You and Eren had been together for a few years, when you met and immediately hit it off at a freshman party. You went to the same college, and while you pursued your dream career, he pursued both Anthropology and Relativity. Both you and him shared a general Science professor. However, her class was only necessary for the second semester of your third year and into your fourth, but of course, she didn't like you. While you could never quite figure out why, Eren believed it was because you only joined her class in late January, which meant you were behind in a lot of areas, which meant she would have to explain more to you than the rest of the class.
Many times in class you'd completely spaced out, getting lost in your own fantasies of your boyfriend, sometimes writing down our scenarios or doodling randomly to keep yourself distracted. While your professor never caught on, she did warn you many times to redirect your attention to the lesson instead of your notebook. Thankfully, her classroom was laid out in a configuration of scientific table-style desks, and because you joined later in the year, meaning the main desks had already been assigned, your desk was located in the back of the room, facing the wall, which granted you a bit more privacy from both her and other students.
The campus was a winding twisty-turny maze of hallways, both indoors and outdoors, and it took several months out of your freshman year to figure out your specific routes, and absolutely refusing to go any other way to get places because the school was so expansive. Of course, Eren caught on and teased you about it, calling you "Directionally Challenged" and "My Distressed Damsel", because he had to come get you multiple times when you'd gotten lost because either construction or company forced the school to redirect lines of students through a different exit than usual.
On the afternoon of March 29th, the day before his birthday, you and him are laying in his dorm, silently lounging in pajamas and scrolling on your phones, when Eren suddenly pipes up, "I've seen your notebook." When you rush to defend yourself, he simply smiles, his charismatic charm instantly calming your panic, "Don't be embarrassed. I'm your boyfriend, I'd try just about anything you wanted me to if it meant your satisfaction, got it?" He grins, and when you fumble out the words "That's still an invasion of my privacy", he turns his tone apologetic and sweet, "Aw, I'm sorry baby. How about this - as an apology, we can try any one of your 'fantasies'. Here and now. As a form of birthday gift for me. What do you think about that?" Eren leans over and pets your hair, gently running his index finger down your nose before pulling back.
You, as every college student with anxiety would, had your fantasies separated from your school notes, and categorized in a way that made them easy to remember. When you flip through the pages, Eren watches you linger on a specific one, one detailed very vaguely as you and him sneaking into the science classroom late at night and having sex on your desk as an act of defiance against the professor. "That one's my favorite, y'know." Eren hums, taking the notebook from you and reading the scenario as if it were IKEA instructions on how to please a woman. "So, this is your final pick? Good choice." He whispers before kissing the tip of your nose and pulling you into bed with him to rest.
Eren's alarm clock is the only source of light in his dark dorm, lighting the nightstand in red, the clock face reading "1:00AM". Eren gently rouses you from the nap you'd been taking, whispering close to your ear, "You ready, baby?" Meanwhile, he'd been resting his hand on your inner thigh, trying to get you riled up. Your eyes pop wide open as you leap up from the bed, excited, ready. You'd been fantasizing about him doing this for several weeks, ever since initially getting into her class.
As you and Eren sneak into the cold, dark campus, he leads you through the winding hallways, stopping at the science classroom, which, most of the campus had been left unlocked, as the school believed in a form of Camera policy, meaning, they would allow any student or teacher to break in at any point, but the person responsible would always be caught on the cameras and brought in the next morning for punishment. As Eren pulls the door open and leads you inside, he notices the calm meditation style music that the professor had left playing on her monitor, the same music she played all day in class, as a means of keeping a calm learning space.
Eren spots your desk and leads you over to it, taking the chair down from on top of it and hoisting you up on top of the black vinyl surface, the table being just a few inches shorter than your height in its length. Eren holds you in his grasp, his emerald eyes settling on yours. He gently eases your top off, relishing in the fact that you weren't wearing a bra, "Happy Birthday to me," He comments in a sly voice, causing you to scoff and roll your eyes, "Do you always have to be so… You?" To which he responds with, "Sorry, Princess, no can do. Gotta show my babygirl some love, or else I wouldn't be much of a good boyfriend, now would I?"
