#rex splode invincible

Summary: Rex had offered to “help” you out after you broke up with Mark. So, now you’re at his door at 2am.

Pairing: Rex Splode x Fem!Reader

Warnings: MDNI🔞, Smut, oral (male receiving), PiV, cûmshot mentioned, profanity

A/N: This is my first Rex fic. We love Rex over here. He’s so cocky I love it. I also need him carnally.

Anyways, the reader is implied to be part of the guardians and has powers but it’s not specified what kind so go crazy. Also, Mark kinda sucks in this universe.

(Part 2 here)

You didn’t know why the fuck you were here.

This was just so stupid.

You broke up with Mark a month ago and you were having dick withdrawals a week in.

Rex noticed when he saw you looking stressed one day and joked about “helping you”, but you just told him to piss off. Called him a man whore and to get out of your face.

He laughed and just told you that you knew where to find him.

Whatever.

Right?

Okay, then why were you here? Knocking at his door at fucking 2am? In a long tshirt with no panties on?

You couldn’t even answer when he opened the door and you really couldn’t say anything when he stood there smirking either. Hell, you wanted to slap him and run off, but who were you kidding. At this point, a dick is a dick.

“So……” He started. You could tell he wanted you to admit you needed him.

You weren’t gonna beg.

He looked half asleep, hair down which was a rare slight in itself, and loose pjs that just consisted of a shirt and shorts. The hair being down though almost made your heart skip a beat.

“So, nothing. Let me in.” You muttered, but he didn’t move.

“Nuh-uh! Tell me why you’re here baby.” He teased while he crossed his arms and leaned close to your face. You just wanted to slap him. So, so bad.

“Rex. Let me make this clear. I’m not gonna beg you, and you should be happy i’m even considering this shit. Don’t make me change my mind.”

He scoffed and stepped aside. “Fine. But don’t forget you came to me.”

You walked in his room as he closed the door and immediately took notice of all the empty soda cans, dirty clothes and posters of half naked women on his walls. And then the smell of weed hit your nose. You knew robot would freak if he saw the state of this room and almost giggled.

“Um, your room sucks.” You say dryly. You wanted to avoid jumping to the point on why you were here, but you could tell you wouldn’t be able to stall for long with how he was looking at you.

“Wanna know what else sucks?”

You almost didn’t answer. But out of curiosity…

“What.”

“That mouth in a minute.” He smiled a shit eating grin. Your heart fluttered but you ignored it.

“Die.” You spat and immediately pretended to get ready to leave but he stopped you.

“Okay, okay…I’m sorry. Dick move…wrong kind of dick move anyways.”

“Stop with the jokes Rex. Are you gonna be serious about this is or not?”

“Yeah, yeah…”

You stood by his bed and looked around once more. You wondered if it would really be worth it. You prayed it wouldn’t cause Rex to get the wrong idea too. You guys were just friends. Just friends…

“So…you probably know why i’m here…”

“For a dick appointment.” He said smiling again.

You rolled your eyes.

“This means nothing. I swear it Rex.” You pointed at him to make a point and tried to look stern, but, god, you’d be lying if you said you didn’t want him to hurry up and satisfy this itch inside you.

He didn’t say anything for a minute but just kept smiling.

“Rex!”

“I know, geez. I won’t tell anyone.”

“Well, swear it then. Or you don’t get this. I don’t care, I know you’ve been trying to fuck me since forever.” You sighed. That last part was a fib. You didn’t know that but it sure felt like it sometimes.

“I swear I won’t tell anyone. And, i know it doesn’t mean shit when we’re done.” He dramatically expressed, hand on his heart and all.

“Just sex?”

“Yup.”

“Okay….” You sighed.

Now this is the awkward part…getting to the sex.

“Soooo…”

“This was your idea, dude.” You crossed your arms and looked at the ground. Looking into his eyes were impossible now.

He shifted towards you, but you still refused to look at him. Once in front of you he put a hand on your shoulder so you could kneel in front of him and suddenly a strong hand lifted your head and you were looking into his eyes once more. They looked different oddly enough. Already clouded with lust. Who was this?

“I think we should put this pretty mouth to work first…”, he mumbled softly. His gazed shifted towards your lips as a finger slipped inside and honestly who were you not to suck it? At this point why not?

It was hard to ignore his growing bulge especially when it was right in front of your face. It was harder not to palm it through his loose pj shorts.

You started sucking his finger eagerly as you looked into his eyes. The more you rubbed his clothed cock, and the more he bit his lip and groaned.

