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Will Marty Always Return Whenever He Leaves?

Summary:

Doc's thinking about it too much... but how could he not? It's Marty we're talking about, of course that boy remains on his mind... even when he's not around.
Emmett could get used to the idea of waiting for Marty, he knows he could.

 

** THE TIME GOD 一 Bonus 3 **

Notes:

Context :The beginning of this is set when Marty returns from his first trip to 1931 after leaving 1955 Doc for two weeks. (the gap between CH4 and CH5 but from Doc's POV.) The end is right before CH7 'Becoming The Time God' Part 1.

DISCLAIMER : I spent a long time arguing with myself about this bonus. All because I couldn't write it the way I wanted to, it felt messy, scattered and empty. But then I realized maybe it could just be whimsical Doc and Marty things. Something soft and sweet that didn't need a heavy plot like THE TIME GOD, but filling the plot holes within it with some lightness. I began this back in June, this is finally done, I hope you'll enjoy it.

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“Marty?” Doc called out to him from somewhere in the mansion. He’d noticed that the teenager hadn't been around for a while, and even though it was late at night, the last time they’d spoken, Marty had been lying in the grass watching the stars.

Where did he go?

“Marty!” he called out again, hoping he would get an answer this time.

Silence.

It felt strange to be surrounded by complete silence now. Since Marty arrived a few weeks ago, the house hadn't been as quiet as it had been for years.

Emmett sighed and massaged his forehead. “Where did the kid go?”

He was getting used to having the boy by his side. His days were being lit up by that young energy floating around.

Copernicus barked and looked up at his master. He had sensed the change, too.

"I know, boy, I'm looking for him too. I think he's left.”

No, Emmett was certain Marty left. He found a way.

The dog barked again and Doc shushed him; he was already annoyed by the whole situation. But the small dog kept barking and jumping around the spare shoes that Doc had bought for Marty and which were resting next to the door. “Quiet, Copernicus! It won't help if you cry about it.”

Marty suddenly vanished, leaving Copernicus distressed because he could no longer smell him. Doc understood the problem.

There was nothing he could do about it, he had no idea where一 no… when the teen could be now. Was he safe? Did he go back to 1885? Did he actually make it to Tomorrow?

Emmett exhaled shakily. What if Marty had ended up in 45 BC? He had no idea how to control his time-travel ability. How would he manage to go where he wanted to when he finally unlocked it?

Copernicus hadn’t stopped barking, and Emmett was growing increasingly concerned for him. But all he could do now was wait and hope that Marty was all right.

He grabbed the dog and tried to calm them both down. “It’s alright, boy. Marty’s going to come back,” he said, stroking the pet’s fur and kissing its little head. "He is... right?" This time, he was asking himself. He wasn’t even sure that the teenager would find a way back, wherever he had landed.

Only time would tell. But not knowing was terrifying, especially when it involved Emmett’s own future and the life of a boy he had met a couple of months ago, as well as years ago.

Time travel was one crazy thing.

The dog had stopped barking and was now snuggling against the man’s chest, seeking comfort. Doc stood there with Copernicus in his arms, holding him close. He stared at the floor in front of his feet and listened to the distant ticking of the clock in the living room.

How long would he have to wait now?


8.00AM.

 

The alarm clock woke him up. Last time it rang一 yesterday 一Marty knocked it off and put a pillow on his head, which made Doc laugh. But this morning, as on some mornings, the teenager wasn’t next to him. This time, however, Doc felt a squeeze in his chest. This morning, Marty wasn’t with him at all.

He let the alarm ring until it started to annoy him. He realized that he would have breakfast alone today.

Under different circumstances, it wouldn't have mattered at all — it never did before. But the arrival of that bright, clever, lovely boy had changed everything, even if he refused to admit it.

He hated how much it reminded him of the day he lost his parents. As if nothing had happened, they all vanished after some futile conversations, without saying goodbye or giving him time to adapt to the sudden realization that they were about to leave him.

