(Y/n) POV

Once I was done cleaning Levi's office while he sat, did paper work, and drank tea I finally got a bit of a break before he made me go to his bedroom.
"Sure is one way to get a girl into your room Captain."
I looked up at him since I was bending over to clean under his bed.
"Why do you keep calling me Captain? Brat" I tilted my head in confusion but I knew full well what he was talking about.
I hadn't called him Captain since I became one 3 years ago, granted he got the title first 4 years ago.
"What do you want me to call you? Master or daddy now, Captain?"
I teased as he kicked my thigh a little to signal me to get up.
I sat back up as he grabbed my shirt.
"I don't know what kind of games your playing but pissing me off isn't going to help you."
"Aw am I really making you mad Captain? I thought I was just being nice."
Looking at him with puppy eyes I tried to look as innocent as possible.
I grabbed his shirt in response once he let up on his grasp on mine. I pulled him close enough so our lips nearly touched.
"You know Captain, we have plenty of time before lunch if you want to make me help you out with your problem."
He blushed slightly since it seemed like he didn't realize I had noticed he had a hard on.
I tugged him behind me so he fell down onto the bed.
Crawling up to him I've never seen him look more flustered in my life.
I straddled him and ground down a bit on his bulge.
"See Captain? I can be more useful than just cleaning for you."
I tugged his shirt again so I could whisper in his ear.
"I know you don't like me but I just can't get over how hot you look when you boss people around."
I wrapped my arms around his neck now causing him to whimper slightly.
I found it kinda funny that basic seduction tactics even worked on 'Humanity's Strongest Soldier'.
At this point Levi tried to push me off him but failed clearly not trying very hard.
"Brat I know you're just trying to get out of cleaning. It's not going to work."
I traced my finger along his jaw then his lower lip.
"~Captain, who said I didn't want this? You just have to give me an order and I'll do as you wish~"
He didn't exactly give me an order but my lips crashed into his, the kiss felt desperate and passionate as I felt his hands start to rub my hips and ass.
Breaking the kiss I went to pull up my shirt as Levi watched. I decided to not wear a bra so as I slowly pulled up he watched my tits bounce when they came out of my shirt.
"Like what you see Captain?"
I grinned as I finished unbuttoning his shirt to slide it off his shoulders.
"Very much" he smirked.
He started kissing down my neck causing me to moan when he finally reached my nipples and started to suck.
"Ah ~ Captain~"
"Just say Levi brat." He snarled biting down a little harder.
I pushed off him starting to get impatient, I decided to take matters into my own hands.
I got up and started taking my shorts and panties down as I got onto him again unbuckling his pants and pulling them down.
His leaking member bobbed out and I was shocked. He was a lot bigger than I was expecting. I stared for a little when I was broken from my trance.
"Like what you see now?"
"Very much" I teased as I licked a strip up his member causing him to moan.
I ducked my head down onto him causing him to go down almost into my throat.
Moaning around him I watched as he leaned his head back groaning with pleasure.
I pulled off with a pop sound and straddled him once again.
"Ready Levi?"
I asked while I rubbed his leaking tip around my slit.
I slid down feeling every inch of him inside me I whined in pain and took a moment to get used to his size.
"F-Fucking hell you're big~"
As I started to bounce up a little he grabbed my ass to help with the motion.
"You're fucking mine now. Got it?"
"~Ah ~ Yes Levi ~ I'm yours and only fucking yours~"
With that I felt a slap on my ass, he pounded into me harder meeting my bouncing half way. I felt his finger dig into my thighs as I ran my nails up his back. I couldn't tell if I was drawing blood or not but the waves of pleasure I was feeling didn't allow me to care. Right now I needed him so badly, I moaned loudly feeling a pit in my stomach.
"~I'm going to cum~"
"Me too. Now cum for me."
With that we both came I tightened around him causing him to spill out inside me.
After a moment of just heavy breathing I looked up at him, 'humanities strongest soldier' actually looked cute in his fucked out state.
"I was right. You are very rough in bed Levi."
I giggled as he pulled out and flipped us over so he was on top of me, pinning me to the bed.
"You really know how to test me don't you?"
"It's pretty easy, but if making bets gets me fucked like that.... I'm going to be doing it a lot more often."
"You better not."
"You're saying you didn't enjoy this at all?"
I laughed watching him go red as I pointed down to all the hickeys I had down my chest and neck.
"Next time remind me to gag you." He looked away trying to sound annoyed.
"Oh so there's going to be a next time?"
"God is there anyway to shut you up?"
"I can think of a few ways."
I pulled him down kissing me passionately as I felt him grab my waist lightly.
*knock* *knock*
"Hey shorty it's lunch now! Get down here and grab (y/n) on the way down!"
Hanji yelled through the door.
"You still have to clean when you're done with lunch. I'm not letting you get out of our bet just yet."
We both started getting out clothes back on as I realized my shirt wasn't going to cover all the hickeys Levi left on my neck.
"Oh I know, looks like everyone's going to see how much fun we had though."
I motioned down my neck again.
Levi pulled me close to him again so his breath was on my neck.
"Good. I meant what I said before. You're fucking mine."
I got a shiver down my spin as he kissed my neck once again leaving another hickey and pulled away.
"And let me guess you want me to wear a maids costume when I come back up here to clean now right?"
"Only if you want to not be able to walk straight for a week."
"Maids costume it is!"
Levi smirked and dragged us both down the hall.
"What am I ever going to do with you?"