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queenshelby · 10 months

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Chemical Reactions (P. 9)

Pairing: Cillian Murphy as J Robert Oppenheimer x Student Reader

Warning: Age-Gap, Infidelity, Smut

Words: 2,678

Note: The fic is spoiler free and my own fantasy and imagination. It is not historically and scientifically accurate.

Previous Parts: 1; 2; 3; 4; 5; 6; 7; 8

THIS PART IS DIALOGUE HEAVY AND PART EIGHT WILL BE SIMILAR, BOTH PARTS ARE NECESSARY THOUGH TO EXPAND THE STORY.

Two weeks later...

Just as General Groves had anticipated, the following week, you made your way to Robert’s final lecture at Berkley which was held in front of an audience of about fifty students.

The lecture itself was not relevant to your thesis but you knew that you had to see him, in an aim to clear things up.

You managed to get a letter to him through Professor Lawrance in the past few days, hidden within your thesis papers and, even though Lawrance told you as well that Robert was no longer your supervisor, you insisted for Robert to read it, seeing that her was the expert in this field.

After you begged, of course, Lawrance agreed to provide the paper to his colleague and, whilst you hoped that Robert would respond to your letter, he did not. At least not until now which is when you sat inside the lecture hall and he handed out some papers to everyone.

“I suggest that you read page two carefully Miss Y/LN” he told you quietly when, finally, he approached you amongst the other students and, of course, you knew what he meant by that and skipped right ahead to the page he mentioned.

“Thank you doctor” you told him as he moved on and handed out the remaining papers to the other students while, at the back of the hall, you could see two men watching the lecture and Robert’s interactions with you. They were spies for sure and you knew that, when hopefully getting to see him, you had to do so without being seen yourself.

Robert though played them well. He was nothing but professional towards you and the note he had hidden on page two was not noticeable to anyone but you.

“Meet me at Lawrance’s office. 3 o’clock. We need to talk” it said and, of course, you already knew what this was going to be about. He was going to tell you exactly what General Groves had already told you, namely that he could and would not see you again after today.

He would also tell you that your security clearance had been denied and that, at least for now, you had to forget about him.

Whether you could do that or not, however, was something that you had already thought about for the past week or so, ever since Lesley Groves’ conversation with you and you came to the conclusion that you could not.

Not after the letters he had sent you, telling you how much he desired you and enjoyed your company, and not after the passionate night you shared.

Of course, love was not something you believed in even though Robert referred to it on two occasions now and love was not yet what you felt for him. But what you felt was something more than just some intellectual and physical attraction. It was desire in its purest and most primal form which had developed into an addiction of some sort and this addiction needed to be fuelled in order for you to function mentally and physically. You thus decided that you needed Robert in your life and this was going to be a challenge.

You were crazy for him and, clearly, he was crazy for you as well, going by what he had written to you and it were those letters which went through your mind just as Robert made his way to the lectern and began his lecture on naturally occurring atoms.

“Concentrate Y/N!” you then said to yourself as Robert had started reading for the lesson and just as he spoke so passionately about physics, you took your pencil and slowly ran it down your neck and then to your collarbone, subtly squirming like you enjoyed the feel, though your face was serious. There was something extremely sexy and desirable about this man talking about atoms and your mind again wandered to the night you shared.

You could feel his eyes on you, glancing at you, as he went through some chemical reactions and him talking like this sent goosebumps all over your skin. You enjoyed the feeling and brought the pencil back up, now running across the seam of your lips in purposeful absentmindedness until he lost his train of thought and paused before picking up on his speech again.

This is when you decided to tune it down. You did not want Robert to be thrown off guard and knew that, after class, you would finally be able to catch a moment with him after not having seen him for almost four weeks.

***

At 3 o’clock and after shaking off the two men, who had been following you, by sneaking out of the lavatory window, you made your way too Dr Lawrance’s office which, unsurprisingly, was unlocked that day.

Thus, you made your way inside without knocking which happened to startle Robert who had already been waiting for you.

“Jesus” he cursed, afraid that it was one of General Groves’ personnel who had followed him or even you to Lawrance’s office. He was clearly paranoid and concerned about meeting you there, but he knew that he had to see you regardless.

“Has someone followed you here?” he asked nonetheless and you shook your head while, finally, approaching him and, in a haste, pressing your lips onto his.

“I missed you” you moaned against his lips while Robert kissed you passionately, only ever allowing you to pull away in order to breathe, which is something that continued for at least five minutes until Robert took a step back.

“We need to talk” Robert then said after your lips drifted apart and you slowly looked up at him with wide open eyes and a parted mouth before, wordlessly, reaching beneath your skirt and taking off your panties.