Things had been easier when Marty left with his counterpart and the time machine on December 14th. Knowing they had left made it easier.

It was painful to not know if Marty would return at all.

Maybe Marty travelled to the present day, and he'll be back by tonight.

Emmett stopped the alarm clock. 

“I need a distraction,” he said, getting up. He couldn’t afford to mourn the loss of his Future Boy so early on; he had more important things to focus on, such as building the time machine that would bring said Future Boy to his house on November 5th,1955.

He knew he would see him again, but the prospect of waiting 30 years seemed unbearable. It was more unbearable than it had been before.

He wished he could keep him forever. It was so unfair that they had met so late in life.

Emmett put on his bathrobe and a pair of slippers. He didn't bother getting breakfast; he felt too sick to drink anything. He grabbed the first pen he saw on the table and stopped for a moment when he noticed the cup that Marty had used to make tea the previous afternoon. He swallowed the lump in his throat. Doc shook his head and headed out of the mansion and into the lab.

He needed a distraction all day long, if necessary, to help him forget about time and his missing friend.

The days went by, and gradually the 22nd of December became the 31st. Emmett was starting to think that Marty must have returned by now, but perhaps time travel wasn't as precise as he'd thought. Perhaps it wasn't possible to be accurate at all, and you would be dropped off sometime close to the date you requested, but not necessarily at the exact moment.

He lay under the stars as he had last seen Marty do. He hoped to receive a sign and wondered why everyone always left him. And why it always happened when he was sitting here in the estate.

Just like he never saw Michael return一 

Emmett froze. 

He never thought about that Michael before. He wasn’t even sure if he had ever had a friend named Michael. Hell, that was years ago. How had he just remembered it?

Something about his memory felt wrong. It was as if parts of his life were being rewritten, piece by piece, at a specific moment in time and for a brief period.

Who on earth was this Michael?

Emmett tried to remember what the boy looked like, but all he could recall were distant memories of his voice. He sounded oddly similar to Marty. He would have to find out more about this boy.

 

One night, two weeks after he left, Doc was once again hoping that Marty would come back. And he did, like a miracle. That teenage boy ran towards him, hugging him as if he hadn’t seen him for a week. Doc hugged him just as tightly, savoring the moment as if it were his last.

The couple of days ahead weren’t as restful as Marty had hoped, but they managed. The more they worked on it, the better Marty and Emmett began to understand how that chaotic time-travel ability worked.


January 16th, 1956 ; That evening Marty landed back in the town square for a time travel experiment and Doc came to pick him up following a phone call. 

 

“Thank you again. I really didn’t want to walk all the way to Riverside Drive.” Marty thanked his friend.

“It’s all right. I’m glad you made it back today, Marty.” Doc flashed him a grin and focused on the road ahead. “So, you can’t do that at will. You get tired after two travels, right?”

Marty stared at the side of the road, enjoying the last rays of sunlight. 'It seems that way. It’s weird. It's only accurate the first time a day, the rest are messed up. It's a miracle I even made it to this evening and not next week.”

“What about the ability to reverse time?” Doc ventured.

“I can’t control it, and it’s annoying. I don't know how to use it, Doc.”

They stopped at a crossroads where a car opposite had its radio blaring out The Great Pretender by The Platters . Even Emmett didn’t know that song by heart — it had only been released in November — but he noticed Marty singing along to it dreamily while staring out of the window. The song played for as long as the car’s radio could be heard after they left the crossroads.

“Impressive,” he commented, heading for their street, “you weren’t around for 9 months, how did you even remember it?”

“Heard it for years when I was young. Especially when you got it on the jukebox, on top of my dad liking The Platters a lot."

"Of course." Doc was reminded daily that Marty didn’t belong with him here, and that broke his heart every time. He tried to suppress the thought that he would only be able to have Marty by 1985, decades away from now.

