Bustin’ Makes Me Feel Good (Egon Spengler x Reader) [18+]
A/N: Hello again! Sorry this one took me longer to write than usual! The experiment this time is stamina! It took me so long to write bc...the experiment is long lol. I hope this makes up for not putting any writing out for the last two weeks! I hope you guys enjoy this labor of love! Comments, suggestions, and reblogs are very much appreciated. MUAH! Chapter 1 | Chapter 2 warnings: smut, minors dni, sex experiments, multiple orgasms, vibrator use, stamina, fluff at the end, dirty talk, oral sex (m and f receiving), p in v sex, squirting word count: 5,252
Chapter 3: Stamina
After you and Egon had recorded the vital measurements from the previous week’s experiment, he had tapped you on the shoulder the next day, causing you to turn around in your chair.
“Yes, Dr. Spengler?”
“I just wanted to tell you that your hypothesis was correct. The plateau stage while I held the toy shortened by 43 percent,” he stated matter-of-factly.
You flashed a small grin at him, feeling your ears burn red. “Oh, well, that’s good, right? There’s some interesting data there. It must give you insight to see how different erotic things that may seem simple can actually have quite the impact on a person’s arousal. Everyone is different.”
“That’s true. I just wanted to let you know. Well done.”
His praise made your heart feel like it was being throttled. Pride welled in your chest as you rode the high from that compliment the rest of the day, letting it spur you on. As you each busied yourselves in repairing traps, taking measurements of the ECU, and snacking, you almost lost track of time. Egon was out hardly at all today, which was unusual, but not unwelcome. You had leaned over to grab a pair of pliers to tuck some loose wiring back into place, when Dr. Spengler, also lost in thought, reached for the same pair. You both heard a small thud as your heads collided, making you both jump and hiss in pain. It wasn’t a hard bump, but it was enough to make you both stop for a minute to collect yourselves. He was the first to speak.
“Sorry, I should’ve been paying more attention to my surroundings.”
“No, no, I’m sorry. I’m usually more spatially conscious,” you fumbled, your fingers gently massaging where the two skulls had clacked.
His fingers inspected his forehead before he took your hand and moved it out of the way, inspecting yours as well. “I think we’ll be fine, just a mild contusion will form. No brain damage.”
You were glad for his assessment, your fingers absentmindedly rubbing the back of his hand. He didn’t notice until he was done assessing you, seeing a haze over your eyes. He furrowed his brow before looking down. Just the tender sight of your hand in his made his cheeks flush. He cleared his throat, shaking you from your daze and, in turn, the removal of your hand slowly from his. Your ears ran hot as you stuttered for an apology, not sure if you even should, but your momma raised you right.
“Egon, I really-”
“Don’t. To apologize is ridiculous. After everything we’ve been doing, I doubt touching hands is going to endanger either of us from bacterial infection.”
You sat stunned for a moment as you took in what he said. Should you go along with him thinking you were wary of infection? That you knew he didn’t like to shake hands, and that’s why you were apologizing? “Oh, okay,” you muttered.
He reached for your hand, taking it delicately. “See? No harm done. Plus, I know we’re very careful about being clean in the lab.”
You nodded, amazed at his lack of awareness of what exactly you were going to apologize for. He knew you had feelings for him. You were still trying to memorize the feeling of his hands. Meanwhile, Egon had specifically avoided acknowledging your intimate touch at that moment. He knew if he gave in to it, he might have started the night’s research much too early, endangering the experiments’ secrecy from the rest of the Ghostbusters crew. Peter had suspicions, but Egon was firm in insisting there was nothing going on, and he’d be damned if he was going to let Peter know he was right. He had felt a pang of hurt in his chest when he had told you not to worry about infection, scared it would ruin your adoration of him when he knew he meant none of it. Luckily, this action had a minimal impact on you. Your feelings were rooted too deep to allow thoughts of doubt to seep in now.
