Author's Note:

I love enemies to lovers trope, so here we are, lol.

Summary:

Frank wants to hear Matt's beautiful noises.

Words: 1,300

Matt's POV:

"Matt," I heard a deep voice say from behind me along with a whistle to get my attention. I felt my ears perk in the direction as I heard shuffling footsteps. "Castle?" I said with a questioning tone since I was still unsure if it was him or not. "Hey red, what are you doing here?" He said in a tone that was dark. "I'm here for Alka," I said as I turned in the direction his voice was coming from. No response from him, but I could hear his breathing hitch like he had taken a deep breath in all of a sudden, and then stopped.

"Frank, what the hell did you do?" I asked, raising my voice as I bawled my hands into a fist. "I swear to god if you killed him," I said as I took a step closer so he would understand my anger. "Ha, sorry, red. I really am. Didn't know he was yours," he said with a little chuckle.

I could hear him getting closer, and I could feel my heart race. This wasn't the best time now for these types of feelings to come to light.

"Shit Castle, what am I going to do now. He was my only lead, " I said as I grabbed the bridge of my nose with a groan. God, he really gets on my nerves sometimes. "Aw, don't be so mad, doll," He said, now standing behind me. "How the hell?" I said, whiping around quickly. I couldn't understand how he did that. He was the only one who was able to sneak up on me. I really should stop letting my guard down around him. He didn't respond, but I could hear his breathing. He was closer now, too close for my liking.

"Back up, Castle," I said with a warning tone in my voice as I took a step back, trying to get as far away from him as I could. I couldn't tell where he was exactly, but I could feel the heat radiating off of him. "Are you nervous red?" He said in a whispered tone now in my ear. I took a swing as I back to where the whisper came from. Pain shot up my arm, and I could feel the wetness of the blood pool in my glove as I made contact with the wall. I let out a hiss through my teeth as I pulled my hand back, now cradling it in my other hand against my chest.

"That looked painful, baby," Frank said as he pushed me face first into the wall. I could feel him pressing against my ass as I let out a quiet groan under my breath. Shit my head was spinning. What the hell is going on. "Don't call me that asshole," I said with a snarky tone as I hid my face into the wall. Even with this mask on, you could probably tell that I was a beat red blushing mess.

"What are you hiding under all this?" Frank said as I felt his cold hands make their way under my suit. My skin was on fire as he roamed his hands up and down my now exposed skin. I bit my lip hard, fighting back a moan as his fingers ghosted over my nipples. God, if he wasn't pressing against me and holding me still, I swear I would've been on the floor on my knees by now with the way my knees just tried to buckle.

"Shit, Matt, pull yourself together," I said to myself under my breath. "What was that?" Frank said as he pushed his hips hard against me, causing his dick to grind against my ass. "Mmm." A moan escaped as I threw my head back a little. "Fuck. You weren't supposed to hear that," I said as I put my forehead back against the wall. I could feel my nails trying to scratch through the wall. God, I needed an escape.

"Aww, but I did, and I liked it. I want more," Castle said with a dark tone in his voice. "Not happening," I said with a little chuckle. "Bet," Frank said as he grabbed my hips. That was definitely going to leave two hand shaped bruises there tomorrow.

I could feel my legs shake, and my body rock against the wall as I let out noiseless gasp for air. I could feel my dick slightly rub against the wall as Frank dry humps me from behind. I could feel blood drip from my bottom lip as I tried to keep quiet. I didn't want to give him the satisfaction of hearing me. Getting what he wanted. But by all means, this felt amazing. I didn't want it to end.

My head began to spin as I threw my head back again. My mouth was gapped open, and I could feel the drool wet the inside of my mask. "You're very pretty looking like this," He said as he snaked one of his now free hands around my neck. I could feel my head rest against his shoulder as Frank continued his pace.

I felt like I was going crazy. My hands were sweating, my nails scratched the wall, and my tongue was sticking out. With every thrust Frank took, I could feel my pants getting soaked with precum. "There's the noise I wanted," Frank said as I finally let go. All the maons I was holding back just came out of my mouth, and they wouldn't stop.

"P-please ah ah Frank please I need to cum" I said begging, throwing all of my leftover dignity out the window. He let go of my neck as he unzipped my pants, slipping his hands into my boxers. "S-shit," I said breathless as he gripped and stroked me up and down. My legs were shaking, and I felt like I was going to burst. "Please," I said with a whine as he slowed his pace and thrusting.

"What's the right words, doll?" Frank said as he slowly moved his hands and hips in sync. God, he was going agonizingly slow. "Please, sir," I said with a little moan at the end as I swallowed my pride. "Mmm, good boy," Frank said as he fastened his pace with his hand, and his grinding. "You can cum for me darling" He said as he started to let out his own groans. I could tell he was close too.

I felt my eyes roll into the back of my head, and everything in my brain went blank. I couldn't speak just letting out relentless moans as I released. I could hear Frank let out one last groan as his hips bucked one last time, and he buried his head into Matt's neck, breathing labored, and he was panting.

"Castle move. I can't breathe," I said as I tapped his arms that were wrapped around my torso. "Ugh, fine," He said with a hint of annoyance. "Can we do this again?" Frank said as I heard him lean against the wall next to me. "Maybe," I said in a whispered tone with a smirk as I ghosted my hand against his chest. I could hear his breathing hitch again as he let out a little shudder. "What do you mean, maybe Matt?" Frank said as I walked away. "Matt?" He said louder as I kept going just laughing as Frank let out little curse words under his breath.

"Oh, we'll definitely be doing this again," I said to myself with a big grin plastered on my face as I fixed my suit.

THE END