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The First Time is Never Good

Summary:

For the first time, Gaku is allowed to take charge during sex.

It goes as well as you'd expect it.

Notes:

Prepare for awkward sex

(See the end of the work for more notes.)

Work Text:

They had talked about it quite a few times. About wanting something different. Changing things up for a bit. More clearly, they wanted to switch positions. To know what it’s like to be on the other end. However, Gaku’s insecurity about taking charge and Yugamu’s inability to control himself proved to be quite the unfavorable combination, always leading to Yugamu pinning Gaku down and fucking him until he became a crying mess.

And yet they both started getting desperate.

So this really shouldn’t have surprised him.

 

Yugamu had told him after dinner to come to his room in about an hour. Now, Gaku was standing in Yugamu's room. The owner of the room was lying in his bed, upper body naked except for the choker around his neck and.. for the red rope around his chest and arms, keeping his hands behind his back. An intricate design woven around his muscles, stretching further with every breath.

It seemed to dig into his skin, already leaving marks. Gaku was too dumbfounded to speak, staring at his boyfriend’s - that’s what they were, right? - exposed skin. They way his pecs were slightly squished by that tight rope-

“My eyes are up here, my dear~”

Gaku’s eyes shot up, staring blankly into Yugamu's widening grin.

“What..” He tried to swallow but his mouth felt dry all of a sudden. “What is that here?”

“Can't you tell? You can do whatever you want to me~” Yugamu struggled weakly against his restraints, as if to prove a point, his muscles flexing against the rope.

“O-Oh” Gaku answered, unable to give a better answer. It suddenly started to feel a lot warmer in that room.

“Are you sure about this?”

He stared at Yugamu, who in response smiled back and slowly opened his legs wide enough for Gaku to fit in between, inviting him. His hakama hung loosely around his hips, ready to be pulled off.

“Don’t worry, Maruko-kun”, Yugamu spoke up. “I won’t bite you this time~

“That-! You couldn’t bite me anyway right now!”

“Ooh? Then why won’t you come closer?” Yugamu challenged him.

Gaku huffed, but finally decided to move. He removed his jacket, shirt and hat and threw them off somewhere to be forgotten about for the rest of the night.
He hesitated before finally climbing onto the bed towards Yugamu, who was not leaving him out of his sight until he had to actively look up at Gaku.

The unfamiliarity of the situation hit them both at once, with Gaku staring down at the restrained guy, who at this point would usually start ripping off Gaku’s clothes. Only this time, he had to wait for Gaku to make the moves.

Maybe out of reflex Yugamu pulled against his restraints, not strongly but enough to be noticeable. He was getting impatient. And Gaku noticed.

Gaku held his breath, expecting for a second the assassin would break free, but when Yugamu calmed again, he let out a shaky laugh.

“You know, this is actually kind of funny, seeing you all helpless like this!” He and his big mouth all the time.

“..Helpless, hmm?” Yugamu stilled fully, his visible eye crinkling from the mischievous grin forming.

Gaku suddenly felt a push from behind as legs seemed to hug him tightly, causing him to lose balance and toppling down onto Yugamu.

“H-Hey! I thought you wouldn’t interfere!”

“Then don’t keep me waiting, my love~ Or I might get really impatient.”

Gaku quickly sat back up and decided he didn’t want to find out what the assassin could still do even despite having his hands bound behind his back.

Despite this, he found himself unsure on what to do exactly. Yugamu staring up at him in anticipation didn’t help. Eventually, Gaku’s focus shifted back to the red rope. To the half-naked body under him.

Yugamu had that strong broad build that always made Gaku more insecure about his own body. But the way the rope looked on Yugamu. The way it seemed to follow the flow of his body, of his muscles and curves perfectly. The bright red color had such a nice contrast to the silver piercings adorning Yugamu’s nipples.

Gaku figured there were many fancy words better suited for this, but all he could think of was beautiful.