He really wanted to help Marty, but the fact that he always came back to him was like fate telling him not to let him go.

Emmett stopped the car on the porch and watched Marty jump out, before the teenager noticed his inner turmoil. "Are you all right, Doc? You sure have been unusually quiet this evening."

The scientist flashed him a comforting smile. 'I'm okay, Marty, thank you. Tired, that’s all.” He removed the key from the ignition and stepped out once he saw that the teenager was satisfied with his answer.

“I’m going to eat something and then go to bed because I'm exhausted一” Marty began, walking up the steps and removing his jacket.

“Right.” Doc replied, following him, not really listening; he was still in his own head.

"一and all this time travel business is really draining!"

Emmett then closed the door behind them and dropped the keys on the nearest surface. He felt like sitting down and staring into space for a while, which he hated. He was a man of action; staying put wasn't his thing at all —it only made him spiral downwards.

Emmett crouched down and untied his shoelaces, listening to the distant melody of Marty’s voice talking about something he couldn’t quite make out over the jumble of thoughts filling his mind.

As he was about to stand up, he felt a hand rest on his shoulder. “What do you think?” the teenager asked, looking down at him with a soft smile. He was conveying something specific, but Doc wasn’t sure if he could decipher that peculiar expression.

Emmett attempted to comprehend the situation without knowing what had been said before. Realizing he couldn’t guess what it could be about, he swallowed and avoided the teen’s blue eyes. “Well, I suppose?”

“You- you suppose?” Marty frowned, confused. “you haven’t even listened to what this was about, did you, Doc?” 

“No, I’m sorry I was… thinking about something else.” He finally got up, pinching the bridge of his nose. “What did you ask me?”

Marty looked away, shaking his head in annoyance, “it’s alright it wasn’t important anyway, I don’t need to bother you with that, you seem busy.” 

“Marty-” Doc grabbed his arm, feeling hurt the teen thought he didn’t care about him, whatever that might be about. “please, tell me, you seemed…” the scientist was looking for a word he wasn’t sure of, instead, he went for, “ ...passionate, about it.” 

“Passionate isn’t the word I would use for it, Doc.” He freed his arm and walked away towards the kitchen. “I’ll eat something and go to sleep. I need to get my days back on track anyway. I went from noon to this evening in the blink of an eye.”

Emmett watched the boy slip away, noticing that he had just made an unfortunate mistake by not giving Marty his full attention at an important moment. But how could he have guessed? He hadn’t been around teenagers for a while, and this one behaved differently to anyone he’d ever met before. Obviously, he was from a time yet to come.

It would have been better if his counterpart was still around to advise him on how to act appropriately around the kid, but Emmett tried his best with the little he knew of their relationship. It just wasn’t always the easiest thing.

Nevertheless, he followed him to the kitchen.

"Can I at least offer you my company? As a gesture of forgiveness?" he ventured, concerned that he might be overstepping the mark.

“Forgiveness- Doc,” Marty dropped the fork he had picked up earlier and turned fully to face his friend. “You don’t have to. It’s all right. You’ve got a lot on your mind. I understand I can be a burden sometimes. You can take a break.”

“You’re never a burden to me, Marty. How dare you say that?”

“Because I drop by and throw your plans out the window every time.” He picked up the fork again and stabbed the leftover potato salad from last night with it. "I come and go and ask for your help because you're the only one who can truly help, Doc. I’m the one who should be sorry for taking up so much of your precious time. We both know you should be doing something other than helping me."

They were staring at each other now. Marty ate quietly while Doc nodded, understanding the situation.

"I know," he replied. "Everything is very confusing with you. It's hard to commit to the idea, Future Boy."

"And I couldn't be more thankful you committed to it," Marty said, getting on his toes and kissing his cheek. “Come on, we both need a good rest, don’t we?”

Emmett had a fond expression on his face. He was thankful that Marty had crossed his path more than once, too.

