Chapter Text
Hiro wasted no time at all in hopping on his computer and clicking on a bookmark that would take him to his favorite Bot-Fight locator site. He could hear his older brother, Tadashi, walk into their room after him, but the younger boy paid him no mind. Sure, he was grateful (if also a little miffed) to his brother for rescuing him, Just as he was grateful to their Aunt Cass for bailing them out at the police station when they'd been caught two hours before, after the last Bot-Fight. But that didn't usually happen, and he couldn't pass up such a thrilling opportunity to make money.
And that really was it. The thrill! That's what brought him back to these fights time and time again. He got off on them, on the adrenaline, the rebellion. The fact that he was better than everyone else in the 'sport.' The fact that he was too young to be allowed, but they let him do it anyway. The fact that it was illegal.
Surely it was natural, Hiro reasoned? He was at that age- 14- when he needed to act out. His hormones were going crazy and he had the need to rebel and do whatever he was good at, whatever gave him a pleasurable buzz that flowed through him, regardless of consequences.
It wasn't like he needed the money he got from Bot-Fighting. Not really. Sure, it was useful with his front of robotics, but it had been a long while since he'd had a big project that needed funding. Taking the money from other people was honestly better to him than the act of actually making the money. It was all about winning. Well, mostly. Just playing the game, beating everyone else, that would have been enough. But Bot-Fighting by itself wasn't illegal. Betting on it was. So that's where Hiro went. Everything circled back to the thrill for him.
While Hiro utterly ignored his brother behind him, Tadashi couldn't help but eye his brother from the head of their room. They'd just gotten home from a long night involving Hiro hustling a Bot-Fighting gang leader, being saved from that leader by Tadashi, getting arrested, and then being bailed out by their Aunt Cass. And yet there he was, wide awake and tapping away at his computer, though Tadashi couldn't quite make out the monitor from his current vantage point.
Hiro was clad in his usual ensemble. A T-shirt, red and black basketball shorts (due to the seasonal heat in San Fransokyo; it was impossible to get the boy anywhere near a real basketball), and his navy blue hoodie, worn more because of its comfort and security than any practical use. Much like the stuffed panda he slept with. Tadashi meanwhile was wearing blue jeans, work boots, and his Ninjas shirt. His customary grey jacket and baseball cap had been hung up as soon as he'd walked into the house.
Hiro hadn't even taken off his shoes upon walking into their flat, something customary for their family. That alone had piqued Tadashi's interest and made him follow Hiro upstairs, his boots still on as well.
"You'd better make this up to Aunt Cass before she eats everything in the café." Tadashi's voice from behind Hiro drifted through the younger Hamada's hazy senses. Hiro gave the slightest of nods, still transfixed on the screen before him as he continually refreshed the page, hoping for a new fight to show up on the schedule and corresponding map.
"For sure...." He said in an empty voice, eyes glazed. He reloaded the page again and spotted a new red pin on the map, marking the location of a new fight. A small smirk lit Hiro's face for a moment before he gathered control of it and wiped the look from his features.
"I'm serious, Hiro. You know how hard Cass works for us. The least you can do is go down and tell her how much it means. Maybe assure her it's not all for nothing?" Tadashi continued as he strolled up behind his little brother.
Hiro whirled the chair around to face his brother, trying to block the computer screen with his head and chair back. "Absolutely!" Hiro's lips quirked up in an innocent smile.
Tadashi saw right through the facade. He knew his baby brother too well to be fooled by such false innocence. And sure enough, as Tadashi peered pensively to Hiro's left he caught a snippet of the boy's computer screen, where a portion of a San Fransokyo map was visible.
"You're going Bot-Fighting, aren't you?!"
Hiro gave up the game immediately, the nerve!
"There's a fight across town," the young teen lept lightly up out of his computer chair, nonchalance in his voice as he strolled over to his work table to pick up his bot and controller. "If I book I can still make it." He shrugged and walked past Tadashi like it didn't matter.
"Unbelievable," Tadashi said in a disappointed and disbelieving voice. "Hiro, you're my brother and I love you, but you're a serious brat, you know that? Did you forget what happened tonight? You were about to be pounded into the pavement by Yama and his gang! You barely got out, and only made it because I saved you! And we still ended up arrested."