That evening, you two had shared a light meal from a local Thai restaurant, bonding over your fascination with biological sciences and psychology. After getting washed up, you went out of the lab to check and see if anyone else was around. Ecto was gone, and you didn’t hear Janine downstairs. You went to check the kitchen and still found no one. The coast is clear. Time to begin. You excitedly strolled back to the lab, closing the heavy door behind you. You turned to your desk and began putting away your tools and gadgets as he mirrors your movements, making sure anything dangerous was put away safely. After he finished cleaning up, he walked over to his numerous machines, ones that tracked heart rate, temperature, and electronic signals of a human being, and began prepping multiple pads. More than what he would use for just one of you. You felt your stomach flipping at the thought of him making love to you again. While the last experiment was satisfying, you still longed to feel him. You walked up behind him, rounding his left side as he was fumbling with the wires.
“What are we doing tonight, Dr. Spengler?” you asked, hoping you didn’t sound too eager to get started.
“Stamina,” he answered simply.
You almost asked him to elaborate, but knew he didn’t have to. That one word translated in your head to: he’s going to fuck you all night. “Ah,” you mused in response, waiting for instruction.
He organized the wires before removing his sweater vest, which you took as your cue to undress as well. He turned to face you as he removed his slacks, stopping short of taking his briefs off as he watched you. You slowly removed your panties, watching his eyes study your every move as he followed your actions. He adjusted his glasses and took his clothing to set it on the desk, then took yours and did the same. He cleared his throat, a bit nervous but ready as he’d ever be. Neither of you was aroused enough to immediately go at it, and you knew how much Egon loved to tease you. This was going to be a long, salacious night. He beckoned you closer until you both practically stood toe-to-toe, his hand reaching for one of the sticky pads to place on your chest. He handed you another one, and you mirrored the position of yours, placing it on his chest. After you both were hooked up to the multitude of wires, Egon brushed your hair behind your ear, deciding to give you a kiss on the forehead. He stepped away from you and leaned down to grab a few things, what looked like bottles and some snacks to you. He sat the items on the desk next to your clothes, and you took in the laundry list of the supplies he had: a legal pad, pens, Cheez-Its, water bottles, Twinkies, a bullet vibrator, and water-based lube. A pang went to your cunt just imagining how tonight would go. When he saw your face, lost in thought with a somewhat breathy smile, he exhaled with a slight chuckle.
“Everything okay, Y/N?”
You were shaken from your fantasies and met instead with his dreamy gaze. “Oh, uh, yes. I’m fine, just lost for a moment.”
“Are you up for this? I’m prepared to go as long as I can. I want to document orgasms, facial expressions, and perform arousing actions that people do within mating rituals.” He spoke technically, but you could tell he was nervous. Maybe he wants to impress you. “Hopefully, these machines will make tracking heart rate and temperature easier. There will be a lot of data to sift through.”
“I’m more than ready, Egon,” you purred, a flourish of warmth bursting in your chest.
He took a step toward you, looking down at you with a gaze that was tender, but behind held lust and mystery. He was still an enigma to you at times. Perhaps you’d learn something about him through this tonight. You heard the machines begin their recordings, needles twitching and paper moving steadily. Your heart soared as you stood on your tiptoes to kiss him, and he leaned in to meet your lips, both of you igniting a hunger for the other. Your hands rested on his bare chest as his snuck down to rest on your soft hips. His slender fingers tickled you and you smiled into the kiss in response. You separated from his face, your eyes fluttering open to see him reeling from the passion of that connection. Watching mating rituals, he realized, was nothing compared to actually performing them. His eyes slowly opened to see you looking right back at him, face flushed, presumably from the beginnings of arousal.
“Should we move to the gurney?” he asked, feeling his heartbeat in his throat.
You nodded, taking his hand and taking a few steps to the gurney, the back still sat up at an angle. “Do you want it flat?”
“That would be best, I think,” he responded, using the mechanics of the adjustable bed to lay it down flat. He grabbed a pillow from underneath the bed and put it where your head would rest.
