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He knew it was coming.
At Rung's age it was fair to say he had become well acquainted with his heat cycles.
His last heat had been so long ago he was beginning to wonder if his frame had finally decided it had enough, but after the pop up that appeared in his HUD that morning he knew it wasn't the case.
And so, that day was spent preparing his habsuite, fluffy cushions and sheets on the berth, his favourite toys and bottles of lube on the nearby table, he even prepared a few scented candles to set the mood and cover his own scent if anyone were to walk by his hab.
After having finished rescheduling all his appointments with his patients he laid down in his berth with a sigh. He was already beginning to drift into recharge before a ping came up from his comms.
--hey. Magnus told me about your sudden leave for tomorrow. Is everything alright?--
Having 𝘔𝘦𝘨𝘢𝘵𝘳𝘰𝘯 of all mechs as a conjunx rewarded him with some fairly understandable reactions, from worry to fear to even disgust, after all, they knew Megatron the ex tyrant and Decepticon leader, not the soft, caring mech who'd fight Unicron himself for his conjunx's well being Rung knew intimately.
--yes yes, you needn't worry. My heat cycle's about to start that's all--
--I can call off tomorrow's meetings and be with you if you wish--
Megatron knew Rung preferred him to stay focused on his duties instead of always worrying for him, but he felt like he couldn't leave Rung alone unless he specifically asked.
--it's only a heat cycle, nothing I can't take care of on my own. You go do your job as captain. If I find myself in need of help I'll be sure to comm you-- Rung's glyphs were full of reassurance for his conjunx.
After a few seconds, Megatron responded back
--alright. My comms are always open. Recharge well, my love--
He always responded back with such intricate glyphs full of love and affection, no wonder it took him so long to respond.
Rung smiled to himself and snuggled up under the sheets, getting comfortable in his berth to get some deserved recharge
--good night, my captain--
__________
Rung awoke suddenly, panting and sweating, with a flashing overheating warning on his HUD and his plating scalding hot. Immediately throwing the sheets on the other side of the berth away from his body, his vents opened wide to let out some steam.
He fixed his askew glasses and shakily sat up, feeling the uncomfortable squish of his now plush valve lips against slick panels and his spike being too pressurised too long for comfort. Just when had his heat started?
He quickly opened his panels to alleviate the pressure.
His spike immediately jumped out, drops of pre already leaking from the tip down it's length. At the same time, his valve panels also slid back, lubricant pooled up behind them finally flowing out freely, staining the berth underneath.
With a grunt of discomfort and a whimper of desperation, he reached over to the table for his vibrator. He was so wet he wouldn't need the lube anyway.
Rolling back in position, Rung laid down on his stomach, his spike rubbing on the berth as he fumbled around with the vibrator, finally managing to turn it on and stretching his arm back to rub it's length against his engorged sensitive folds.
Oh how good it felt to finally have some stimulation and 𝘰𝘰𝘩 how he wished for it to be Megatron's thick spike. But Megatron had to work. Yes, Rung did say he'd call him if he felt the need to, but he couldn't cave in to his needs so fast and take Megatron for himself now could he?
When he finally pushed the vibrator in, he completely melted, rocking his hips back against it and then forward grinding his spike into the berth.
Rung's mouth fell open, gasping and panting softly with every roll of his hips. He laid his helm down on the berth and reached underneath him with his free servo and between his legs to rub his anterior node.
Pleasure quickly turned into frustration.
Rung was 𝘴𝘰 close and yet he just couldn't seem to reach that Primus forsaken overload. His methods simply weren't enough, he needed more, he needed a real spike to split him in half, he needed...
Embarrassed, the servo on his node slowly reached up to press against his audial, and with less than a second of wait, Megatron picked up. He fuzzily heard Megatron's voice telling Magnus to excuse him for the day before finally responding to him.
-I'm already on my way-
Rung's words caught in his throat to make space for a needy low whimper and he heard Megatron's fans clicking to life
-I- h-𝘢𝘢𝘩..I'm so s..sorry....-
Rung forced the words out between a moan and a gulp of oral lubricant that pooled up in his mouth.