“We do, but that has to wait!” you determined, causing Robert to gasp with suprise and shake his head.

“We can’t Y/N…” Robert began to say but, as soon as your lust filled eyes met his, his grip on your waist tightened and he stopped talking.

“I suppose we can…” Robert then corrected himself, stammering out the words and you could feel his gaze boring into you and, just as you felt as though your lust for this man couldn’t have been any greater, he pressed his lips onto yours again for another passionate kiss.

As you were kissing, you slid your hands up his thighs and reached for the zipper of his pants. You pulled it down, undid the button and belt and then his briefs-bound cock pushed out of the opening.

“On the desk” Robert simply groaned as, eventually, you reached into his briefs and grabbed him, pulling his erection free. The gurgling noise he made at that meant that he was absolutely focused on what you were doing to him, so you let yourself lift your eyes and take in his flushed face, staring at your hand like it was God's salvation for his mortal soul.

“Not yet” you teased before licking your lips and descending on him, causing Robert to swear.

“Fuck” he cursed as, without warning, you engulfed him completely.

The feel of his length in your mouth and the weight of it was almost as good as the punched-out moan he made as you worked your tongue up and down his shaft for a moment before taking him in all the way again until he bottomed out.

Then you pulled back and took him in again, building up to a brutal pace.

Robert was grunting with every thrust into your mouth. He could not hold back as you sucked and swirled your tongue around the head, making sure he would never forget this moment with you, especially if this was going to be the last time for you both.

“Stop. No more” Robert eventually groaned before pulling slightly against your hair and, just as he did, you removed your lips from his pulsing hard shaft and stood up.

“I need to taste you and I need to be inside of you. It has been weeks” he then told you while pulling you over towards the large cedar study desk which, clearly, belonged to Dr Lawrance.

“Then have me Robert” you told him as he stared at your body intently. “Fuck me like you own me” you then demanded and Robert took a handful of your hair and pulled your head back playfully so that you would stare up at him. Your eyes went wide for a moment as you let out a little gasp before returning to the lidded hungry stare you had before.

Robert then leaned forward and kissed you hard on the mouth and your mouth tasted sweet and your moans against his mouth were whorish and wanton. He drank from your mouth and all thoughts of his marriage and the project slipped far into the recess of his will as he lifted you up on to the desk.

He then kissed down further, along your long neck and just above the v-line of your blouse before he kneeled in front of you and you wrapped your fingers in his hair.

As he was caressing your clothed body, you popped open some of the buttons on your blouse, thus allowing Robert to push it down and thereby exposing your breasts. He cupped the right one with his hand, gently twisting the nipple between thumb and forefinger. It instantly grew hard to his touch.

Robert then spent a moment or two with his mouth on each breast. Tasting every inch of your flesh, before he slipped lower and the heady aroma of your open sex filled his nostrils so that he was possessed by a strong desire to taste you.

As he lowered himself further, he took hold of your legs behind each knee and spread them apart as he pushed your legs up and your skirt back so that it was curled up against your stomach. Robert then kissed your left thigh and looked up at you. Your cheeks were flush, mouth parted, eyes unfocused but intent.

"You must be quiet" he managed say and you faintly nodded before he lowered his mouth onto your sex. You tried your best to muffle your squeal, but as his tongue worked its way into you, more moans and cries escaped your lips.

You tasted as sweet as usual, and he devoured you. He worked his tongue as deep into you as he could before wiggling it back and forth up over the length of your slit, and then sucking gently on your engorged clit.

You bucked and squirmed in response to his ministrations, but Robert held you down as his mouth locked onto you. Your fingers wrapped into his hair and you grinded yourself against his tongue as best you could.

You began a long slow whine that slowly built in intensity, punctuated by quick movements of your hips as you pressed your mound against his mouth. It almost sounded as though you were crying, and for a moment his concentration broke, and he was tempted to stop, but your grip on the back of his head told him otherwise.

“Don’t you dare stop!” you moaned just before Robert flicked his tongue quickly over your clit and your body began to shudder. Your whine became a steady cry, followed by convulsions, and finally a great big gasp, as your body went slack.

"Oh god” you then panted before pushing his head away, unable to take anymore. Your hair was mussed and your makeup had smeared a bit.

“Yes, my love?” Robert teased before standing straight and, of course, you rolled your eyes at his joke just like you usually would.

“You are so sure of yourself, aren’t you?” you teased as Robert finally brought you to your feet.

“Yes” he answered with a grin before kissing you again to let you taste yourself on his lips.

“Now turn around and lean against my desk” Robert then demanded before he spun your small frame around and bent you over his colleague’s desk.

