Chapter Text
The procedure for ending a case was the same every time. Turn in the intel, debrief, and, in Matt's case, beg for Allura's forgiveness. Shiro was the ever present witness to her lectures and threats, but seeing as he was the son of one of the founding members and a brilliant mind when he wasn't being a complete loose cannon, she kept him on every time.
"Now, I want to be perfectly clear, this behavior was unacceptable." Allura might not have been much taller than Matt, but in that moment, she positively towered over him. "And to ensure you get the message this time, Shiro is going to be taking you through his morning drills for the next two weeks. I know how much you enjoy jogging for two miles at 0400 hours."
Shiro barely restrained a smirk. "Oh, I'm happy to bring him along, Princess."
"Good. You're both dismissed."
Matt grimaced as he followed Shiro out of the room. "Two weeks? Shiro, please tell me you'll go easy on me and-"
"You know I won't. It's supposed to send a message."
"I'm only going to slow you down."
"I"ll make sure you don't."
Matt groaned. "Can't you just tell her I joined you?"
"She'd never buy it. I'm a terrible liar."
"You lie for a living."
Shiro glanced over at him. "Be ready to go at 4:00 sharp."
"Shiro..." Matt whined softly. "Have mercy. That's in three hours."
"Well, debriefing would have been over hours ago if you hadn't decided to set off explosives on your own."
"I'm sorry, okay? I-"
Shiro grabbed a fistful of Matt's shirt and pinned him to the wall, his voice low and laced with irritation as he spoke, "Sorry? We were almost caught. You could have put us both in danger all because you refuse to be part of a team."
Matt stared up at him, already wide-eyed and blushing, which seemed particularly embarrassing given that Shiro hadn't even kissed him yet. Not that he was expecting Shiro to kiss him or even wanted Shiro to kiss him. "I... I'm sor-" He cut himself off before he could repeat the same phrase that had gotten him into this position in the first place. "It won't happen again."
Shiro wasn't entirely sure why he was letting his anger get the best of him. Normally, he kept his emotions on a tight leash, but just hearing Matt whine and beg off a relatively lenient punishment pushed him over an edge he hadn't been aware he had. His lips tightened into a frown, and he shot Matt a sharp glare. "Won't it?"
Matt wrapped a hand around Shiro's wrist. "I really am sorry."
They both observed each other quietly, Shiro all but ignoring the sound of his own rapid and shallow breathing. Matt watched him, images of the last time he'd been pinned to a wall playing over and over in his mind. Images of Shiro grabbing his hips, tasting him, bringing him past the point of sense and straight to the point of letting go entirely. He licked his lips, and Shiro's eyes honed in on the motion immediately.
"Are you really?" Shiro asked, a rough edge to the question. His free hand gently gripped Matt's and pressed it to the wall. "Because this keeps happening."
"I know." Matt confessed, his heart racing more and more with each step Shiro took to close the gap between them.
"And I'm tired of cleaning up after you." Shiro's grip on Matt's shirt tightened, and he moved closer.
"Shiro-" Matt began as he was tugged forward.
"What is it going to take to get you to be more responsible?" Shiro asked.
Matt didn't have a ready answer. He knew what he wanted to say. He wanted to suggest that Shiro finish what he started outside the party just a few hours ago. He wanted to grind his hips against Shiro's and watch those dark eyes widen in surprise. He wanted to taste and beg...
But he was a professional. He couldn't go weak-kneed anytime he was pressed up against a wall by someone mildly attractive and taller than him.
"Shiro, I promise. It won't happen again."
Still, Shiro couldn't bring himself to let go. In fact, Shiro tightened his grip on Matt's wrist and frowned, searching those wide brown eyes for any sign that Matt was lying. Anger kept him tense and ready to shout or grab or kiss or bite-
Shiro paused, finally catching onto his train of thought.
Oh.
This wasn't anger at all.
His eyes dropped to Matt's neck, picturing the marks he might leave there if he was a little less restrained, a little more willing to break the unofficial rules about fraternization with partners. His mind filled with the sounds of Matt's whimpers, and each remembered gasp only made it that much more difficult to walk away. He didn't want to walk away. Not alone anyway.