Without fully realising what he was doing, his hands started to run across Yugamu's chest. It felt so warm. He tugged at the rope underneath Yugamu's pecs, quickly realising they were even tighter than expected. “Doesn't that hurt?”

Yugamu let out an unexpected shaky breath before answering. “Just the way I like it. Would you prefer it was tighter?”

“That’s.. not why I asked.” Gaku sighed, “How did you even tie yourself up like that?”

“Oh, Sumino-kun was so nice to help me with the parts I couldn't reach myself.”

His whole body got stiff..
“He saw you like this?” There was an edge to his voice he couldn't quite explain.

Yugamu blinked at him, silently. Then he tilted his head, his grin turning somewhat crooked.

“What? Does that bother you?”

“I- I mean..” Heat rushed to his face. Somehow Gaku started to feel sick in his stomach.

Yugamu seemed to notice and his expression softened instantly. “For your information, he did not seem very happy at my request and only accepted when I told him I would bother Kirifuji-san about this then.”

This sudden reveal made Gaku laugh out loud, the weird sickness in his stomach slowly dissolving again. “Yeah I can imagine.”

“If it makes you any happier then next time you can tie me up yourself! This time I just really wanted to surprise you~”

Gaku felt his cheeks getting hot. “You are so weird!”

“So are you, for staying with me.”

Gaku sighed loudly, though he couldn’t hide the small grin on his face.

 

His hands were still playing with the rope. He felt a bit calmer now, though still not sure what exactly to do. Somehow, this was a lot harder than he imagined.
His hands moved up to the pecs completely on their own, awkwardly cupping them. Gaku had - thanks to Yugamu - made the discovery that his chest was sensitive, so surely that was the case for Yugamu as well?
Yugamu closed his eyes as his chest was being massaged, even letting out small gasps when he felt his nipples being rubbed.

Yugamu’s chest was mostly hard, possibly from all the experiments he had to endure. The rope however did good work pushing up all the squish that was left.
Despite his curiosity, Gaku didn’t get to touch this body a lot, so he couldn’t help but play with the skin and flesh now that he got the chance. Squishing it and rolling the nipples around, pinching them with his fingers.

Yugamu’s breath hitched as one of his piercings was being pulled and he arched his back, pushing his chest against the hands already playing with his body.
Gaku felt Yugamu’s heart beat against his hand.

“So, uuh.. Does this feel good?” He asked and felt immediately weird for even asking.

As if he was sensing that, Yugamu chuckled in response. “It does. The skin on your fingers is so rough.”

“That’s.. nice. I guess?”

“Aah, I wish you could touch my insides like that. It would hurt so good! Maybe next time, you should cut me open and force your hands underneath my ski-”

“Nope! Not happening!”

“Aww, oh well. At least there is one way to feel it inside~”

Gaku rolled his eyes at that. “Yeah yeah, I got the message.”

 

His hands slid down Yugamu’s sides, feeling him shaking in anticipation, until he reached the hem of the hakama, slowly sliding it down, revealing Yugamu’s already hard dick. The size intimidated Gaku as always. It was a strange feeling knowing that this time this dick would not impale him. He felt a little disappointed about it, to be honest.

But he also really didn’t want to waste this opportunity. However, it also made him more aware of their.. differences in size..

He quickly shook the hakama off, now sitting in front of a fully naked Yugamu.

Said person was gazing up at him, skin flushed red. “Aah~ I can’t wait to finally feel you deep inside of me. I’ve been waiting for this for so long.” Yugamu was visibly trembling as he said that, nudging Gaku with his legs to continue quickly.

Gaku averted his eyes in embarrassment. How can Yugamu always say stuff like that so easily? Nervously, he grabbed Yugamu’s legs, spreading them wider as he lowered his gaze, until it fell onto the curves of Yugamu’s ass. Not that big, but still a nice shape.

Eventually he realised he couldn’t drag it out any longer as his eyes settled on the hole between the cheeks. So.. starting with his finger, right?

