I'm on fire really...

In case you didn't realize, Gabriel is Portugal, Antonio's brother, who has little to do with Youtube, but ended up going to the charity event because he's a big softie for his little brother (Allow me my headcannons goddammit!)
Arthur knows Gabriel because when he was younger his family hosted him as an exchange student, the two grew extremely close. The, at the time, fifteen year old Gabriel acting like an older brother to the ten year old Arthur, and Arthur looked up to him as such (Since his other brother's were arseholes, his words, not mine) and even when Gabriel had to go home they kept in touch, and remain good friends to this day.
When they found out that Francis and Antonio were also best friends, they were a little baffled at how small the world could be, but then again, who wouldn't be?

Enjoy ;)

"Hey Francis!" Arthur called, walking into the living room where Francis was setting up the camera. "Oh," he said, stopping, "Are you recording? It can wait."

Francis just shook his head and smiled, "Not yet, what was it?"

Arthur held up his phone, "Alfred wants to Skype."

Francis frowned, "Did he say why?"

Arthur just shook his head, "No, he just said that he wanted us to call him as soon as we have the chance."

Francis stuck out his tongue a little, glancing at his equipment, "We'll have to make it quick." He said, "I don't want to lose the light."

"Dudes, you have no idea how pumped I am right now!" Alfred said as soon as he picked up, his massive smile lighting up the screen.

"No," Francis chuckled, "We don't. What is it that's got you so excited?"

"Ok, so here's the deal," he said excitedly, "I'm teaming up with a bunch of other Youtubers and we're gonna do this whole charity event over here in The States." He paused, for what appeared to be effect, "Soooo..." He went on, "I'm inviting both of you to take part! You'll have to pay for your own flights, but we've rented out an entire hotel so you don't need to worry about all that. It's in four months, here, in New York, and it would be so great if you could come, you have no idea!"

The two men on the other side of the screen smiled brightly at the blonde's enthusiasm, "We would love to Alfred!" Francis cooed happily, making the already million-watt smile on Alfred's face light up even more.

"Really?" he cheered, "No way this is gonna be so awesome! We're gonna have..."

"It was so great to meet you girls," Francis cooed, smiling charmingly at the small group girls that Arthur assumed to be in their mid-teens.

He just scowled at them from his place leaning on the wall a small ways away. They didn't notice him, of course, he made sure of that. The last thing he wanted was Francis' fans bothering him. Now don't get him wrong, he was grateful for every fan and every bit of support he got, but that didn't mean he appreciated girls he'd never met before prying into his personal life, and he meant personal life. He honestly could not fathom their reasoning for wanting to know about their private lives, in his opinion, what happens in the bedroom... or sofa... or kitchen counter... or, once, memorably in the back of an almost completely empty cinema... should bloody well stay there! Not that Francis seemed to share his views.

Yeah, well, there is a difference between being a prude and having a lick of self respect, Francis.

So wrapped up in his thoughts as he was, he didn't notice someone come up beside him. "Hey Artie," they said, making Arthur practically leap out of his skin.

He turned, the scruffy brown ponytail and amused smile of one of Arthur's oldest friends filling his vision. "Gabriel!" he exclaimed happily, pulling him into a tight hug, "I didn't know you were coming!"

Gabriel chuckled, holding Arthur out at arms length to better see his face, "'Tonio forced me," he replied, "Said something about supporting him on his first trip to the US."

Arthur chuckled, "The git would pull something like that, wouldn't he?"

Gabriel just rolled his eyes, "He has his girlfriend and Lovino here with him, I don't see why he needs me."

"While that is true, I'm glad you're here!" Arthur said, clapping him on the back, "It seems like years since we last saw each other!"

"You're right!" he cheered, throwing an arm over Arthur's shoulder and leading him away from the gaggle of Fangirls -and boys Arthur noted sceptically- still surrounding Francis, "Let's go get a coffee and catch up!"

"'ave fun today?" Francis asked blearily, his accent thick with sleep, as he glanced up from the bed to the silhouette of Arthur creeping through the room.

"Shit, sorry, did I wake you?" he stage whispered, and Francis couldn't see his face, but he was sure it was funny so he let out a short breath of laughter from his nose.

"Yes." He replied, "But I don't mind, I'd hoped I'd see you again today."

Arthur chuckled, sitting on the side of the bed, presumably to remove his shoes. Francis rolled over, wrapping his arms around Arthur's hips, and nuzzling into the soft jumper that he'd bought for him a few months earlier.

"What got you so cuddly?" Arthur laughed, petting Francis' head lightly.

"You spent all day with Gabriel," he mumbled into the jumper, "I'm feeling abandoned."

"You were busy with your fans, and my meet and greet wasn't for another hour."

"Could have met me afterwards."

"I see you every day. I only get to see Gabriel every so often."

"I know."

"Hey," Arthur said, pulling back Francis' hair from his face, making Francis re-open is eyes and blink sleepily at him, "I know what you're thinking and I love you, you tosser."

Francis smiled at what little he could see of Arthur, "Mmmn, I love you too." He mumbled.

Arthur just chuckled and attempted to remove himself from the vices that Francis' arms had become, "Francis, my dear, I've got to get changed."

Francis just grumbled and held him tighter "Non."

"Francis...

"Non."

Arthur just let his weight fall back, and honestly, the strangled screech was entirely worth the cuff to his ear.