-but I n-𝘦𝘦𝘥-! Haah..frag...! I need y𝘖𝘜!-
On the other side of the comm, Megatron heard Rung's frustrated groans muffled, probably from shoving his face in the berth.
-please..I ne-ed you s-𝘰𝘰𝘩 bad...I want..I NEED you to 𝘧𝘧𝘩𝘩...fill me up𝘏𝘈𝘏-!-
And with that, Megatron found himself basically jogging over to Rung's habsuite with his fans spinning so fast he thought he'd start flying, although his long legs allowed to make his way there almost as quickly.
Punched in the code to override the door's lock, he got hit by Rung's scent permeating the room, the candles rendered useless against the amount of smell being produced by Rung.
His conjunx looked like nothing more than a writhing orange mass on the berth as he tried desperately to reach that oh so close overload.
At the sight of Megatron though, he stilled, the servo holding the vibrator tossing it away just as quickly as he searched for it earlier, laying on his back and spreading his legs for Megatron to see his absolutely 𝘴𝘰𝘢𝘬𝘦𝘥 valve and madly twitching spike.
"Ple-𝘈𝘏- PLEASE"
Megatron re-locked the door behind himself and made his way towards Rung, dropping to his knees mid way and covering the remaining distance like that.
His servo looked massive compared to Rung's spike as he reached and stroked it softly, bringing it to his mouth to lick the tip.
Rung's back arched, thrusting his hips into his mouth in a rush of pleads and whimpers.
"So close soclose- stop teasing me!!"
Megatron didn't need to hear that twice before easily taking his conjunx in his mouth, licking the base of his spike and using his glossa to press it against the top of his mouth as his helm started bobbing back and forth.
It didn't take long before Rung stiffened and started to unload in long, thick spurs into Megatron's mouth, and Megatron stayed there, drinking up everything Rung gave him.
When it finally stopped and Rung fell back on the berth, Megatron opened his mouth, letting the still half-pressurized spike fall out. Hopefully that won't come back up for a while.
Rung panted and gasped. His frame still felt so hot, and his forge now felt oh so empty.
With a whimper he reached out for Megatron and felt his conjunx take his servo in his own, bringing it to his mouth to kiss and rub it against his own heated cheek.
"I've got you, don't worry"
With the last bit of clarity tugging at his processor, Rung used his free servo to spread his plush valve lips open, showing the tightening and releasing channel inside. His helm then moved up to look at Megatron, faceplate heated and glasses askew again, revealing Rung's determined expression.
"Breed me." He spoke between pants and huffs "I 𝘸𝘢𝘯𝘵 to be full of bitlets."
Megatron stared at him and chuckled softly. They had been discussing on having a bitty at some point, Megatron had offered to carry it too, but Rung insisted on wanting to do it himself. With his heat the chances of remaining sparked were through the roof, and who knows if they'll have a chance like this again.
So why not?
With a hand he carefully picked Rung's glasses and stored them away safely in his subspace, leaning in to kiss the space between his eyebrows.
"As you wish my dear"
Megatron's panel finally snapped open, heavy spike jutting out and bending under it's own weight.
A servo moved to pet and collect lubricant from Rung's valve, grabbing his length and coating it from top to bottom.
He then grabbed Rung's legs putting one over each shoulder and carefully alligning himself to Rung's valve entrance.
Rung moaned and looked eagerly at Megatron's jet black spike, ready to finally be filled properly. The red biolights on it's sides pulsating slowly and that beautiful knot mod ready to inflate and lock Rung to his conjunx. He was probably drooling, in other circumstances he would have been embarrassed, but did it really matter now?
Megatron took a deep invent and slowly started sinking into his lover's valve, inch by inch, then pulling out and sinking back in further. Rung was starting to grow impatient, rolling his hips against the length. His calipers started rippling, the accumulated charge threatening to finally topple over the edge oh Primus he was so close please-
With a harsh thrust, Megatron fully hilted himself into Rung, the tip of his spike kissing the still closed iris of his gestation tank and Rung saw stars, calipers tightening around Megatron's size as he finally let out the second overload of the day.