 

Come on! This couldn’t be that hard! He had seen (and felt) Yugamu do it multiple times - hell! - he even did it to himself a few times (under Yugamu’s instructions but WHATEVER!)

He picked up the bottle of lube that Yugamu must have already placed on the bedside table beforehand and put a good amount on his hand, rubbing the lube between his fingers.

 

So, first spreading the lube around the ring of muscle. Then, first finger in!

It went in far more easily than expected. Yugamu gasped as the intruder wiggled inside and spread his legs even wider.

Okay! So far, so good!

Whenever Yugamu was feeling especially nice while preparing Gaku, he would wait until Gaku had fully adjusted to the finger inside before starting to move, but seems like waiting wasn’t necessary here?

So, he started thrusting his finger in and out. First slow, but soon getting quicker. Yugamu let out a few satisfied sighs, very different from the shaky mewls and whimpers Gaku would already let out at this point. Gaku tried his best not to feel frustrated about this.

Surely, he could also turn Yugamu into a mess! Showing him that he is just as good at this as Yugamu is!

Even the second finger went in without any resistance. Wow, maybe he was actually good at this!

“I prepared myself a bit in advance when I thought about you, I just couldn't stop myself.”

Oh. Okay.

He would not let that deter him! At least that meant he didn’t have to prepare that much!

Without a second thought he quickly shoved a third finger in and revelled in the way Yugamu’s breath hitched from the sudden intrusion.

Hehe, that’s what you get!

He pushed the fingers in as far as he could, curling them to rub the inner walls. Yugamu started whining, spreading his legs as wide as he could.

“Aah, so rough with me. I could almost think you are somehow angry at me.”

“Be quiet, I’m trying to do something here!”

“Ohoo?” he laughed softly. “I love it when you get more assertive.”

Gaku tried to ignore him as he searched for the spot that should make Yugamu scream. His whole hand got to work, his wrist turning and fingers curling. Yugamu started moving his hips impatiently, fucking himself on Gaku’s fingers, all until he visibly twitched and his mouth opened in a loud moan.

“T-THERE, please! More!”

“Hah! Now you see the true magic of my fingers!” Gaku yelled out excitement.

“Ahaa, you’re so cute and funny, Maruko-kun.”

H-Hey, that was supposed to sound cool, or even hot! Not ‘funny’!

 

But now that he got the spot he would use it as much as he can. He put the full force of his fingers into rubbing Yugamu’s prostate, fully ignoring the strain it put onto his own wrist.

Surprisingly (or not at all, now that Gaku really thought about it), Yugamu had no intention of suppressing his noises at all. His moans and whimpers falling out without any restraint.

“Haa! Y-you’re doing soo good. A-AH!”

His legs around Gaku were trembling like leaves, and that’s when Gaku noticed that there was already precum forming at the tip of Yugamu’s dick.

“A-As much as I love the thought of coming from your fingers alone- AH-” Yugamu whined, “I much prefer something else now..”

 

O-Oh. Well, he did already seem very pent up when we started.

“R-Right.” Heat rushed through Gaku’s cheeks. So they were really doing this now, huh.

His fingers came out with a squelchy noise and Yugamu’s hole seemed to twitch from the sudden emptiness. Gaku swallowed audibly.

With shaking hands he pulled his own pants off and put lube on his own, already surprisingly hard, dick. Huh. He hadn’t even realised that. Guess Yugamu wasn’t a total freak for always getting so pent up from simply fingering Gaku?

Yugamu already had his legs spread wide, but Gaku wanted to feel a tiny bit more prideful and stronger as he grabbed him by his (muscular) thighs. This had absolutely nothing to do with their different sizes becoming apparent again as he positioned himself in front of Yugamu’s entrance!

 

Other than with his finger, his dick gliding in easily did not fill him with pride. And still, an embarrassingly loud gasp escaped him as he pushed his dick into the unexpectedly hot and still tight hole. He felt his eyes getting wet from the sudden pleasure.
Yugamu moaned loudly, obviously not sharing his partner's sentiment.