You got onto the soft cushion, the table beneath you solid and unmoving. The gurney was wide enough for two people, and you took a moment to sit cross legged as Egon joined you, sitting on his knees. You felt your thighs tighten beneath you as he leaned in to kiss your neck. His lips were gentle and feather-like against the erogenous skin of your neck, and you tilted your head to the side to give him more access. This gave him the impression that he was doing something you enjoyed, and tried to conjure the other parts that were sensitive like this that he had read about from his books. His hands moved from his thighs to yours, rubbing circles, moving from the tops of your thighs to the insides. He was close enough to feel the heat radiating from your core, which made his length twitch. While he was kissing and sucking on your neck, your hands reached for him, fingers dancing along his thighs and hips, feeling every ridge of muscle or bone under his skin that you could. You felt his chest, the smooth skin was soft, and increasingly warm against the pads of your fingers. You moaned at a nip he gave you against your pulse point, feeling the curling of his lips in a smile of satisfaction.
“You seem to like a bit of roughness,” he mumbled, pulling away from your neck to give you a full-on passionate kiss, his tongue battling with yours.
You only fought for a few seconds before you allowed him to explore your mouth, breaking only to breathe. Your hand found its way to his half-hard member, giving him a few light strokes, beckoning moans that came from deep within his chest. “And you seem to like being teased,” you retorted, leaning forward and moving to sit on your knees.
You used your free hand to lay him down, gently pushing on his sternum until his back met the cushion of the gurney, his head resting on the pillow. You settled between his legs, pushing them open to see every part of him, his testes clearly engorged. You leaned in to lick a stripe up his member, the throbbing feeling increasing in intensity when you wrapped your lips around him. He hummed, encouraging you to keep going. You worked your magic on him, feeling his erection grow more firm as you went, your hands caressing his thighs and balls. The sounds from him were erotic enough to make your cunt produce more and more slick, and the taste of his precum was savory as you hollowed out your cheeks. He reached a hand down to touch your shoulder, interrupting your movements as you released him, holding the base of his penis that was now fully erect.
“I don’t want to orgasm yet,” he huffed, his hungry eyes gripping yours. “I want to see your face as I pleasure you.”
Your cheeks turned red. The bluntness of his words and the impending pleasuring from him would always be a combination your core would long for. “Okay. Where do you want me?”
“Take my place,” he grunted, sitting up so you could lay where he had been. “I’ll be using the bullet toy to help me. It’s hard to see your face if my face is stuck between your legs.”
As you laid down, he got off the bed and grabbed the bullet vibrator, a pen, and his notepad. Once he’d rejoined you, he sat the notepad beside you on the gurney, making sure it was flat and on the side of his dominant hand. He put the pen on top and ensured it wouldn’t roll away in case he needed to hastily take notes. He set the vibrator down, wanting to start slow and use his hands. After all, he was a more hands-on type of scientist. He used his hands to hold your knees, spreading them apart to give him a full view of your glistening cunt. He studied it, his eyes seeming to trace every curve and fold, maybe he was even taking mental pictures and labeling you like a life-size biology textbook diagram. He didn’t show it, but he felt his salivary glands twinge as his mouth watered, making him lick his lips when he realized how dry they were. You waited with bated breath for him to touch you, his hands sliding down your thighs until they got to your clit. His writing hand quickly jotted notes as the other hand opened your labia, wracking your body with a shudder from the cold of the room hitting your relatively hot womanhood.
“Is it okay to touch you? Remember I’m pushing limits. You have to let me know when you’ve had enough,” he warned, his eyes darted to the vibrator that was a few inches away from your body.
“Yes, please,” you whined. “Please, Egon. Touch me anywhere.”
His hand wrote another note, probably something about craving touch and how his teasing was making you more aroused. His hand used the thumb and his middle finger to hold you open, his index finger placing pressure on your swollen clitoris. You hummed in response, urging him to continue. He began rubbing slow, agonizingly slow circles around your nub, earning a buck from your hips. He took that as a sign and picked up speed, now causing you to moan outwardly. He took notes on how slick your natural lubrication was, how it felt so viscous on his fingers, making them easily slip inside you. Between a cry and moan, you felt him quickly dip his middle finger into your vagina, down to the knuckle. Feeling him inside you like this was so bawdy compared to him just plain fucking you. He curled his finger, brushing a different texture inside that was odd compared to the slick and smooth surface of your walls. When he did this, you gasped, your hands kneading your breasts.