Hiro shrugged again. "Hey, that's on you. I know the back way out of all the fight locations. You're the one who drove us right into the handcuffs."
Tadashi set his shoulders back, bristling with anger at his brother's ignorance and arrogance. "Are you seriously blaming me for us getting arrested when you were the one who snuck to an illegal Bot-Fight?! This after I saved your ass?!"
"I just call it like I see it. Come on, 'Dashi, Yama was probably just gonna take my money, scare me a little, maybe try to steal my bot, which would have been useless since the controller is coded to my fingerprints. Anyone else trying to use it will get random actions in the bot from any signal they send with the controller. But it'd take a lot more than being hustled in a fight to make him mad enough to actually hurt a kid. I would've been fine."
"And you know that for a fact how, exactly?" Tadashi crossed his arms and drummed his fingers on his biceps.
Hiro rolled his eyes and scuffed his feet impatiently. "What, you think I decide to hustle random strangers and act on the impulse immediately? Come on, Tadashi, give me more credit than that. I graduated at thirteen last year. I'm not an idiot. I've been shadowing him at fights for a month now, getting an idea on him and twelve other fighters." Hiro gave a self-satisfied smirk.
"Alright, but don't you think being arrested because of you will make him angry enough to beat up a kid? What if he shows up to that Bot-Fight you're in such a hurry to get to?"
"Isn't he still in a cell?"
"Oh, geez," Tadashi rubbed his eyes disbelievingly. "For someone who claims to be smart, you can sure be really stupid sometimes. If we can get bailed out for Bot-Fighting by Aunt Cass then surely Yama can get bailed out, too. Or at least some of his men. And if he's holding a grudge he'll be looking for you. And where will he go to get info on that cute little scrawny kid who beat his bot and got him arrested? Gee, I dunno, maybe a freaking Bot-Fight?!" Tadashi threw his hands up in exasperation.
For one short moment, the smirk was wiped off Hiro's face to be replaced with a look of dawning comprehension, and Tadashi thought he'd won. But the look was quickly swept away in lieu of more nonchalance.
"Hey, I'm quick, small... I could lose them, easy!" Hiro made to skirt around his older brother, but Tadashi shot out a firm hand and grabbed Hiro by the wrist, jerking him back.
"Why the hell are you so eager to do this? Surely the risks outweigh any reward. I don't even see what the reward is for you if you're okay with Yama taking your money and your bot when he throws a fit."
"You really wouldn't understand," Hiro's whole demeanor darkened and he yanked his arm away, looking crossly up at his brother. He made to edge around Tadashi again, but the other boy slid cleanly in front of him, blocking the younger's way a second time.
"Then explain it to me. Make me understand."
Hiro swore under his breath and crossed his arms awkwardly, still holding his bot and its controller. "Fine, you wanna understand? Then I'll try. I'm good at it, 'Dashi. Really good at it."
"You're good at everything, though," Tadashi cut in. "Well, everything but organized sports."
"AND," Hiro rolled his eyes again, "and it's so much fun, 'Dashi!" He spoke with captivated fervor. "I mean it. It's always the most alive I feel! The thrill, the threat, the rush! I know I shouldn't feel that way, but knowing that just makes me feel it more. You said the risks outweighthe rewards. Well, for me, the risks are the rewards"
Tadashi felt an uneasy stirring in his gut at Hiro's words. One he tried his best to ignore and push down while he focused on Hiro's problem.
"Come on, Hiro," his voice softened, as did his face. Tadashi relaxed his shoulders and looked his brother in the eye. "You just said it yourself. You know you shouldn't feel that way. You know it's wrong. So just stop. It's better that way. No good can come of it otherwise."
Hiro sighed and looked away. "I told you that you wouldn't understand."