"We do," he replied, lifting the boy's chin, aiming for his lips this time, "my room?"


January 17th, 1955 ; 8.00AM

 

The alarm clock rang loudly in Emmett’s ears. Once, twice, thrice... and a hand slapped down on it, bringing the sound closer before stopping the mechanism. This made him frown in his half-slumber. Without opening his eyes, he felt the warm skin pressed against him shift and drop the clock nearby onto the bed — you could still hear the ticking fairly clearly.

A voice resonated against his chest, its face snuggling closer to the cotton fabric of his pajamas. It sounded like Marty. “Shhhit, it’s too early, why did it ring…” 

Emmett slowly opened his eyes and brought his hand to the boy's head, stroking his messy hair. “Put it back on the bedside table, Marty. We’re going to knock it over.” He felt the teenager sigh and shift again to grab the clock, then roll over and drop it on the nightstand.

Oh, he knew he would miss that when Marty was gone again.

“Now we sleep.” The boy said, lying back on the scientist and forcing him to rest on his back. This made the scientist chuckle.

“Do you do that with me? Is it a habit of ours to stay in bed longer than necessary?”

“You hate it, Doc.” Marty turned his head to look into the brown eyes above him. “I’m just trying to find more ways to keep you here with me.”

“I see...” His hand now brushed against the smile that crossed the teenager's face. “Am I more compliant now, or will I be in the future?”

“I bet you'd love me to tell you, uh?” Marty said with a smirk.

“I highly doubt this will mess up our timeline if I get to know about it.”

“Hmm, I think it could. Believe me.” Marty concluded, resting his head on Doc’s chest.

“All right, I trust your judgement.”

They sat still and enjoyed each other's company for a while, listening to the ticking of the bedside clock. It was going to be a sunny day; you could see the sun peeking through the room's curtains.

After a while, Marty let out, “Can we have breakfast?” as he felt a finger trailing up and down his back.

Emmett smiled as he recalled how Marty usually woke up in his bed: hungry.

“What’s so funny?” Marty smiled too when he noticed the expression on his friend’s face.

“Nothing. I just like it when you say that.”

“You like when I say a lot of things, Doc.” Propping himself up on his elbows, he remained on top of the man. “Especially when we’re having sex,” he said.

“All right, Future Boy. I see where this is going,” he sighed, his smile never wavering.

“Do you?” Marty had already started playing with a button on Doc’s shirt. “Because I suggested breakfast a minute ago...”

Emmett stopped his hand. “Do you prefer me or a real breakfast?”

“You can be breakfast, I’m not a picky guy.” Marty’s eyes sparkled with mischief. 

“I thought you preferred making love before sleeping?” 

“Hm, nah, that just depends on the mood, Doc.” The teenager undid the buttons on Emmett’s chest again and reached up to kiss his jaw. “I love it when you’re still sleepy. You say crazy things and go hard on me.” Marty deepened the kiss.

Emmett groaned slightly. Those lips sent shivers down his spine. “Not too hard, I hope. I wouldn’t want to hurt you.”

“Juuust the right amount of hard, Doc, don’t worry.” With their noses almost touching, Marty bit his lip as he reached the last button of the shirt, waiting for the man to tell him to keep going. Then he went on to say in a hushed tone, "Besides, sometimes I only have you for myself in the morning, so I make the most of it before we part for the day."

A hand covered Marty's, gently grabbing his wrist for a moment before sliding up his forearm and moving to his hip. The man pulled Marty closer for a sudden kiss.

The teenager was about to deepen the kiss when Doc broke it off. 'I'm in favour of a proper breakfast, Marty. We can save this for dinner tonight. I'd prefer it.”

“Really, you’re stopping me now? That’s rude, Doc,” Marty scoffed, rolling off him.

“Sorry, but I considered the pros and cons, and I can’t start my day without having something to drink first.”