“Please Egon, I need more,” you whimpered, groaning as he picked up speed with his finger.
He decided to give you what you wanted, abandoning his physical notes for the time being to focus on your pleasure. He decided he would need to focus on every detail and take mental notes as he watched. He added a finger, pumping you at a good speed, curling them every now and again. His now free hand grabbed the bullet vibrator, switching it on to the first setting. He looked from your cunt to your face, your brows now furrowed as you lost yourself on his fingers, and when the bullet touched your clit, you howled in pleasure. Your hands now gripped the gurney’s fabric, your head thrown back as the stimulation built that same warmth within your belly, feeling like he was lighting a pleasurable fire on your groin.
“Yeah, yeah, yes,” you breathed, humming as your toes curled.
Egon could tell you were close, your muscles beginning to tense up as the plateau was reaching the cusp of your orgasm. He was ready this time as he reached stupidly fast speeds with his fingers, brushing your g-spot and stimulating your bundle of nerves in perfect harmony. It didn’t take long for your orgasm to hit you, your whole body tensing and writhing under him, covered in a sheen of sweat. The intensity of the orgasm and dual stimulation caused you to release female ejaculate again, coating his hands and his stomach. It was clear and warm, and when he stopped all stimulation to your groin, he noticed how much more friction he could feel with your cum on his hand, his fingers feeling somewhat more rough. Your chest heaved as your hands ran along your tummy, the electric feeling slowly subsiding. Egon watched every movement, moving his fingers that were covered in your juices to his mouth as his other hand turned off the bullet vibe and began furiously writing notes before he forgot what he witnessed.
After you came down from your high, your eyes opened and met his. You sat up, your legs on either side of him now. He felt a smirk form on his lips before he leaned in to hungrily kiss you, one after another. Your hands cupped his face, his hands brushing your forearms as the embrace grew warmer. You wanted him. He wanted you, over and over; he longed to see you lost in pleasure like that. He moved his hips closer to yours, his length now grazing the lips of your pussy, the slick coating the underside of him. You begged him softly to take you, whispering dirty talk, your arms now around his neck as he moved forward, sliding his cock inside you. You were still somewhat sensitive from the previous orgasm, but he didn’t hesitate to firmly thrust into you, hitting your cervix and causing your walls to hug him tightly. He growled in his throat at your walls moving around him, the slick from your cunt dripping and coating his testes as they hit your ass with each pump.
“Your vaginal walls are reacting to me,” he groaned as you held onto him. He laid you back, snapping his hips into you.
“You feel so good, Egon,” you whined as you wrapped your legs around his hips to keep him close. “You stretch me so good, I’m already gonna cum again.”
“Already? I must be stimulating you very well,” he huffed, a proud grin forming on his face.
He picked up the pace slightly, and the angle he was moving at, the head of his cock kept brushing your g-spot over and over. You felt the white hot wave of pleasure hit you again as your walls clenched around him. He couldn’t take it anymore, and the pressure from you caused his testicles to seize up as he released inside you with a few more thrusts. Both of you were panting as he pulled from you and watched as his seed spilled out of you before you let go of him and let your body go limp on the gurney. He turned his attention from you to his notepad and pen, messily jotting down notes of the movement of your vaginal canal, the words you had said that brought him pleasure, and the number and quickness of your orgasms. He looked at the clock on the wall, then continued his notes before he finished and put the pen down. He got up to grab you each a water bottle before rejoining you. He took a sip and set it down with his notepad before laying on his side next to you. You turned to face him, your head laying on the softness of your bicep tucked beneath your head, and his eyes scanned yours before his hand rested on your hip.
“I’m ready to go again,” you said, your hand snaking down to stroke his half-hard length. “I could never have enough of your cock.”
The dirty words were a surprise to yourself, so unfettered, they just stumbled out of your mouth. But Egon responded to them, and you felt his length move in your hand. “I want you again. The look on your face when you orgasm is fascinating.”
“You seem to like it when I talk dirty, Egon. You’re not used to hearing words like that are you?”