 

“Y-You don't have to fake it for me, you know!”
“I'm not.. it's just.. AH- finally feeling you inside me.. it makes me so happy~”
Gaku just felt his dick twitch from that.

That was when it hit him. He was actually having sex with Yugamu right now. While not being the receiving one.
He stared down at Yugamu, who in return gazed up at him with a loving smile, drool already running down his chin.
“You look so pretty up there~”
“Thanks, uuh.. You also look pretty, down there? I mean-” he sputtered, blushing even harder as Yugamu laughed.
“Why, thank you! Now please, I think we were doing something here?”
“R-Right!”

Without any hesitation Gaku started moving his hips and Yugamu’s legs immediately clasped around him, holding him in a tight grip. Gaku jumped from the sudden action and quickly got annoyed by Yugamu trying to take control again. To assert his dominance, Gaku chose to hold onto Yugamu’s thighs anyway.

His thrusts felt a little awkward as he tried to find Yugamu’s prostate. Even despite getting it with his fingers earlier, finding that spot again proved to be just as successful as the tongue guiding your finger to find that piece of food stuck between teeth!

“Want me to help you a little, cutie?~”

“N-No, it’s fine! I can do this” Gaku cried out more desperately than he intended to. He tried re-angling his body - now that’s an idea!

Another thrust and finally Yugamu twitched and let out a surprised gasp. Hah! See?!

However Gaku quickly had to realize that constantly hitting that same spot was way harder than he imagined. He tried not showing the frustration on his face, but didn’t make a good job at doing so.

He felt a slight nudge coming from Yugamu’s leg, pushing him a little forward and that seemed to do it. Yugamu gasped as his spot was getting hit repeatedly, and he quickly strengthened the grip of his legs around Gaku to keep him in that exact position.

Yugamu quickly turned into a shaking mess, moaning and crying for Gaku to do more, to be rougher with him, as if there were no neighbours who could hear them. Gaku could already see Moko’s disappointed stares the next day.

He didn’t fare any better though, gasping and whining from the hot pressure surrounding his dick, trying his best to suppress his voice.

But despite all that, he was hit by a wave of doubt. Was this really enough? He hated admitting it, but he knew he was relatively small, especially compared to Yugamu. Yugamu was always talking so much, doing so much, and it always left Gaku as a complete mess.

As always, Yugamu quickly seemed to pick up on that. “So desperate to make me happy? That is so cute!”

“How can you call me desperate? I’m not- hnnn the one asking others to tie me up because I’m so desperate to get my ass filled?”

“Ooh?” Yugamu grinned, a shaky breath coming out of his mouth.

“Seriously!” Gaku continued, letting all his frustrations out. “You could have asked like a normal person, but of course you had to be a freak about it! Ah..ha.. And you had to drag other people into this. But why am I even s-surprised about it? You probably.. ha.. enjoy the way Sumino-kun judges you for this!”

Without him realising, he started to thrust faster and rougher, the uncertainty of his movements fleeting. His voice was getting shaky too.

“Aah~” Yugamu whined and he closed his eyes, taking all of Gaku’s words in with a huge smile on his face.

“Who even gets off on seeing people judge them?? How can you be so- so confident while having no shame at all? I hmmm- bet you would enjoy the others watching you getting f-fucked by me. And how they would look down on you after that. Is that what you want?”

“AAAH~ Maruko-kun..” Yugamu moaned out loudly in response. And that’s when Gaku stopped.

He finally saw the way Yugamu was drooling and trembling, how his dick was twitching. The giddy smile on his pink face.

Oh. Of course! Degradation! Yugamu loves that!

Now there was a chance!

“R-Right! It’s because you’re a w-whore that you’re uuuh.. That you want to be fucked by me so badly!”

Despite Gaku’s amazing idea of active degradation, Yugamu only snickered.

“S-Shut up! I’m trying my best here!”