But that was as far from the truth as it could be. Tadashi understood better than Hiro could possibly know. He'd found himself facing an impossible situation last year when Hiro began to move into puberty. Of course, Hiro denied profusely that he was in puberty whenever the subject came up. But he'd started getting taller, needier and yet somehow simultaneously more detached. He'd begun spending more time under his covers and in the bathroom, usually with a phone or laptop and an auto-clearing search history. And he'd gotten cuter. The childish messy black hair and gap-toothed smile paired with a growing physique and teenage behavior had piqued Tadashi's interest early on and made him feel things he'd never felt for another person before. Made him want to do things with Hiro he'd never done with another person before.
And these feelings had scared Tadashi. The sheer wrongness. Hiro was fourteen, thirteen then, and his brother. But that fear, the understanding of the perversion only emboldened the feelings he had. It had gotten so bad that shortly after Hiro's 14th birthday when Tadashi had accidentally walked in on his little brother changing, he had dashed off to the bathroom to masturbate.
He hadn't actually seen much. Hiro had been in his underwear (white briefs). But it was enough. Tadashi had gotten so close to cumming, too! With his eyes closed as he first held the image of his mostly naked brother, bent over, in his head. But quickly that image had changed to a scene of Tadashi walking up behind Hiro, slipping a hand down the back of his underwear. Feeling the soft, plump cheeks in his grip.
Yes, he'd come within a hair's breadth of shooting his spunk all over himself at those thoughts. It would have been the first time he'd let the fantasy progress that far. But something stopped him, held him back. A strong sense of brotherhood and impropriety. The image of Hiro's wide, loving brown eyes was as much a barrier to Tadashi as it was an aphrodisiac. He couldn't bring himself to do it when Hiro was clueless, consentless, and had to remain so.
"Look, 'Dashi, I'm going out and you can't stop me." Hiro strolled purposefully around his brother, heading for the door. "One way or another, sometime tonight, I'm getting out. It might as well be now, save us both the trouble."
Anger flared inside Tadashi again, wiping away his unsolicited fantasy in a second. He whirled around and darted forward, wrapping his fit arms around the much smaller boy and holding him tight. Tadashi lifted Hiro off the ground with ease, gritting his teeth.
"H-HEY! Let me go! Tadashi! Put me down!" Hiro flailed his legs around uselessly. He managed to land a couple of good kicks against his brother's shins, but Tadashi just hissed softly and held on tighter.
"Drop the bot and the controller, Hiro," Tadashi kept his voice steady, even as the boy in his arms struggled.
"Bite me!" Hiro snapped.
Tadashi sighed. "Say what you like. But I care about you, Hiro. In deeper ways than you think. I'm not going to let you leave tonight. You could land yourself in the hospital, or worse. If anything ever happened to you, I don't know what I would do... So I'll make you a deal. You do as I say, and I won't tell Aunt Cass you tried to go to another Bot-Fight not five seconds after walking in the door tonight. Now, drop the bot!"
Hiro glared down but dropped his bot and the controller, aiming for Tadashi's feet. They clattered uselessly off his steel-toed work boots.
"You can't hold me like this all night, Tadashi," Hiro growled with venomous animosity.
"We'll see." Tadashi carried Hiro over to the nearest bed- his own- and flung Hiro onto it, then quickly pounced atop the boy before he could get his bearings, pinning his arms above his head by the wrist. "I don't even need to hold you all night. Just long enough that you miss the fight. An hour should do it, just to be sure."
Hiro fumed and whined out, still trying to squirm. His face was against Tadashi's bedding and he could smell Tadashi in it. The scent, a manly one of cologne, grease, and cut wood mixed with fabric softener, only emboldened Hiro's struggles. But with Tadashi holding his arms down and pinning his legs, his abdomen was all that would move. It pressed up and rolled against Tadashi's crotch, rubbing softly yet insistently. Tadashi's mind snapped onto this.
"You c-can't keep me from going out every night, asshole!" Hiro shot at a brother who was no longer putting his full focus on him. "This is useless!"
Tadashi shook his head, trying to clear it as Hiro's hips lowered again. "I can take this one day at a time, Hiro. You're right, I can't stop you every night. But when I can, I will."
Hiro growled again and tried to buck his hips backward, ramming his butt into Tadashi's groin in the hopes of setting off the sensitive area to slacken his brother's grip enough for him to worm free. It didn't exactly go as planned. There wasn't enough room between their hot bodies for Hiro to gather the momentum needed for his desired outcome. His ass just ended up rubbing more firmly on his brother's crotch instead of hitting against it.