“No, I…I’m unfamiliar. Perhaps the taboo of the words is exciting to me,” he said, hissing as your thumb swirled precum from the tip of him and you stroked his nearly fully erect member.
“Well I guess I’ll be the one to show you how to speak dirty, hm?” you purred as he hummed at your touch.
His head tilted back just enough for you to plant your lips on his neck, sucking hard to leave a mark. His hand glided from your hip to your core, a finger moving past your labia to brush your clit harshly. Your hips rolled into his touch and you sat up, forcing him to lie on his back, your legs straddling his pelvis. His hands retracted and landed on your thighs, feeling your hips gyrate, your slick cunt gliding along his length, teasing you both. Your clit would hit the lip of the glans of his cock and cause friction, before you couldn’t take it anymore and lifted your hips. You grabbed the base of him and sank down in one swift movement, beckoning a gasp and grunt from his throat. You leaned forward, moving your hips as you buried your face in his neck, the earthy scent of his was intoxicating you, your hands balled into fists against his chest. He met your moves, thrusting up into you at the same speed. He moaned with each thrust as you whimpered into his neck, his hands firmly on your back, rubbing circles on your shoulder blades.
“I want you to fill me up, Egon,” you mumbled into his neck, hoping he wouldn’t hear. And under your breath, drowned out by the sound of skin slapping and moaning, you mumbled, “I love you.”
He kept going, not having registered your words and losing himself in the high of his incoming orgasm. His nose nuzzled your shoulder, his lips opening for him to graze his teeth on the soft flesh, causing a shudder to shake your spine. You sat back up, using your thighs to raise and lower yourself on his length, each time burying him to the hilt. Each thrust was driving him mad, his eyes entranced by your breasts bouncing rhythmically.
“Shit,” he huffed, meeting you for each thrust. “I’m going to—“
He couldn't even finish his sentence before he felt his muscles tense up as he again covered your walls with his hot seed. You continued using him to chase your own orgasm, each time you buried him inside you, the ache of his length hit you just right. Your clit hit his pelvis with each bounce until you came undone again, your release coating his cock again as you slowly stopped. You let his cum leak out of you, keeping his length warm within you, as you leaned in to him and kissed his chest. He breathed in the scent of you, and the thick, warm scent of sex. He grinned at the gesture you made, his hand cupped your face, causing you to look up at him.
“You okay?” you asked, an airy chuckle leaving your lips.
“Yes,” he smiled, something soft that you hadn’t seen before, but it made your stomach flutter. “I want to kiss you, Y/N.”
You were a bit shocked at him being so forward, but you weren’t ever going to say no if Dr. Spengler wanted a kiss. “All you have to do is ask.”
You leaned forward to capture his lips, tasting a mix of salty sweat and sweet cream, most likely from a Twinkie from earlier. He moaned into your mouth, his hands running along your sides as your own found his fluffy hair and stroked it. He broke the kiss gently, his eyes fluttering open, touching his nose to yours. You’d never witnessed this part of Egon before. It only made those same feelings you harbored creep up to the surface. He wouldn’t say it, but each time he looked into your eyes, he felt his walls fall. He knew what was happening, but he couldn’t let himself be overtaken by emotion. This experiment was for science, not for cultivating a relationship. He chanted that mantra to himself as he breathed in your scent.
You pulled away reluctantly. “You taste just like the Twinkies you eat,” you sighed, your cheeks flushed.
“You taste like cinnamon. Do you put it in your coffee?” he asked.
“You could tell that from just kissing me?” you asked rhetorically before responding, “I love cinnamon coffee.”
“Then I know what to keep in the lab for your coffee.”
...
After a break, lightly snacking and rehydrating, you climbed onto the gurney, Egon behind you. You had both been doing heavy petting after the snacking, touching each other’s genitals and erogenous areas. Egon was ready to go again within the hour. He saw you on your hands and knees and wanted to just take you. Before you could turn to lay on your back, you felt his warm hands grasp your hips, a little more rough than usual. You had a feeling this was going to be fun, and completely submitted to what he wanted. He leaned over your back, feeling the heat waft off his chest as he nipped your shoulder. He growled, taking his dick in his hand and teasing your entrance with his tip. You tried to push against him and he pulled back, his length now sliding along your slit.