Megatron held himself in place, gently grinding his spike against Rung's rippling walls and watching him ride out his overload. When Rung had finally come down his high, Megatron stilled, looking at his spent conjunx laying underneath him. He pet and caressed Rung's chassis, the heat spent through his overloads quickly rising back up.
One of Rung's trembling servos moved to take Megatron's own, intertwining their digits before giving Megatron a sharp nod and a light squeeze of his calipers.
Megatron took the sign and finally 𝘧𝘪𝘯𝘢𝘭𝘭𝘺 started thrusting into Rung at a slow, savoring pace before eventually setting into a much quicker, wanting one. His spike set off sensors so deep and untouched inside Rung that he could feel his charge already threatening to topple into another overload.
Rung could feel his gestation tank's iris spiraling open with each thrust as Megatron hammered into it, both of them desperately chasing that pleasure itching just at the tip of their cables.
His calipers rippled madly around Megatron's thick length. He finally felt filled up 𝘱𝘳𝘰𝘱𝘦𝘳𝘭𝘺. His processor silent and comfortably clouded by pure pleasure and bliss, all he could think about was how good it all felt, to be taken care of, Megatron's spike kissing open his chamber's iris once again, the pressure building in his tanks-
Pressure in his tanks?
Oh. 𝘖𝘩 𝘗𝘳𝘪𝘮𝘶𝘴-
"M-Meg- HNGH-!"
Rung immediately snapped back to himself, reaching back with a servo to quickly slap at Megatron's own.
Megatron also felt his consciousness being pulled back down into his body. "Huh..?"
"𝘍𝘳𝘢𝘨𝘧𝘳𝘢𝘨𝘧𝘳𝘢𝘨𝘧𝘳𝘢𝘨-! Megatr-𝘖𝘕- MEGATRON PULL OUT PULL OUT-"
Megatron barely had the time to pull his spike out before Rung stiffened, a strong, clear jet of fluid squirted out of his valve and splattered on Megatron's plating, flowing down to the floor underneath.
He stared, panting, spike still in his servo as the stream stopped and Rung reached down to rub at his node, dragging out a few more splashes before gesturing at Megatron to come back and sluggishly resuming his position.
Megatron finally moved, pushing himself back into the hot channel, his servos grasping Rung's own and holding his arms above his helm. His hearing became fuzzy again and Megatron could feel his knot starting to swell more and more with each thrust, spike throbbing furiously against Rung's channel.
He leaned down, mouth hanging open, panting and moaning against his conjunx's bright, warm spark window.
He had to reset his audials a few times for them to work properly again, and all he heard was his and Rung's plating clanking together as Rung blurted out a cascade of pleas and gasps.
"Don'tstopdon'tstopdon'tstopdon'tstop oh Primus yesyesyesyesyes-!"
Megatron gritted his dentae and with a few sharp, deep thrusts he finally felt his knot being engulfed in warmth inside Rung's valve, throbbing spike releasing thick spurs of transfluid directly into Rung's gestation chamber.
In tandem, Rung toppled into his third overload in a silent moan voice box too strained to do anything more. His calipers squeezed and released around Megatron's spike, milking as much transfluid as his body could from it.
Megatron sagged on top of Rung, barely holding himself up with his arms to avoid crushing his poor conjunx, venting slowly together to regain a sense of composure. Rung's optics were dim, a hard reset. He held as still as he could as to not put strain on their junction, gently starting to pull away only once the knot had started to depressurize. Rung's gestation tank's iris had closed back up, leaving only little dribbles of Megatron's transfluid and his own lubricant to dribble out.
As Megatron went to pick Rung up, ready to head to the washracks, he woke up and grabbed Megatron's arm as tightly as he could, plating quickly warming up 𝘢𝘨𝘢𝘪𝘯. Just how strong was this heat planning on going?
"Hmmfh...more..need more..." He held onto Megatron's arm, pulling himself up, gasping at the weight in his chamber. Quickly Megatron wrapped his free servo around him for support. He flinched softly at the feeling of just how overheated his plating was, still, he helped Rung move in the position he wished.