“That’s Dr Lawrance’s desk, not yours” you pointed out before Robert stood himself behind you. You were limp and behaving more like a rag doll than an active participant, but after eating you to orgasm, Robert knew that he had to have you. He had been aching for you for weeks.

“I suppose it is Lawrance’s desk, but I am sure he would not mind us using it” Robert then said which made you giggle.

“Very well then professor, I am all yours” you teased as Robert flipped your skirt onto your back and reached down between your legs, feeling that you were still slick and ready for him.

“You are indeed” Robert groaned before he lined himself up with your entrance without pushing into you just yet.

“Don’t tease” you demanded as you lowered your head to the desk and pushed back a little against his teasing cock.

“Please Robert” you then begged and, with that, he finally pressed into you slowly.

“I missed this a lot’ Robert groaned again as, finally, he took hold of your hips and pressed harder, to which you whimpered and moaned in pleasure.

“So did I” you gasped as he filled you.

"You are so very tight” he then told you as your channel gripped his length like a firm velvet fist. He could feel every inch inside you and, slowly, he began to rock his hips, small movements at first, then bigger ones, until he was fucking you in earnest.

You mewled as his member opened you and made your channel adjust to his size. He held your hips and pressed hard against you as you grunted with each thrust while, eventually, his cock was swelling.

"Oh god" you repeated as he fucked you in a steady rhythm until he briefly pulled out of you and turned you around.

“I missed having you inside me” you told Robert as you sat up on Lawrance’s desk again and spread your legs wide.

“I need you Y/N. I need you so fucking much” Robert said as he stepped in between your legs and re-entered you while you propped yourself up on your elbows and wrapped your long legs around his hips.

"I need you too, Robert. God, fuck me, make me yours” you moaned incoherently while your eyes were desperate and intently locked onto his. He leaned forward and kissed you in response, pressing his tongue into your mouth while you moaned against his lips, over and over again.

His own orgasm was building, but he did not want to stop just yet. Thus, his thrusts became more insistent and, with that, he drew you closer and closer towards climax as well.

“I am close” you said as if you were reading his mind while you leaned back and looked at Robert through lidded eyes.

“So am I” Robert told you as he felt your legs lock tighter around him and, just as you decided to hold on to for dear life, he pressed himself into you hard.

“Oh god, yes! That’s it” you almost screamed as, all so suddenly, you climaxed again. Your orgasm hit you like freight train and just as your walls began to convulse around his shaft, he exploded deep within you, filling you with his seed. He was thrusting hard with each spurt, and you wrapped your arms around him as it was his turn for his body to shake.

His orgasm was intense and, within seconds, his cum seeped from your channel and down his shaft, eliciting a final groan from Robert when he took a glimpse at where you were still connected.

“We really do need to talk” Robert then eventually said as he pulled out of you and felt the tension loosen inside of him as he momentarily closed his eyes and relaxed.

“Yes we do and now I can. I just needed to get this out of my system first before I could put together some logically thoughts” you said before reaching for Robert’s handkerchief and using it to clean yourself up.

“Do you mind if I keep that?” you then asked, causing Robert to chuckle.

“Not at all” he then said, pulling up his briefs and pants, before he leaned over and kissed your forehead. “Your security clearance…” he then began to say but you interrupted him.

“I know, General Groves came to interview me” you told Robert while adjusting your skirt. “He told me that you were instructed not see me again, but here you are, engaging in some intimate relations with me” you chuckled, still out of breath.

“General Groves should use his words more wisely as he did not say that I cannot see you again. He simply said that I must not engage or liaise with communists and, since you are not a communist, I do not see an issue with seeking you discreetly” Robert then pointed out while caressing your face.

“Discreetly, huh?” you chuckled before asking Robert what he thought was happening next.

“What do you mean?” he asked gently while looking into your eyes.

“With us, Robert. Where do we go from here” you wanted to know.

“Well, I will continue to try my luck and convince Groves to get you clearance for the project and, in the meantime, I will come here and visit you whenever I can” he explained.

“Robert, the General has already read your two letters to me. So, how do you expect to make contact without them noticing?” you asked, seeing that, no doubt, Robert was being watched.

“I will find a way my love. I promise” he promised you while cupping your face with both of his hands.

“Wouldn’t it be easier just to end it?” you argued, but Robert shook his head.

“I can’t do that” he told you.

“Why?” you queried, seeing that seeing you would be risky.

“Because I need you in my life Y/N” he then determined and a surprisingly warm and fluttering feeling crept up inside of you. It was a feeling that was unfamiliar to you and you could not describe it.

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