“Please, Egon,” you mumbled, your hands grabbing the pillow and putting it under your head. “I want you.”
A shudder tickled his spinal cord, a surge of power and desire. He wondered for a moment what the data would say about that sensation, then shook his head to redirect his attention to your wet cunt, begging for attention. He leaned over you again, his mouth now inches from your ear. “I want you, too.”
His tone was dark and gravelly, and it was almost so unbelievable that you felt like laughing. Until he sank his entire cock into you, drawing a long groan from your chest. He hesitated only a second before fucking you at a rapid pace, clearly chasing his high within your walls. His hips slapped yours, until he adjusted his position to lay on your back as he somehow reached deeper than he had before. He sucked bruises into your tender shoulders, all the while the stimulation from him was overwhelming; his member hit your cervix and caressed your walls as your clit was slapped with each thrust by his testes.
“Fuck, oh my god, E-Egie,” you choked, repeating the nickname you had heard Ray call him as a form of endearment through this rough love making. “I’m already gonna cum again!”
“Cum again, Y/N, I need to feel it again,” he grunted.
God you were melting at this attitude. Was he sincere or was this just a sub-experiment? Was he just trying new things out to see how you’d respond? You weren’t sure if you cared either way, because it killed you to hear him talk naughty. Not long after he had said that, the warmth of your orgasm shocked you again, groaning as you clenched around him. He couldn’t hold back and came inside you yet again, the feeling never getting old. You loved the feeling of him, and hoped to whatever god that you would never have to live without him. Your heart swelled with passion as he collapsed on top of you, the both of you panting. You were both coming down from the high before realizing how raw you both were.
“I think…I think I’m spent,” he huffed, nuzzling your shoulder lazily.
The warmth of him against your back was comforting after feeling so full. You didn’t want this to end, but you couldn’t block out the stinging sensation in your groin. “I think I am, too.”
“These results should be interesting,” he mumbled. “Different variables in one night…”
He sounded lethargic. You slowly turned to your side, causing him to fall next to you on the gurney. This startled him somewhat, and he muttered an apology under his breath as he pulled his length from you. The emptiness was almost foreign to you, since he had been inside you most of the night. Your gaze was hazy, but you managed to get a time from the hands on it: 4:00 AM. You’d both spent five hours total, even though it all went by so fast, it felt like minutes. You turned over and looked at Egon, now lightly dozing on the gurney, glasses still intact, an arm tucked under his head. You didn’t want to leave him here alone, but you wondered if you both could get away with staying the night here. It wasn’t ideal, but you were so exhausted, you were sure you couldn’t get home.
You carefully got off the gurney to approach the lab door, making sure it was closed and locked. The last thing you wanted was the other guys finding you both asleep, let alone naked. You grabbed your lab coat and his from your clothes, covering him up as you studied his face. You didn’t realize how tense he looked all the time, because for once, his brows weren’t knitted together. They were lifted, as if he was surprised he was so relaxed, making you exhale in amusement. You thanked him silently that he kept the lab so warm, so you wouldn’t have to fear freezing to death. You rejoined him on the gurney, covering yourself with your own lab coat, snuggling into his chest. You listened to hear his heartbeat which was much more clear than when you’d heard it through his sweater vest. Feeling his warmth near you made you feel like a cat, wanting to curl up in his arms and never let go. But you knew he’d wake up at some point, probably before you, so you tried to not look too desperate for his embrace when you fell asleep.
...
Egon awoke two hours later, his watch alarm going off, startling him, but the noise wasn’t enough to wake you. He laid there as he recounted the events that lead him here, next to you. He studied your sleeping face, the complete relaxed state of your muscles, curled in a fetal position next to him. He wasn’t a man of outward emotion, but each session seemed to make it more difficult to suppress them. Before he got up from the gurney, he snuck a kiss to your cheek, a tender but meaningful one. He was sure you weren’t awake, and gently slid off the gurney to get dressed. After he had done so, he moved towards your breathing form again before whispering something to you.
“I…love you.”