Eren pulls his hoodie off, watching as your gaze lands on his perfectly toned stomach and chest, "You're staring. You like what you see, Princess?" He grins, flexing his abs. "Don't be weird." You mumble, despite secretly liking it. Eren slips his hands around the waistline of your pants, pulling them down to your thighs, "Really? Lacy underwear? Were you predicting the occasion, baby?" He taunts, slipping his large and somewhat callous fingers under the delicate lace, reaching for your clit. "You're shaking. And you're soaking wet. Just how excited for me are you, baby?" He whispers close to your ear. He gently teases your clit, just barely rubbing the tip of his finger over the bundle of nerves, watching you squirm and stall in his grasp.
He inserts his middle and ring fingers into your sopping wet cunt, groaning under his breath as your pussy clenches down on his fingers, struggling to take in their width. "God, you feel so fucking tight. Gonna stretch this pussy out before I can fuck you." He mumbles, moving his fingers in and out in slow repetitions, rubbing the pad of his thumb over your clit in tight circles, feeling you melt into him and lean forward into his bare chest as you tremble and bounce against the desk. "Eren please, I'm gonna cum don't stop!" You beg, your knuckles turning white from how tightly you grip the edge of the desk. Eren removes his hand altogether, "Not yet, baby. Not yet." He whispers, sinking down onto his knees, pulling your legs open.
Eren's mouth makes contact with your pussy, tongue delving into your throbbing core, making a mess of his face. "Ah! Eren!" You cry, fingers finging his hair, ever so slightly pulling him closer into you as your eyes roll back from the pure stimulation he was giving you. He moves his mouth up to suck on your clit, his fingers entering your cunt as his tongue swirls over the small bundle. When your pussy tightens around his fingers and your legs start to close in on his head, he knows you're close. He pulls back with a soft "pop", switching again, his fingers rubbing your clit while his mouth latches onto your hole, "Cum for me, let me taste you. Let me taste how much you love me." He whispers huskily, the tiniest whimper of pain coming out of his lips as his pants grow unbearably tight around him.
When you finally cum, your head falls back as you're surrendered to the throws of an intense orgasm. Eren rises to his feet and supports your head, protecting you from thrashing too much, "Easy, baby, easy… I've got you. Such a good girl, cumming for me like that." He whispers. When you come down from your orgasm, he tugs his pants off, letting his erection spring up freely. He lays you down on the desk and gets between your legs, resting your ankles over his shoulders. He lines up his dick with your entrance before slamming into you full force, closing his eyes as a sense of relief washes over him. "Been thinking about this pussy for a while," He starts, mumbling and talking you through it, "Feel so fucking good, baby. I don't remember you being this tight. Just that needy for my cock, huh?" He kisses your neck, latching onto the skin and sucking gently, leaving several hickeys across your skin.
"Oh god, I'm fucking close," He whines, his hands shaking as he braces himself on the desk, "You gonna take my cum like a good girl, yeah?" He mutters, his pace in thrusts speeding up until finally, with a loud, pathetic whimper, he cums, shooting his seed into you as you tremble and cum around his dick. After several moments of laying there and twitching fro aftershocks, he breathes heavily and pulls back, looking into your eyes, "Fucking hell, babygirl. Didn't know you had it in you to do all that." He exhales as he lowers down from the desk and pulls your wobbly form into his arms, leaving the mess of your mixed juices on the table for the professor to find in the morning.
He carries you back to his dorm, laying you in bed to get some more rest. Around 8am, both you and him go to classes as normal, and when you get into the science classroom, you se the professor wiping down your desk with disinfectant while muttering and cursing to herself. When you cheekily ask what's wrong, she mumbles, "Some asshole spilled milk all over my desks!" You and Eren look at each other with a smug look before you set your bag down, "Oh, you have no idea."