The Three of Us (Part Two)
Izuku’s hands flew up in immediate denial. “Kacchan, wait, it’s not what you—”
“Don’t give me that bullshit!” Katsuki stormed up to the two of them, stiff with fury. His red eyes seared into Izuku with such anger and betrayal that it made Izuku flinch back. “You’re my fucking boyfriend,” he snapped. “And what, I have to catch you KISSING fucking Halfie in the hall?”
To his shock, it was Shouto who answered, head lowered in guilt. “I’m sorry, Katsuki, I should’ve told y—”
“DON’T.” A burst of sparks shot from Katsuki’s fist. “Don’t say a fucking word to me, or I’ll blow your head off.”
Izuku’s heart thudded into his ribs. He didn’t want to see his two most important people fight. Not because of him. “Kacchan…” he tried weakly.
“Fuck you,” Katsuki growled. “Don’t try to explain it, Deku, because you can’t, you fucking piece of—”
“Don’t talk to him like that,” Shouto broke in, and Izuku’s eyes went wide as he stepped between them. Every part of him was coiled up, ready to defend himself if he needed to, but with a tiny pause; with a jolt, Izuku realized that Shouto didn’t want to hurt Katsuki.
Katsuki’s eyes flashed dangerously. “Get out of my way, half-and-half,” he ordered.
Shouto lifted his chin. “No.”
“Move, before I blow your fucking face off!”
“I’m not moving until you calm down and listen to me.”
Izuku squeaked as a flurry of gunshots sounded in the hall, the noise of Katsuki’s fists bursting with sparks at his sides. It was a clear threat and one that Izuku knew he’d make good on. Uneasy, he touched Shouto’s shoulder. “Shouto,” he spoke up softly. “It’s all right. Let me talk to him, you don’t have to do this.”
Without meeting Izuku’s gaze, Shouto shook his head. “No. This is something I’ve had to do for a while.”
“What the hell,” Katsuki snarled, bringing one hand up, palm outward, “are you talking about?!” This time, the walls seemed to shake as he detonated an explosion within inches of Shouto’s face. A blast of smoke and flame made it impossible to see, and Izuku ducked, sheilding his face. Coughing, he tried to squint through the black haze.
Gradually, the smoke lifted, revealing a jagged spire of ice looming over Katsuki. The ragged, splintered edges told Izuku that the ice had taken the hit instead of Shouto. Shouto had his arms raised, ready to fend off another attack if he had to. His mouth was set in a hard line. “Katsuki, plea—”
“Don’t fucking call me that!” Katsuki raged. He swept his arms out, setting off one explosion after the other. Shouto threw his hand up and gleaming walls of ice met each one, shattering on impact, but keeping him safe. For now, anyway. Katsuki kept coming, one thundering boom after the other ringing out in the hallway. “Don’t ever!” BOOM. “Fucking call me that!” BOOM. “Again!” Another rocking bang, and this time, Shouto fell back with the impact and into Izuku.
Gasping, Izuku caught him up against himself, hands braced on Shouto’s back. “Kacchan, please!” he begged, tears pricking his eyes and his voice cracking. He felt Shouto tense against him.
A loud gust, like the noise of a column of wind, overtook the hallway as a blast of heat made Izuku wince. Then he stared as Shouto’s left side lit up with bright tongues of flame, roiling above him like hellfire. His one blue eye burned like ice against the fire’s deep red. “Shut your mouth and listen to me!” he shouted, advancing a step toward Katsuki.
“Why the hell would I wanna hear anything you have to say?” Katsuki demanded, falling back defensively, but with his hands still sparking. “You expect me to pity you? Is that it? Poor little Halfie likes Deku, but he’s with me. You want me to understand why you pulled this shit?”
“No, of course not! I shouldn’t have done that, but that isn’t the reason!”
“I don’t give a shit about your reasons!”
“I like you both, okay!?”
THAT made Katsuki falter, expression going blank with shock. He looked at Shouto with lips slightly parted, as though his thoughts couldn’t catch up to what he’d just heard. The crackle of flames was the only noise in the lonely hallway. “…..WHAT?”