“You are so cute.” his response came out with a moan.

“At least I’m not acting stupid.. like a stupid bitch in… in heat!”

An expression of amusement appeared on Yugamu’s face.

“Trying so hard for me. This is getting me so excited!.”

“Okay, I’ve had enough!” Gaku leaned over to the bedside table, grabbing an object that he knew would be in the first drawer.

“No more talking for you!” he exclaimed triumphantly as he quickly forced the ball gag inside Yugamu’s mouth and fastened it at the back of his head.

Yugamu’s eye widened in surprise at that bold move, and- Oh wow! Yugamu just got so much tighter around Gaku’s cock.

Yugamu’s surprised expression soon crinkled into a smile of utter delight. The sounds coming through sounded like a happy whimper.

Okay, so that did something!

“You are so frustrating!” Gaku cried out. But whatever, he would take that opportunity! He had completely abandoned the idea of degrading Yugamu, as this didn’t seem to be his forte. At least not when he is actively thinking about it.

He resumed to thrusting into Yugamu (guided by Yugamu’s legs, which he didn’t comment on to save his pride) and- think! What else does Yugamu like? Yugamu pressed his eyes closed, clearly enjoying the position he was in. The ball gag didn’t do anything to make him quieter, as he still moaned like a porn star. Drops of tears fell down his face. He didn’t even realise he started crying from the stimulation.

The imaginary lightbulb above his head turned on. In a moment of proving his pure genius, he grabbed Yugamu by his hair and pushed him into the pillow. The muffled and yet still loud whine made Gaku’s heart flutter. He should say something, right? It felt awkward without doing so, but Gaku would not embarrass himself further by attempting dirty talk again.

He said the only thing he could think of. “Look at me, Yugamu.” He just wanted to fully see the state Yugamu was in. The state he was causing by doing.. all of this to him. The first name slipped out completely by accident.

Yugamu’s eye shot open, though this time less in shock but rather in amazement. Gaku pulled again, stronger this time, forcing out another loud moan from Yugamu.

The assassin’s noises got even louder and his whole body was twitching. His arms struggled against the restraints and his leg’s hold on Gaku seemed to weaken. Drool dripped down his face. His whines started to suspiciously sound like Gaku’s name. He was getting close!

It didn’t look better for Gaku at all. His legs felt sore and tired, but his hips seemed to move on autopilot, pounding erratically into Yugamu. He tried to hide his noises by biting on his lip, though it proved to be useless and more pathetic whines escaped him. Drops fell down his face.

Suddenly Yugamu’s eye rolled back and his thighs clenched around Gaku as he came hard over his own chest, some drops even landing on his face. The sudden tightening of his hole pushed Gaku over the edge as well. He tried to keep fucking Yugamu throughout the orgasms, but failed as his whole body seemed to shut down form the intensity.

He fell onto Yugamu’s chest, his hand loosening its grip as his body lost all its energy.

Gaku felt completely spent. Being the one doing the fucking was a lot more exhausting than he expected, but he still felt somewhat proud of himself.

Alright, he should probably help Yugamu. He weakly sat up to look at his boyfriend who completely seemed to be out of it as well.
First, he pulled out with a gasp and then removed the ball gag which, eww, was full of spit. The rope proved to be a lot harder though and Yugamu who was still in pure bliss did not help at all.

Gaku started to grow concerned as he saw that dark bruises were already forming under the rope and yet he still couldn’t open the knots with his shaky hands. Did they maybe overdo it?

“H-Hey, are you really okay?” Gaku asked nervously, his fingers carefully rubbing a particularly painful looking bruise on the arm. “This doesn’t look good.”

 

Yugamu seemed to snap out of his trance, his eye rolling back to focus on Gaku instead. Then legs clenched around him again.

Gaku didn’t even know what was happening as the room seemed to move until his back hit the mattress. Yugamu, now towering over him, had a wild grin on his face.

“Maruko-kun, you are so perfect! You were truly amazing! But I don’t think this is enough for me.”