"A-aahh!"
The sound slipped out before Tadashi could swallow it. He would have clapped a hand over his mouth if they weren't both busy restraining Hiro. Some small, hopeful, practical part of him had known this course of action would lead to this, to Hiro rubbing against him in a compromising fashion. He should have been more prepared. He'd daydreamed (and sometimes actually dreamed) about this all the time. Hiro below him, his perfect ass rubbing on Tadashi, both of them groaning. The difference was in those dreams they were both naked, and Hiro was happy. He'd always shut it down before he could go past the point of no return, though.
Tadashi prayed that Hiro hadn't heard his pleasurable gasp. That the boy had been too busy struggling or was too angry for the sound to register. But despite his arrogance, Hiro hadn't been lying about how smart he was. He heard the gasp and felt a shake start up in Tadashi's body when his rear pushed against his brother's groin, and put two and two together in an instant. Though he didn't yet realize how Tadashi felt about him, Hiro did understand that he could exploit the sensitivity of Tadashi's crotch to his advantage with pleasure rather than pain. The carrot over the stick~
He rolled his hips back slowly, teasing at his brother's crotch with his ass. Tadashi knew instantly that Hiro was onto him, but that did nothing to stop his mind from jumping straight into his forbidden fantasy.
Tadashi closed his eyes and let Hiro tease him. He couldn't help it. He might be nearly 19, but he was just as hormonal as he had been at Hiro's age, having never had a proper outlet or release for his desires, his sex drive. The teen imagined himself fully naked, thrusting his prodigious hard-on between Hiro's thick cheeks and into his fine form. He began to get stiff. The process moved quickly. In fact, he got hard much faster than usual. Fantasy was one thing, but Hiro was actually rubbing on him now. This was different. This was real.
As his cock hardened Tadashi moaned aloud and began to dry hump against his little brother. God... He's practically five years younger than me! He's my brother! But he's perfect. A real brat, but I love him. He's unbelievably sexy, too... Tadashi gave another needy groan.
"Mmnnaaahh~"
Hiro's eyes went wide. H-holy shit! That sound... What am I doing? But he continued to push his abdomen back, letting Tadashi hump against him. Soon enough he could feel Tadashi's erection against him, even through their clothes. Oh my God! I'm giving my big brother a boner! Hiro's face flushed hotly, and for a moment his head swam.
He expected to feel disgusted. With himself or with his brother, he wasn't sure. He only knew that was the proper, expected response. What he didn't expect was a familiar throb and jump in his heart. One he got whenever he snuck out to Bot-Fight! It was that same thrill, that rush of adrenaline at knowing he was doing something wrong. At knowing he was good at doing something wrong. Only this feeling was far stronger than any Bot-Fight he'd ever been in. He wanted more.
"T-Tadasssshhhiiiii!" Hiro whined out needily. The young boy focused on the feel of Tadashi's cock rubbing at his butt. He felt himself start to stiffen down below, too.
Tadashi shook his head and his grip on Hiro's wrists softened. "N-no... No!" He slowly stopped humping, leaving them both still save for their heaving chests. "I-I can't, Hiro... I'm so sorry! I love you more than anything, but I'm just as likely to lose you like this as I am letting you go...."
"Tadashi, you jackass!" Hiro tried to shoot a glare over his shoulder. "You stumbled onto the one thing that will make me stay willingly and you're chickening out after starting it!?"
"I... I don't... What?" Tadashi blubbered down at his brother. Hiro's face was pressed into the bedding, his back curving upward so his ass could press against his brother. And though Tadashi couldn't see it, Hiro was remarkably hard, slit leaking just as much precum as Tadashi was.
"Let me go," Hiro said in a trembling voice. He could hardly believe what he was saying, what he was feeling. But now that he'd started he had no real desire to stop. Quite the opposite, in fact. He wanted to push it over the line. "Get up and fuck me. As long as you're inside me, I won't try to get to that Bot-Fight. That's the new deal."