I OWN NOTHING! So, something really important for me with this ship is that nothing changes when they enter a relationship. Like, they have sex, but they're not touchy-feely, they're still assholes to each other while being 100% supportive, and trusting each other entirely. Eggsy doesn't get more protective of her, he doesn't do anything cliche to help her during a mission. Likewise, she doesn't get more weepy when he gets hurt or anything. Nothing changes except for the fact that they kiss while making breakfast. They still see each other as friends and agents first. The bromance doesn't get broken by the romance if that makes sense. Also, a note on my headcanon: they're roommates at this point, with a no-bringing-people-home rule for security reasons.

5 years later

"You're late Gal," Roxy says, smirking at him as he enters the room.

"At least I'm not tracking in evidence Lance," he replies.

Roxy narrows her eyes at him, then pulls a mirror out of her bag.

"Shite!" she mutters, and puts another coat of makeup over her hickey while Merlin briefs them on the mission.

The two of them stride out of the room a few moments later, Roxy muttering about how they were not supposed to be on call this weekend.

"Tell me about it," Eggsy answers, "I was with a lovely gal who thought my name was Sean."

"Are you ever going to stop rotating through the Bond actors?" she questions as they arm themselves.

"As soon as you cut it out with the literary heroines."

Roxy sighs in defeat.

"I was Alice. Chinese for dinner when we get home?"

~Kingsman~Kingsman~Kingsman~Kingsman~Kingsman~Kingsman~Kingsman~Kingsman~Kingsman~Kingsman~Kingsman~Kingsman~Kingsman~Kingsman~Kingsman~

"What were you thinking! We had orders to check ONLY the downstairs and to call Merlin if we needed to go up!"

"So I skipped calling. So I went upstairs right away. I got the information! You could congratulate me on being the one to actually find the filing cabinet!"

"And we left an extra dozen bodies behind!" Roxy retorts, dialing the take-away restaurant and snapping out their usual order.

"We didn't leave them! They got whisked away by the magical powers of the Kingsman! And you know as well as I do that they must have needed those files something crazy to call both of us on an off weekend!"

"If you'd have called, they wouldn't have needed to be whisked away, and we could have gotten past them more efficiently with Merlin hacking through the codes on the doors instead of holding people at gunpoint. God Eggsy! Five years of this plus the military and you still can't follow orders!"

The doorbell rings, startling them both. Roxy storms off to get the food, and when she gets back to the kitchen Eggsy is rummaging around in a drawer for something.

"What are you mucking up the drawer looking for?" she questions, trying to keep her voice calm.

"Chopsticks. Napkins. Something."

"All in the bag. Fucking water glasses could have been useful if you wanted to do something right." She replies.

It's mean, but his insistence on charging ahead at the mansion without checking in had led to them being airlifted out instead of driven. She's been mostly over her fear of heights for a while now, but she'd take driving over flying any day and she's pissed that they'd had to do the latter because Eggsy couldn't stand being subtle. He's now standing at the other end of the table with the glasses he's filled.

"Bring them closer," she barks, something in her head noting the irony of giving him an order when she's just lectured him for never taking them.

He strides down the length of the table, slamming the glasses down as he reaches the end, but keeps moving forward, backing her towards the wall.

"You want closer?" he spits out as they move

Her back hits the drywall and he kisses her, arms coming up beside her head to keep her caged in.

"Close enough?" he sneers when they break apart.

In lieu of answering, she knots her fingers in the hair at the nape of his neck and gives his head a vicious yank forwards to bring their lips back together.

~Kingsman~Kingsman~Kingsman~Kingsman~Kingsman~Kingsman~Kingsman~Kingsman~Kingsman~Kingsman~Kingsman~Kingsman~Kingsman~Kingsman~Kingsman~

When Roxy wakes up, the first things she registers is that she needs to go to the bathroom, and the second is that there's someone else in bed with her and that they're both naked. All of this is fairly standard, and she thanks her lucky stars that she woke up first and won't have to remember if she's Alice or Elizabeth or...fuck. This is Eggsy's bed. The naked man is Eggsy. She doesn't have to remember whether she's Alice or Elizabeth or anyone else because he already knows she's Roxy. None of this, however, changes the fact that she has to go to the bathroom, so she slithers out of the bed and into his ensuite. When she gets back, Eggsy is sitting up, sheets pooled around his waist.

"So." he begins. "We got pretty close."

And she laughs. She laughs and laughs, and he laughs too, and lifts up the covers to invite her back to bed, and so she crawls back into the bed and his embrace, and they lie there for a while just chuckling at the absolute absurdity of having sex with your best friend because of a hideous, screaming argument and discovering you like it and then getting back into bed with them because it was your weekend off goddamnit!

Eventually, they settle back down into the pillows, Eggsy's body spooning Roxy's.

"You could stay here tonight if you'd like." He mumbles into her ear, bunching up slightly to kiss the space between her shoulder blades. "Tomorrow night too."

She sighs and snuggles into him contentedly.

"Absolutely not. You have a remarkably comfortable bed, but my room is bigger."

He laughs quietly in her ear.

"I guess we have some refurnishing to do. And I'm sorry about the helicopter ride. Should've figured you wouldn't love that."

"s'ok. Good job getting the files."

So yeah, decided not to go the M route. Might do a oneshot of them, we'll see. Hope you liked!