Once Rung caught his breath and settled on all fours on the berth, he spread his legs as much as he could to level himself with Megatron's spike, looking down between them and reaching for it with a servo. He softly pet the tip, catching stray droplets of transfluid still lingering on it before sluggishly alligning it to his valve lips, grinding himself on it to bring it back to full pressurization.
"Give..ah, more please..I can't wait-hnf..anymore"
Megatron guided Rung's servo back on the berth, leaving it to wrap his arm around Rung's middle section and using his own other servo to grab his spike, giving it a few firm strokes before bringing his tip to kiss the rim of Rung's valve entrance. This time, hilting himself inside his conjunx was much easier thanks to their first rather intense session.
He set back into his previously established pace, hammering into his conjunx and relishing in the loud moans of pleasure coming out of him. His servos moved to hold Rung's hips slowly rotating his aft upward, making his back arch and pulling them back against each of his thrusts forward, spike once again easily meeting his gestation chamber's iris.
The whole berth shook with the strength of Megatron's thrusts making the flat base skid on the floor with short loud screeches in tandem with Megatron's guttural grunts.
Rung's servos clenched on the sheets with all their might, pushing his face into the berth and then turning to lay on one cheek, optics rolled to the back of his head and mouth hanging wide open, moans freely rolling out of it and dribbles of oral lubricant leaving a dark spot where he laid.
Rung could feel that familiar knot forming in his tanks, but it felt like a 𝘥𝘪𝘧𝘧𝘦𝘳𝘦𝘯𝘵 kind of familiar...a similar pressure to what he felt before, but...
Megatron heard something hit the berth everytime he pulled back, like a liquid. Was Rung squirting again? No it couldn't be.
He pulled back fully in a huff and looked down at Rung's array, being met with a soft trickle of waste and Rung's embarrassed whimpers.
"Need..pressure..."
The trickle stopped completely, much to Rung's dismay. He hadn't even noticed his tanks were so full until now. Now he felt them 𝘸𝘢𝘺 too much, the edge of his overload making it impossible to void now.
Megatron scoffed playfully and impaled Rung in one smooth motion, causing him to moan in surprise and a hard spurt of waste to shoot out.
Each thrust earned him a splash of waste from his conjunx until he was finally empty, the now wide dark spot on the sheets unable to hold anymore fluid and causing it to trickle down the side and onto the already soiled floor. They'd have to do a thorough cleaning of the hab suite. But not today. Not now.
"FraaAaaAg-! Give it to me. Give me- all of it-!!"
Megatron's movements became quick erratic, knot beginning to pressurize again and tip peeking through into Rung's already full chamber.
When Rung had finally reached his overload, he wrapped himself around him, engulfing Rung with his large frame as he pushed his knot in, emptying his spike once again into his conjunx and grinding through each throb of his spike, dragging out as much transfluid as he could.
He looked down into his lover's finally calm, loving optics and saw recharge creeping in.
Megatron gently picked Rung up, careful not to hurt either of them of their union. His plating was beginning to cool down at last.
Slowly, he made his way to a nearby seat, laying a sleepy Rung against his chassis as he pet his helm and slid his servo over the bent plating on his abdomen. Perhaps Megatron had filled him 𝘵𝘰𝘰 well...
__________
The berth was clean, disinfected and the sheets were fluffy again. He had to admit he was sore all over, but Rung still relished in the feeling of being wrapped so lovingly in the fresh sheets as he munched on his favourite snack. Rust sticks sprinkled in zinc. Provided by Megatron of course, who now found himself cleaning and tidying the habsuite after their 'fun' the day before.
Megatron saw Rung staring at him, his newly returned soft gaze left unshielded without his glasses, and left his cleaning duties to go pepper him with kisses.
Rung gently ran his servos over Megatron's helm, smiling to himself as he checked again the pop-up that appeared that morning in his HUD.
[𝙶𝚎𝚜𝚝𝚊𝚝𝚒𝚘𝚗 𝚙𝚛𝚘𝚝𝚘𝚌𝚘𝚕 𝚒𝚗𝚒𝚝𝚒𝚊𝚝𝚎𝚍]
[ 𝚙𝚛𝚘𝚐𝚛𝚎𝚜𝚜 ]: 𝟶.𝟸%