Before Gaku could even ask, he felt Yugamu’s ass pressing against his dick, rubbing it between his buttcheeks and quickly bringing it into full hardness again.

Gaku moaned out loudly as the overstimulation rushed through his body. He weakly struggled against Yugamu, trying to push him away. But somehow even with the ropes holding Yugamu’s arms back, Gaku could still not fight him off. “N-Nooo.. No more. I can’t- Ah- it’s t.. too much.”

His begging only caused Yugamu to let out a quiet moan. “That only makes me want you even more. Maruko-kun… I just can’t get enough of you.”

He quickly positioned his hole above Gaku’s cock and didn’t hesitate to take him in until it was fully inside.

Gaku screamed out as he arched his back, his vision turning completely white for a second. He was pretty sure he scratched Yugamu’s thighs.

Yugamu quickly started bouncing on Gaku’s dick, sucking him in repeatedly as he could. He leaned back and changed his pace, now slowly thrusting his hips forward and keeping the throbbing cock deeply lodged inside him.
His moans and shaky breaths filled the room as he seemed to massage his own prostate with his partner’s dick.

Gaku was holding onto Yugamu’s thighs for dear life, any kind of begging buried over his countless crying and gasps for air. His dick felt like it was burning from overstimulation, but yet again he felt betrayed by his own body.

Because for reasons he didn’t understand, the burning felt painful in a weird way that was almost- no, definitely pleasurable! Like a thousand tiny pricks along his dick, keeping it full and erect.

Not just that! The thought of Yugamu actually fucking himself on his dick! If Gaku’s brain wasn’t slowly turning into mush he would have given everything to watch!

All the noises of the world seemed to tone down, even his own, leaving only room for Yugamu’s moans and whimpers to sound through.

He had no idea how much time was passing, all that he could think of was that it was hurting so good.

The weight on top of him shifted as Yugamu suddenly leaned forward, hovering over Gaku. “Ah, I’m being selfish again, aren’t I? But I want you to enjoy this too~”

Gaku almost wanted to refuse, because surely, he couldn’t handle any more pleasure. But Yugamu quickly changed his rhythm again, now full on bouncing on Gaku’s dick.

Gaku opened his mouth in a silent scream and his eyes rolled back. The tiny pricks were immediately replaced by waves of push and pulls. It felt like his body was thrown around the line between pain and pleasure, with the latter gaining more and more of the upper hand.

Yugamu seemed to be on one of his usual rants, but Gaku could barely make out any words at this point.

The orgasm came like a punch, hitting Gaku so suddenly his whole body was convulsing and tensing he could swear he felt his joints crack a little. And yet, Yugamu did not seem to stop, apparently trying to get everything that was still inside Gaku's dick. Eventually, his brain turned off.

 

He came back to his senses as a damp cloth wiped the sweat off his face. Yugamu smiled down at him softly, telling him that he did so well.
Gaku tried to sit up, but his body still felt like jello. Yugamu quickly helped him lean against the bedframe and held out a glass of water for him. Only then Gaku realised how incredibly dry and hoarse his throat felt. He must have screamed a lot without even realising it.

He had no idea how much time had passed, neither before he woke up, nor until Yugamu cuddled closely to him and petted his head. And how did Yugamu even get out of the rope??

Gaku slowly turned his head until he saw Yugamu’s face, smiling at him with pure adoration and love, and Gaku could just not feel mad at him at all. “You are an asshole, you know that?” He still let out, wanting to feel one last victory for the night.

Yugamu’s face split into a wide grin. “And yet you stay here with me.”

Gaku mumbled something before closing his eyes, ready to fall back to sleep. Yugamu hugged him tightly and kissed his neck, making his heart flutter. “Happy Birthday, by the way.”

Oh. He had completely forgotten about that.

Notes:

This was made as collaboration with @hundredtakumis on twitter!
Go look at their art!

https://x.com/hundredtakumis/status/2003203333398708644