He pulled his finger out of your mouth slowly, and you let a “pop” sound out. He didn’t take his eyes off of you while he moved to pull his shorts and boxers down simultaneously. His gazed shifted towards on you was heavy as you proceeded to yank off your shirt to reveal you bare chest to him. Really it was all of you that was bare since it was the only thing you had on. He groaned.

He stroked himself slowly to the sight. “Fuck.”

“You like what you see?” You teased cupping your breasts.

“Are you kidding me? When wouldn’t I?”

You giggle as you leaned forward to wrap a hand around him. He fits in your hand almost perfectly, nice and thick. A prominent vein runs up the side beautifully and his flushed tip is already oozing with pre.

“I hate how pretty your dick is.” You whined before licking the underside slowly. Then you licked and teased his tip a bit earning you a delicious, deep moan. Rex never responded to this but a hand held the back of your head as you started to suck gently. You wasted no time blowing him just to hear him more.

If you knew this is the only way to shut Rex up you would’ve suck him off ages ago.

You started to deep throat him over time while you rubbed in his thighs. Your jaw was starting to ache after a while and your throat was tired. He was big enough to hit the back of your throat each time.

You looked up at him a few times and each time he was looking right back at you. Face reddened, but his eyes filled with hunger and desire. He watched you intensely as you tried to give him the best head ever. He watched as spit dripped from your chin and how your pretty eyes watered.

This ordeal didn’t last long. He started to damn near face fuck you as he got closer to finishing, and you had to pull away. You felt him twitching in your mouth and after being with Mark you knew it meant he was going to finish very, very soon.

“Hey, I did not agree to swallowing cum tonight.” You blinked at him. He just groaned, most likely out of frustration, but said nothing.

You got on the bed and you both moved silently. You noted Rex’s lack of immature jokes and jabs since starting this. His new serious persona almost gave you butterflies. You’re were so used to him just cracking jokes, but now…now he’s so focused on you. All of you. The way you moved. The way each curve of your body was on you.

His bed creaks as he gets on top of you. A quick wet kiss is pressed against your neck then another on your collarbone. He kissed you like you were fragile. Big hands hold you in place on each side of your hips.

“You ready?” He asked huskily.

You felt heat rush to your face as you realized what you were about to do. His warm body caged you in and his half lidded eyes anchored down on the soft messed up sheets on his bed. He truly was eyeing you down like you were some goddess. Something divine. He made you feel seen in a way Mark never did and it was weird. You didn’t even like Rex, hell he annoyed the fuck out of you.

But something about him now…

You just nodded and wrapped your arms around him. You felt him probe against you and you mentally prepared yourself though your head still swam. You felt as he inched in slowly. A sigh left both of your lips. Fuck, you needed this.

He gave you a second to get used to him and his size. It’s been a minute. 5 weeks and 3 days to be exact. You couldn’t stop looking at him though. While the eye contact felt intense there was something about him that was different and you couldn’t pin point what. Not yet anyway.

He started moving again a minute or so later after you gave him the go ahead. His hips immediately found a good rhythm as he thrusted into you at a deep but steady pace. You were already a mess. You felt every inch of him once he bottomed out and it felt like heaven. Moans escaped your lips over and over with each slam of his hips. This was a fucking a girl would fantasize over.

You back was arching minutes in, forcing your chest to press against his. Both of you were sweaty and aching but driven by pleasure. His pants and quiet whines fill your ears, making your pussy clench around him. Swears come out and your name falls from his lips like hushed prayers. The sound of him sliding in and out of you only get slicker, wetter, as time went on. It almost wasn’t enough. You didn’t just want him in you, you wanted him in your soul. But that was something you’d take to your grave.

He suddenly pulls out of you flips you over so you were on your hands and knees now, a hand pushing on your back so your ass arched in the air. You whined as a finger teased you.

“Beg.” A quiet, deep voiced command. You bit your lip. You hated how he sounded and how bad it turned you on. How one word made your thighs tremble and your hole clench around nothing.

“Pl-please, Rex.” You whined softly, eyes flicked over his toned body. “Please, please fuck me. Take me. I need it. I need you. Rex…”

A growl. Almost animalistic.

This just couldn’t be Rex anymore.

Regardless, he’s satisfied with your begging and pushes in. It’s even better than went he went in the first time. The new angle has you open mouth moaning. You started getting too loud, breaking an unspoken rule between you two since obviously others were in the building and could hear, so he pushed your face into the pillow. And fuck, did it reck of him. A slight hint of musk, ash, weed, and axe body spray.

