Work Text:
Yugamu has always been fascinated by the paleness of Gaku's skin.
It reminds him of how corpses look when all blood has drained out of them, glowing with a life that is no longer their own, frozen in time until nature starts taking its course and returns them to the earth bit by bit. He had dissected countless of them, exploring, searching, and marveling at their beauty that, he used to think, was unmatched.
But the naked body beneath him is not dead. It's warm, delicate, and vibrant under his touch. It shakes, twists, arches, and digs into the bedsheets like it's frantically clinging to life. Yugamu feels it against him, and around him, its nerves and muscles blazing in unseen fire, pulsing and clenching and clinging on to him. He stares down at it and sees the shoulder blades contracting, the spine sticking out, the hips rocking back and forth along with his movements.
Even despite the flushed pink spots taking over, along with the bite and scratch marks haphazardly thrown all over the place like they were produced in a moment of subconscious madness, it still looks so, so pale. Its contrast with blood is stunningly clear, like black on white but perfect in every way. So perfect that he can not stop staining it with his filth.
The canvas named Gaku that Yugamu loves to paint on with his nails and teeth is more beautiful than any corpse he'd ever seen.
However, those blemishes will disappear with time, replaced with new ones that won't last any longer than the previous. Unless he cuts deeper into the flesh, he won't achieve a work of art that will stick. Claiming his lover with each round is fun and stimulating, but Yugamu has grown to become a greedy artist, and none of that feels good enough anymore.
Unfortunately, Gaku is scared of extreme pain. Yugamu watched him panic and fumble with his infuser every time they had to change into their class armor, and the same scene barely changed weeks later, as it's still the highlight of their transformation. Gaku's reverence for pain is admirable, but it clashes with Yugamu's irresistible urge to carve him up with his blade, and it became a problem down the line as their relationship progressed further.
Yugamu never lost hope, though. One day, he would be allowed to leave something permanent on Gaku, and maybe he would get one in return. A gift of love from each other that they'd be able to keep forever, even if death tore them apart. A symbol of what they mean for each other, and of course, something to remember the other by—infinitely.
It all came to a head a few hours ago, when Gaku approached him and nervously tugged at his sleeve to get his attention. He was blushing adorably, sweating and struggling to maintain eye contact as he uttered a few words... but those words were enough to shake Yugamu to his core and fill his heart with unbridled glee.
“Put your name on me.”
He'll never forget these words, ever.
Yugamu leans forward, his hands landing on either side of Gaku's prone body. The memory made his cock throb inside his lover, and sucking his breath in, he pauses for a moment before his hips stutter and restart their rhythm. Gaku is whimpering into the pillow, hugging it tight as he meets the thrusts with eagerness that he's still unable to express openly, but which Yugamu finds very endearing. Hungry teeth sink into the space between Gaku's neck and shoulder, leaving another wound that Yugamu will gladly clean up with a few licks as he savours the taste of blood that comes out of it.
“Hghh...! Yu... gam—aahhh...!” Gaku moans brokenly, turning his head slightly to where he knows Yugamu's face is, and there's a neediness in his voice that makes the latter want to bite him again. “I... aaahh, ahhh—... I, am-...!”
“Yes, Gaku?” Yugamu purrs, that first name rolling off so nicely off his tongue.
“I'm... ready,” Gaku says, holding the pillow with white knuckles. “Do it, Y-Yugamu...”
That's the most wonderful melody Yugamu has ever heard in a long time. The screams of all those he killed are nothing in comparison.
His face burns instantly. He bites his own bottom lip—so hard, the skin breaks.
“Okay,” he says, breathing heavily as he sits up and slows down his thrusts. He plants a light kiss on Gaku's hair. “I'll do my best to be quick. I promise.” Sitting on his knees, he gently traces his hand over Gaku's back, stroking along his spine. “Bite the pillow if you must.”
Gaku nods, holding the pillow closer. Yugamu can't see it clearly, but he just knows his cute lover is biting on it. Good boy.
After taking a deep breath, he reaches for the scalpel with a trembling hand.
The target is Gaku's lower back. It's a difficult spot to look at for Gaku himself, but it's easy to cover up and is particularly erotic when the two end up in their current position. Yugamu licks his lips as he grins madly, placing the flat of his blade over Gaku's pale, yet heated skin, and causing violent shivers from his lover.
“H-Hurry up already, you pervert!” Gaku complains, with his mouth full of pillow as he fails to stifle a gasp.
Yugamu giggles. “My bad. I'm just a man in love.” He places his free hand on Gaku's hip, keeping him still, while his scalpel navigates through the smooth, perfect skin underneath, until he finds the spot he wants to start with.
“I'm counting up to three so you can brace yourself.” A few beats, and then, “One... two... three.”
The first incision is the hardest to apply. Gaku is startled even with the count done, screaming into the pillow, and the quaking makes it hard for Yugamu to keep his hand steady. Especially when his cock is still inside, and the squeezing of muscles going on from within are all too pleasant for him to deal with. Regardless, he resists it and strokes his lover's hip, watching as a rivulet of blood gushes out of the fresh wound. It's so beautiful, he stays mesmerized for a good few seconds, but quickly snaps out of it. Not now, Yugamu. You promised to be quick, remember?
From the second incision on, the reactions mellow out a little, although the screaming and whining won't diminish—let alone the clenching. A big part of Yugamu wishes he could witness the absolute agony in Gaku's face, for some added arousal, but that'd be hugely distracting on its own and he's got a job to do.
More blood seeps out each time Yugamu digs his scalpel in, but the amount isn't concerning enough for him to stop yet. Once the first kanji is done, he pauses, choking up a moan as the embrace of Gaku's insides briefly wraps him up in lust-induced euphoria. Before he falls completely victim to pleasure, he steels himself and sets the blade back into the flesh.
