millionth time I arch my back and let my body release. My hips and thighs shake as my whole body is washed over with a feeling almost indescribable. However this time my climax felt better than usual. As the wave of euphoria fades away and I focus on catching my breath as my walls clench around him, I realize I was so dazed I did not even notice when he came inside me, which disappoints me because I wish I could hear the sounds he made and the face he had on. I look around and realize I squirted all over Professor Lupin’s cock and stare at the mess I made in disbelief. “Oh darling, I made you squirt, have you ever done that before?” He asks with the same tone.

“No, Professor,” I say still trying to catch my breath and feeling so ashamed. His smirk grows and he grabs a hand towel and cleans us up carefully.

“Brilliant,” he says quietly to himself, obviously proud of himself. I slowly get up and get dressed and he does the same. We fix ourselves in silence and I get ready to head for the door. “Wait y/n,” he says and motions for me to sit in the chair in front of his desk “Your essay,” he smiles slyly. I blush and sit and we work on my essay.