Matt was quiet, ready to wait until Shiro backed down. After all, he didn't really have the leverage to push the much stronger man off, and he wasn't entirely opposed to how their thighs were pressed together and the way he could feel Shiro's chest rise and fall against his. His heart beat an uneven staccato in his ears, and Matt took a deep breath to steady himself. He had to keep calm. He had to stop imagining his partner grabbing his shoulders and pushing him down to his knees and-
Their eyes met, and something snapped. Shiro surged forward and kissed him again, his tongue quickly darting forward to take advantage of the way Matt gasped when they collided. While he was ordinarily controlled and calm in his actions, in that moment, Shiro couldn't possibly care less about protocol and unspoken rules and unspoken expectations. All he cared about now was tasting Matt again, chasing the sweet aftertaste of the party's punch and parting Matt's lips with just the right amount of pressure to encourage a breathy groan.
Matt jerked back and bumped the wall behind him when he saw Shiro move. There wasn't enough space to stop the inevitable, and all too soon, he was drowning in Shiro all over again. So much for being level-headed...or professional. His eyes closed, and he relaxed into the warm scent of Shiro's cologne. His back hit the wall, and Shiro's hand wrapped around his free wrist, releasing Matt's shirt and pinning his wrist to the wall instead. Matt whined when Shiro slipped his thigh between Matt's and leaned in to put a little pressure on a rather delicate area.
Shiro broke off the kiss with a dark smile, trailing kisses down Matt's jaw, nipping lightly at the skin as he went. Matt shivered, his hands straining against Shiro's hold, aching to touch. A low chuckle rumbled through Shiro's throat, rolling over Matt's skin as Shiro placed hot, open-mouth kisses down the length of his neck. "Shiro..." Matt gasped out. "Please."
"Please what?" Shiro whispered into his ear, his teeth teasing along the edge of Matt's earlobe.
"Please..." Shiro's thigh shifted, rubbing and teasing just briefly enough to coax a broken moan out of Matt. "Oh, quiznak, just don't stop."
"Wasn't planning to." He shifted and drew Matt into another deep, lingering kiss. Shiro took his time, languidly exploring every bit of Matt's mouth that he could reach. He could taste the lingering notes of his own drink from the party, and some small part of him delighted in the fact that Matt still tasted like him.
A door slammed open nearby, and they both jumped. Matt hardly moved, but Shiro stepped back, folding his arms over his chest and looking for the source of the noise. He tugged Matt into an upright position when footsteps drew closer, though he couldn't do much for Matt's flushed cheeks or dazed eyes or kiss-bruised, parted lips...
Focus, he reminded himself sharply. "Evening, Lance."
"Evening!" Lance chirped, sending them a wave. He paused when he saw Matt and smirked. "Sheesh, you two could get a room."
Shiro raised a brow. "You have no room to talk."
Lance looked away, blushing at the memory of Shiro walking in on him and Keith just last week. "Okay, okay. Still." He waved at Matt who was finally becoming aware of what his surroundings again. "Your family works here, too. You can't just-"
"You're just jealous Keith's on assignment," Matt murmured.
Lance gasped. "Rude!" He frowned. "Fine. Keep going, then. Have fun dealing with Pidge when she catches you making out by her room." Lance sulked off, and Shiro chuckled when Lance slammed the door behind him.
"I think you hurt his feelings," Shiro murmured.
"Sorry." He wasn't, and both of them knew it.
Matt smiled up at Shiro, relaxing a bit as his breathing evened out. Then, without warning, Shiro turned and gripped Matt's jaw, tipping his head back enough to expose his neck. Shiro bent down to kiss along the side, and just like that, Matt was gone all over again, his heart stuttering and his breath stuck in his throat. Shiro bit and sucked hard. Matt whimpered and gripped Shiro's arms, grounding himself while Shiro left behind a mark Matt vaguely realized he'd never be able to hide from his sister or father.
Finally, Shiro drew back, pressing a light kiss to the darkening skin. "You have two choices here, Matt." Shiro's voice was low and ragged. "Go to your room and pretend this didn't happen." Matt already knew that wasn't an option. He was ready to sell his soul for more of this. "Or you can follow me to mine, and we'll see how far we can take this."
Matt looked up at him, eyes dark and just slightly unfocused. He leaned forward and tugged Shiro into a soft kiss, not quite as heated or deep as Shiro's, but every inch as desperate and hungry. He pulled back and swallowed. "Lead the way."