His hands, still on the sides of your hips, grip tighter. He was close.

This thrusts were sloppier and he was chanting your name a million times. He kept saying how good your pussy was, how he loved the way your ass moved when it met him. Other murmurs of loving this….you? You probably heard that last part wrong. Head in a pillow and all. But who cared what he said as long as he didn’t stop. You never expected him to fuck this good. Never.

Your orgasm has been creeping up on you. Slowly, like the way a predator stalks prey. And just like when it catches the pray, sudden and quick, that’s exactly how you came. You let out a muffled loud whine from the pillow to warn him and he encouraged you to “cum all over his big, fat cock”.

You weren’t going to argue.

You shook hard and clenched him harder. You body locked. You haven’t came this good and ages. Rex continued to fuck into you but more sloppily. Your body was still shaking from the aftermath when you felt him twitch inside of you. Part of you prayed he didn’t finish inside.

“Fuck, fuck—please, fuck, ahh~” He breathed.

Quickly, he pulled out of you and you felt multiple hot spurts of him meet your back and ass. It was all over you. He came with another growl followed by obscene swearing.

“Holy shit.”

You fell on the bed after all was done. You just couldn’t hold yourself up anymore.

Finally, after you both caught your breath, he wiped you down with some piece of clothing. Probably a shirt. You lifted your head from your pillow to see it was fucking yours.

Okay, the mood was killed.

“Rex-” you whined tiredly.

“What?” Rex smirked still almost hungry. “You won’t be needing it anymore tonight anyways…”

You wanted to ask what the hell that meant, but you were still catching your breath. Your heart still was beating frantically from the height of what just happened.

He finally laid down with you as you rolled on your back, still processing the fact you just fucked Rex. Because you needed dick that bad. And of top of it all, you enjoyed it like crazy.

“Soooo…am I good or what? Better than Mark? Hmm?” Rex said in his usual playful tone. He laid a hand on yours gently. You didn’t know what it meant, what it could mean now.

“Ugh, shut up.” You gave him a weak laugh, wincing a bit from soreness as you sat up a bit. He laughed back. It was warm. Full of something you couldn’t explain.

You guys sat in silence for a bit. Still naked and clammy. Rex was notably still half hard and you wondered how he wasn’t tired yet. You wondered what this meant for him, sure it was silly because he probably didn’t care, but what if he did? What if you did? There were looks he gave you that did not say “Hey, I’m just fucking you as a favor”. No. It said something deeper. Something he was probably too scared to say, and something you were definitely even more scared to hear.

The drama if you two got together. Especially, this close after breaking up with Mark. The idea of it…it genuinely almost made you sick.

But you noticed how he’d look at you sometimes. When you looked down because Mark bailed on another date, he lifted your spirits with his usual jokes and had that look in his eye when you finally laughed. Or when you got hurt to the point of ending up in the hospital. He was there, by your bed, with that look again. Something soft. Something yearning. Desire. When Mark left, he was there. Always there.

So, when he jokingly pitched the idea of “a dick appointment” to you after you broke up with Mark part of you wanted to throw up. He said it would mean nothing, no strings attached. Just a friend helping a friend. Heh, yeah..

You looked at him quietly in the dim room. And, you finally really looked at him.

He looked at you the same. The smirk was gone. His expression unreadable.

A seed was planted tonight and you were terrified of what it will bloom into.

masterlist

ft. Mark Grayson, Cecil Stedman, Rex Splode x male aligned reader

rex splode x gn!reader

wc: 876 // based on this request 🔞 maddie's scribbles: dare i say, that it's actually a leftover from rextober?

Something pokes your thigh, waking you up. You open one eye, your eyelids still heavy with leftover sleep, and see the early rays of sun seeping into the room through thin curtains. You reach behind to check what’s touching your leg, and, of course—how could you’ve not known—it’s Rex’s morning wood. You close your eye and smirk, turning onto your other side.

He’s still asleep, mouth gaped, face soft and peaceful—something very rare with him. You graze his jawline, feeling the poking stubble underneath your fingertips. He moves his face towards your touch, still sleeping, but you quickly take your hand away. A better idea pops into your head.

⭒ Masterpost ⭒ 03/25/2026

⭒ Comic Books

⭒ Mark Grayson / Invincible ⭒ Part 02

I miss my boy ｡°(°¯᷄◠¯᷅°)°｡