“Aw, come on, you can’t just leave me hanging there.”

"You have hands, don't you?" The scientist ruffled his hair in response and shot him a soft smile before standing up.

Marty sighed and rolled his eyes. "I wanted yours."

"Patience is key, Future Boy."

“Right.” Marty stared defeatedly at the buttons on Doc’s shirt slowly getting closed back. “Guess I can wait.” 

“You will.” Emmett nodded. “We've got time. Breakfast?”

“If that’s the last option, yeah. Breakfast.” 

 

If he was honest with himself, it was the worst thing Marty could hear: 'we have time'. Yeah, to hell they had.

He sat at the table facing Doc, overwhelmed by an unpleasant feeling. He was horny and hated being left unsatisfied. Doc said he could use his hands, but he couldn’t bring himself to just jerk off and call it a day.

He wasn’t hungry enough to forget about it.

“You're not eating?” the man asked, noticing that the boy was frowning over his bowl.

“I’m trying.” Marty looked up at him. “I can’t really,” he said.

Doc stared back at him as he drank his coffee. “Damn, you have that look.” He waited for Marty’s reply, but all he saw was lust in the boy’s dilated pupils.  ““I told you to rub one off, you’d be able to eat now.”

“you一” Marty was taken aback by what had just escaped from Doc's mouth. “you never worded it that way!”

“I’m doing it right about now.” He set the mug back on the table.

The other followed the motion with his eyes. “You’re… quite something, honestly.” 

“Are we that different?” Doc suddenly asked. 

“Whom?” 

“Me and my other self from 1985. Are we that unalike?” 

“In a way.” Marty admitted, an apologetic smile curving his lips. “But also not. It’s weird.”

“I see.”

Something heavy crossed the air, leaving them in an uncomfortable atmosphere they half knew the cause of. Perhaps Doc was simply ignoring it, while Marty was only trying not to.

“You should eat, kid,” the scientist said, taking a bite of toast. “You need energy to time travel at will.”

“I don’t want to do that today.” Marty shook his head. "Can we just..." He finally grabbed his spoon with a sigh. "Can we chill and not think about it for just one day?"

Doc was confused. The teenager had never asked for a rest day before. He was so inclined to do everything in his power to fix things that, when he wasn’t doing so, it seemed like the end of the world was coming. And that might have started when they woke up.

"Of course we can, Marty. "It's your ability we're working on, and if you feel like you need a rest, we can take that."

Marty smiled. He was happy that Doc had agreed to pause things for a while.

 

The day dragged on, perhaps a little too slowly. Marty spent it watching the scientist work on a new design for the flux capacitor, which would later power the time machine. However, no progress had been made so far.

It was fine for the teenager. There was plenty of time anyway.

He was quite content to sit there silently and support Doc as he went about his business. They would occasionally exchange a few words, but when Emmett was really focused on something, Marty didn’t dare disturb him.

Copernicus kept them both company by running around the lab for a while, before jumping onto the boy’s lap at the workbench. They didn’t even bother turning on the radio; they just wanted a little peace and quiet.

Doc was talking to himself a bit. Sometimes he would swear at his own hands for writing something down incorrectly or misunderstanding his own calculations. Apart from the sound of page-flipping, tools being used and the occasional light being switched on or off, it remained pretty quiet.

It lasted for the day, and perhaps Marty had forgotten about his situation again by then. He was enjoying this life now. But above all, he knew that he wanted a break. He was pretending that everything was fairly normal again and that life was as unpredictable as it had always been before the time machine events occurred.

Then the clock in the lab rang. It was already 7 pm. The dog barked excitedly, knowing that meant it was time for food.

“Well,” the scientist sighed, “that means we need to make dinner.” 

“I wouldn’t be against it,” Marty replied, jumping from the seat he had been in for a couple hours now. “Also wouldn’t mind a shower.” 

“You can take that while I make us dinner, how about it?” 