Gaku stops screaming during the process, but he's still moaning and still so tight and wound up, almost tearing the pillow apart as the last strokes of the second kanji are done. Yugamu pauses again to reach for Gaku's head and ruffle his bowlcut, messing it up some more. “You're being so good. I'm proud of you, Gaku, my dearest.”
No response comes out except a few sobs, but Gaku's body reacts to the praise with another shiver and another squeeze, and Yugamu lets out a snort of amusement that masks his urge to moan in delight. He settles on the last kanji, each line staining the immaculate skin red and smearing it around. Only a few strokes left. Almost done...
As soon as he makes the last incision, Yugamu feels it. Everything he suppressed returns at once, striking him dead in the center between his legs. He barely has the time to admire his work, or even put the scalpel down, before he ends up doubling over at the sensations coming from Gaku's insides keeping his cock in a chokehold. He can't last long this way, and honestly, after everything that happened? Maybe it's the best way to wrap things up.
“Gaku, I'm close...!” He stabs the scalpel into the mattress without thinking, and then desperately wraps his arms around Gaku's waist as he moves his hips again, harshly slamming into his lover and allowing his brain to empty itself from useless thoughts except Gaku and his body and his smell and his blood flowing out— “Ahh, aaahhh—...!”
Yugamu cums, also marking Gaku from the inside. He slumps on top of him and catches his breath in a few big gulps, riding his high for as long as he can while holding Gaku tenderly. His heart is racing, pounding his ribcage like it wants to break free from it; a painful feeling, yet one of the best he ever had, making him smile against Gaku's back.
Some bit of clarity returns to him, and he realizes that maybe he was selfish in only chasing his own pleasure. He props himself on his elbows, nosing the nape of Gaku's neck. “Sorry, did I leave you behind? Allow me...”
“Wait—” Gaku gasps when Yugamu reaches down to touch his cock. Much to the latter's surprise, the bedsheets are heavily stained in cum and what comes to his palm is nothing more than softness. “Ahh...! Don't-... hnngh...!”
“You already finished?” Yugamu asks, pulling his hand away to see the load of white sticking to it. “Since when?”
“Ugh... I don't know, okay?” Gaku snaps, sounding embarrassed as he hides his face in the pillow. The tips of his ears are dusted in deep red. Yugamu blinks, recalling the moment he felt like he was being squeezed to death, right after he was done marking his lover.
A wicked grin splits his face.
“So you like pain after all, don't you?” He holds him tight again, peppering kisses over Gaku's neck and between his shoulder blades. “For the love of murder, you're the cutest thing! I love you so much!”
“Shut up!” Gaku bristles, but he doesn't confirm or deny that statement. Yugamu will take it as a yes.
The kisses don't stop, landing down Gaku's spine as Yugamu withdraws and pulls his spent cock out. Only when his eyes drop to the new mark does he pause, admiring the results of his work.
Omokage Yugamu.
Some of the lines are jagged, some are more shallow than others, but that's fine. He can fix it later on, make the scar prettier just like a tattoo, in his own personal style. He will pour as much of himself into Gaku as he can get away with, because he owns him now. Gaku is only his to look at. It doesn't matter how many people will learn of the mark, as long as the two of them do.
He can't resist lapping the drying blood clean, humming happily as he enjoys the delicious taste and the smoothness of Gaku's perfect skin under his palms and fingers.
It goes on for a bit, until Gaku stirs and nudges Yugamu off him, rolling to his side.
“Yugamu...” He's quiet, but his tone suggests pleading as he stretches his arm out. With his face in full view, Yugamu sees his big red eyes staring at him pitifully, the tear streaks on his reddened cheeks, his bangs dampened in sweat and sticking to his forehead, the snot leaking from his nose, his bottom lip quivering as bits of drool dribble from his chin. He looks properly disheveled, ruined, his voice babbling in the pathetic way Yugamu loves too much. “It hurts...”
Oh, sweetheart. Yugamu's chest swells and he feels his soul melt at the scene before him. He immediately moves, crawling back towards Gaku and lying on his side as he collects his lover in a gentle hug and starts planting tender kisses all over his face, ears, neck, hair, and wherever else he can reach.
“I'll give you something to calm the pain,” he says softly, petting him and kissing his forehead a bunch of times. “Would you like me to get it now?”
He asks the question that way for a reason. When he feels Gaku wrap his arms and legs around him, clinging to his body like a lifeline, Yugamu stifles a laugh. Not even pain would make this needy puppy want to separate from his owner for even one minute. It's so unbearably cute. No man should be able to hold so much cuteness in him.
They stay entangled like this, barely moving. Yugamu strokes Gaku's hair, and Gaku presses his nose into Yugamu's collarbone like he wants to hide inside him and never come out again. As a small wave of exhaustion washes over him, Yugamu has a random thought and decides to voice it right away. It's easy to say things when you don't have a filter set in place.
“If you ever feel ready to return the favor, I would like you to mark me...” He pries one of Gaku's hands off and gently places it on his chest, where his heart resides. “... right here. I don't care if the others notice it. I'd be glad to be seen as yours, too.”
He gets silence from the other end, Gaku's face still hidden away. Maybe he said too much. It'd be shameful if he's just ruined the mood, but it wouldn't be the first time he pisses his lover off with his thoughtless choice of words. He waits for the angry outburst and refusal, closing his eyes.
But what comes next is just the almost imperceptible twitching of Gaku's fingers against his skin.
“... I'll think about it.”
Yugamu sighs, so happy he could cry. It's not a fully positive answer, but it's good enough for him.
More than good enough.