Chapter Text
No matter his peak physical condition, Madara was pretty sure he was having a stroke. He was about to die a disgraceful death: drowned in the onsen, naked, the warm water defiled by his blood. And it was all Hashirama’s fault because of course it was. Izuna had been right, they should never have made peace with the damned Senju.
Oh, gracious kami, please let him not pass out and pathetically drown while in this particular company.
Izuna’s ribbing would be merciless. He loved his brother, he really did, but Izuna was a pest. If Madara were to die now, downed by a nosebleed of all things, Izuna would take it all wrong and ruin their fragile peace by laying the blame at Tobirama’s feet - despite the other man being the one least to blame for Madara’s imminent death. The omega, who might cost Madara all of his higher brain functions but was just as thrown by his sudden exposure as Madara was. At least if the furious red eyes glowering over the mirror of undisturbed water was anything to go by (and how did he manage to keep his mouth and nose underwater for so long, that-)
“Hah,” Hashirama sighed contently and utterly ignorant of his brother’s ire and best friend’s tenseness. “Isn’t this nice? Yes, this is nice. Relaxing with my favourite people. Amazing.”
Madara felt his eye twitch as his temper raised, but before he could do anything about it, Hashirama suddenly went underwater and only came back up after the bubbles in his place had ceased to appear for a long moment.
“Tobi!” Hashirama gasped and whacked his chest to cough up all the water that got into his lungs. “What was that for?!” Tobirama appeared distinctly unimpressed, but the visible quarter of his face was enough to portray his contempt at his brother’s stupidity as the older Senju tried to catch his breath.
Madara was tempted to watch the brotherly dispute unfold, Tobirama’s wrath was always a pleasure to witness if it wasn’t aimed at himself, but considering their delicate situation, he was better off using the distraction to make his escape. As long as he was still able to with his dignity somewhat intact.
With an excuse ready on his lips, Madara started to raise from his position at the centre of the pool - it was as far as he did make it before he caught Tobirama’s distinctively omega scent lingering faintly in the air - with the teasing sensation of warm water running over his rapidly cooling skin at the front of his awareness.
But then, Tobirama’s eyes flicked over to him and- and they lingered. Trapped like prey faced with their natural predator, Madara paused midway under the heating gaze. He felt his muscles twitch and couldn’t help but notice how Tobirama’s eyes followed every movement under the expanse of Madara’s exposed skin with the same attention he used to reserve for battle.
For the life of him, Madara couldn’t suppress the growth of the deep flush that he’d managed to contain to his hidden ears so far, felt it bleeding down his chest. Sadly it wasn’t the only bodily reaction he couldn’t suppress. Maybe he could play the flush off as mortification for his spiking scent that he also lost his grip on?
By the gods, there was no way Madara would get out of here alive.
“What-“ Hashirama stopped in his dramatic flailing (honestly, what was a bit of attempted murder between brothers?) and tipped his head back with a confused twitch of his nose as he tried to phrase through the heavy scent surrounding them.
Yep, if he’d not succumbed to his mortification first, Hashirama would make sure Madara won’t have to live with the knowledge of today's events.
The knowledge that the Senju’s White Demon was an omega. Hells, as Izuna never grew tired of pointing out, Madara had been pathetically pining after the man despite thinking him to be a fellow alpha. How was Madara supposed to live with the knowledge that their dynamics would allow for a harmonious relationship between them instead of urging them to rip each other apart when hormones inevitably hit?
Trapped by Tobirama’s heavy gaze, Madara remained petrified even as the Senju emerged from the water himself, taking a deep, deliberate breath as soon as his nose was no longer clogged by water.
The immediate scent response made Madara’s knees go weak and let Hashirama restart his flailing with newfound vigour.
“Otouto!” he screeched, and Madara could see the moment Hashirama drew the connection to the earlier scent. All silliness bled away in an instant and left behind a man made of steel, an alpha that even Madara would have trouble staying his ground against. “Madara,” Hashirama growled darkly, taking a step towards his oldest friend.
Madara raised his hands in a placating gesture, even though he knew there wasn’t anything he could say to get out of this, nothing he-
A scourge of water raised to splash over Hashirama’s face and left him spluttering once again. He looked pathetically agitated like a drowned cat, and it took every ounce of the meagre self-control that Madara possessed not to laugh into his face.
“Otouto! What-?! He-“ Hashirama spat, but Tobirama cut him off with a look before he leaned back against the edge of the pool, comfortably resting his strong arms outside the water. It nicely accentuated his shoulders and collarbones, and the blatant display made Madara feel faint. The predatory intent in Tobirama’s considering eyes didn’t help either with calming down Madara’s triggered libido.
Tobirama looked as if he wanted to devour him whole, and Madara didn’t think there was anything he would do about it if Tobirama were actually to pounce on him in an imitation of the summons he was so fond of.
“Tell me, Anija, what exactly did you expect would happen when you took your alpha friend to join me, an unbound omega, at the onsen… especially since, as a healer, you should be aware of how close I am to my heat.”
There was a beat of silence before the words registered, and Hashirama lost all colour despite his natural tan, while Madara- well, it wouldn’t suffice anymore to call him flushed. He was sure if he were to activate his Sharingan, it would match the scarlet of his skin. (And, oh, wouldn’t that be an idea? Having the image of Tobirama as he was now - confident in his predatory intent - burned into his memory for the rest of his life, no matter how short Madara expected it to be after today… It would be worth it.)
“Leave us, Anija,” Tobirama ordered with a low hum, not wasting as much as a side glance towards his brother in favour of focusing his entire attention on Madara. His eyes dipped noticeably to the V of Madara’s hips, which was thankfully still covered by the dark water. Otherwise, Hashirama wouldn’t have had half the trouble to realise what was going on with his best friend.
“What- no! I-“ Hashirama cut off with an involuntary squeak when Tobirama briefly flicked his gaze over with nothing short but murder in his eyes. There was a long moment of absolute silence before Hashirama all but ran out with his tail between his legs. He didn’t even try to warn Madara off with a look, or maybe he did, but there was no opportunity for Madara to notice.
Not when he was absolutely enchanted by Tobirama’s casual display of ruthless malice. To send an alpha of Hashirama’s calibre running with nothing but a look, hng. Madara had always been weak to vicious competence.
“Now,” Tobirama purred, commanding Madara’s entire attention to himself. “Why won’t you join me back into the water?” Hungry red eyes traced the trail of goosebumps on Madara’s skin. “I’m sure we can get you heated up again real fast.”
Madara gulped. “I better-“
“Sit,” Tobirama drawled, voice silken and full of dark promise.
Madara sat back down.
There was no chance in hell he would get out of this alive. If Tobirama were actually to eat him alive, Madara would still only thank him for it. He was so, so fucked.