“Hm. I could.” Marty thought about something but then corrected himself, “I will.” He needed to find a way to ask the man about continuing their morning fuck session, but he didn’t know how to bring it up without hurting his friend's feelings. Doc was a difficult man to convince about things like that, especially in the 1950s.

“Oh, there's a new shampoo bottle in the cupboard above the heater,” Emmett mentioned as he packed some things to take back to the mansion. “Don't hesitate to use it if you finish the old one.”

“Gotcha, Doc.” Marty replied, whistling to Copernicus to follow him out. 

He might find a way to tell his friend. He just needed to be creative enough — that shower might help.

If he had been honest with himself, Emmett would have realized that he had also been thinking about it since this morning. He was just much better than Marty at repressing it. But almost an hour had passed, and Emmett was glad the clock had drawn them out of their flux capacitor brainstorming session because... the way Marty had kept staring at him all afternoon...

He wasn’t even sure if the teenager would still be up for bedroom activities, or if he was holding a grudge against Doc for stopping him this morning.

Emmett could try asking Marty for forgiveness. He was understanding.


7.38PM.

 

It was daring. But Marty was feeling daring tonight. He threw on a pair of socks and briefs, barely bothered to add a shirt —maybe that would have been too daring.

He stepped into the kitchen with wet hair and calves, smelling of almond shampoo. He didn’t even have to announce his arrival; Doc might have noticed the scent the moment he entered the room.

“Better?” he asked, not even looking at the boy behind him. 

“Yeah that’s great, thanks Doc.” Marty stepped closer, “what are you making us?” 

Emmett looked back at him, taking in his naked legs. “Well, figured you might enjoy some fish and carrots, I’m sorry I’m running out of一” 

“That will be just great, Doc,” Marty stood on his toes and kissed the man’s cheek, “thank you.” 

Doc smiled. “I’m happy to take care of you, again.” 

The teen smiled back. 

“Say,”  he gestured to the boy’s current outfit, “it's not even that hot outside, are you sure you’re…”

“Oh, yeah? Felt like… I needed to be more comfortable.” 

The scientist took a moment to process the information before nodding. "Good." He turned off the gas under the pans. “Marty, could you hand me the plates?”

The teenager obliged. He went over to the cabinet containing the dinner plates, grabbed two and handed them to his friend. “Here.”

They stared at each other as they exchanged the plates. It wasn’t just an ordinary stare; they both felt it and tried not to decipher its meaning.

Without breaking their eye contact, Emmett replied, "Thank you." He paused for a moment and then averted his gaze.

Marty observed him filling the plates with the freshly made food in silence. He was trying to find the right moment to speak, but he couldn't make up his mind. Any moment is the right moment if you're confident enough to pick it.

But Doc had the same problem, knowing that the teenager wasn’t oblivious to the unspoken. Maybe they were on the same page? That would be strange, wouldn't it?

He sighed and handed a plate to the boy with a warm smile.

Marty took it and flashed him a thankful grin. However, instead of sitting at the nearby table, he stood there, holding his plate and staring at Doc as he filled the second plate in the same silence with which he had filled the first.

Now, Marty felt uncomfortable and stiff.

“Doc could we一” He began.

“I know, Marty I一” Doc looked back at him and began to apologise before the boy could finish his sentence. “I’m sorry about this morning. I was…” He gestured vaguely, unable to find the words he had prepared.

“Oh.” Marty relaxed his shoulders. “Well... Uh…” He struggled to find the words. He really thought Doc wouldn't agree to it. But was he?

“I don’t know how to ask you that,” Doc continued. “There’s no real way to do it the way I imagined.”

“I mean,” said Marty, looking away while still holding his plate, “maybe we don't need to talk about it?” He put the plate back on the counter next to Doc’s half-filled one. “We can just... skip to it?”

There was one last awkward pause between them as they stared at each other with equally lustful eyes.

“Yes,” Emmett replied, almost whispering. “That might actually solve the issue.”

The awful tension that had surrounded Marty since the morning finally left his body when they threw themselves at the other and pulled each other close.

Marty gripped Doc’s shirt so tightly that they knocked over the plate he had been holding, which fell to the floor and shattered, scattering pieces of porcelain and food across the kitchen. Doc was about to protest, but the teenager shook his head frantically and pulled him in for a deeper kiss.

“Don’t mind it, we’ve got better things to care about.” 

“But一” At this point, Doc didn’t have the control anymore and he got pinned against the counter. His hands came gripping the teen’s hips to pull him even closer. 

“Shut up, Doc.” Marty let out, annoyed already. “Been dreaming of you taking me all day long, so shut up and fuck me.” 

This took Doc by surprise, but he couldn't voice his complaint. Instead, he just looked incredulously at the boy. “But... dinner?” the scientist asked, trying to regain control. He really wanted to take Marty right there, on the counter if necessary. But another part of him was desperately trying to bring them back to their senses.

“Screw dinner, it’s on the floor. Let me be dinner.” 

They could. Indeed. They could just settle to that, giving up everything else for a little while. What was 20 minutes compared to the lifetime that would follow?

Marty's fingers tangled in Emmett's hair, pulling him even closer to his body, demanding more kisses.

The lifetime he'd have to wait to see that boy again. 

He pinched the teenager's hip skin, gripping him firmly enough to make sure Marty knew who he belonged to, but not so hard as to cause him pain.

Fuck, he was moaning against his lips now.

And the plate was still on the floor.

Doc really wanted to protest, but he knew he would never win against that boy. Marty ruled it all, and Doc had long come to terms with that fact.

Fine. Be it.

“I'll fuck you.” He let out, almost startling the teen by the choice of words. 

Marty scoffed between heated kisses. “Where? On your mother’s oak dining table?” 

“My dearest mother would have loved us to fuck on that table, Future Boy.” 

The teen got picked up and carried to said table. “That’s bullshit, Doc, she wouldn’t have,” he laughed in the man’s neck.  

“I’ll make her.”

“You’re a savage.” Marty got dropped on it, sitting on the edge. 

“Blame yourself.” 

Marty had never been happier to wear close to nothing for dinner. He would have exploded if he had worn anything other than briefs, but thankfully he wasn’t the only one who couldn’t stand having clothes cover his body. Doc was more than willing to help him get naked faster than the speed of light. His fingertips trembled as though he’d been restraining himself from jumping on the boy all day.

“T-The fuck you’ve been waiting for all day, Doc?” Marty let out breathless, melting under the man’s touch and lips covering him with kisses. 

And Doc looked back into the boy’s eyes, equally breathless, “I have no idea.” His nose touched Marty’s and he closed his eyes, sighing, “I think… I like torturing myself, trying to see how long I can hold on without you.” 

"That's the stupidest thing I’ve heard you say today, Doc.” Marty tilted his head to reach the man’s lips and he drew him into another heated kiss. 

They were lying on the table now. Usually, Emmett would have said something about it, probably along the lines of not damaging his family furniture, but he didn't. In fact, he was using the oak table as a prop to pull Marty’s hips up and slide his briefs down.

Have they ever made love on a table before? Does the workbench in the lab count as one? Fuck if they knew.

Shit, now Marty was lying naked on the table.

How will he explain that to his Doc later?

By now, Marty was thinking too much. He didn’t even register Doc’s mouth on him until the sensation made his body jerk. “Ah! D-Doc!” He tried to hold on to something, but he was wrongly positioned on the table to be able to do so. He then ran his fingers through the scientist’s messy hair.

The man groaned around the teenager's shaft, sending vibrations up Marty's shoulders.

“Y-You know-” Marty began, controlling his breath, “next time, just jump on me, I’m a do or die kinda guy. All the… the talk and... stuff , isn’t my thing.” 

“I will remember.” Emmett agreed, giving him a smile. 

“Now get on with it, Doc, it’s unfair if I get all the treats and you don’t.” 

“You’re so close to burst already,” the man’s hand grabbed the boy’s hard on, “look at yourself, Marty.” 

He wriggled slightly, “yeah, tell me about it, but I can hold on.”

“Can you, Future Boy?” Doc reached back the teen’s face to kiss him. 

Marty gave him a cocky grin. “Cant hurt to get it as a challenge.” 

“So let’s try to reach climax together.” Doc kissed Marty’s throat, and the boy giggled. 

They got fully undressed and, in the process, broke a mug that had been sitting on the table since the morning and scattered a couple of notebooks and pieces of paper around the floor. The whole dining room was a mess, and it was about to get worse. Emmett suddenly felt the urge to keep the table pristine and suggested they move it to the bedroom. He had already spoken too much for Marty's liking, so the teenager dragged him there without further ado.

It escalated again the second they threw each other onto the bed— they had been having dinner right before, where did that go? 一Marty wasted no time in taking Doc’s cock in his mouth, kissing it, sucking it, worshipping it.

“Marty-” Doc gasped, “slow down.” He threw his head back, he was too close already, this wasn’t fair. “I can’t- I won’t be able to hold back if you keep it that way!” he cried, not out of anger nor pain, but more out of frustration not to be able to hold the promise he’d made to the kid to come together. 

So Marty stopped, “I’m sure you can, Doc, come on, it’s not that hard.”

“It’s hard enough as it is, I assure you, kid.” 

Marty rolled his eyes with a smile. “Well then, we just have to try harder. I know you can keep it in so you can come with me. And with that, he took the length back in mouth, and Doc’s eyes rolled back again. 

He didn't hold back; Marty was too irresistible and Emmett had placed too much faith in his ability to control himself. It happened right then and there; he didn’t even have time to warn Marty, whose face was already covered in cum. They both laughed, and Marty might have joked about needing another shower.

Marty then got to reach climax in turn.

Emmett couldn’t stop thinking about the boy leaving. Even when they shared intimate moments, it was always Marty leaving for such a long time. Every touch, every kiss, every smile... He would have to wait forever for them again, and that moment could come at any time. Marty could disappear right in front of him and never come back.

The thought was terrifying, and it never left him, even when the boy moaned his name as he came in his hand.

Marty was a diamond that he knew he should cherish. He wished that he had stayed back in 1931, even if it meant risking the destruction of the entire universe through paradoxes. All Emmett wanted was for that boy to be his.

“Hey,” he said, once Marty finally relaxed against him, “I need to get out of town tomorrow, I have a contact that can give me something for the flux capacitor I’m building, you’re coming along?” 

“Sure,” Marty accepted, closing his eyes. “I’ll think about my time travel nonsense on the way, I  wouldn’t mind another day’s rest from it.”

“Right.” 

They laid there for a couple minutes until Marty realized they ruined dinner. 

“Say, Doc, shouldn’t we make dinner again ? Or… at least clean up the mess we’ve made?” 

Emmett sighed, “ah, shit一 Copernicus might have found the food on the floor…” He sat up, grabbing back his clothes. 

“Does that mean dinner?” Marty wondered, not moving.

“Are you still hungry?”

Marty winked, “starving.” 

Doc snorted, shaking his head, “ you’re really a teen… get up, I’ll give you real food.” 

“Only if we can get back to it afterwards.” 

It was awful to have to let him go again. His heart ached at the thought of waking up without Marty one morning sooner than he could imagine. But it was the right thing to do, to find him again in the distant future where he truly belonged.

Perhaps he could settle for that. He could seek that future as it has been described by Marty and make it his real goal — far more important than the time machine.

Doc nodded at him with a comforting smile. “We’ll see about that, Future Boy.”