Disclaimer: I do not own Sirius, Remus, or their friends; they will go back where I found them when I'm done. Also, I don't own Johnny Cash, Cole Porter, or their amazing music.

"'I keep a close watch on this heart of mine,'" Sirius whispered warmly into Remus' ear.

"Sirius, you're drunk," Remus sighed, stifling a giggle.

"'I keep my eyes wide open all the time.'"

"Sirius…stop it."

"'I keep the ends out for the tie that binds. Because you're mine, I walk the line.'"

The two of them sat at a table at the James' parents' house, enjoying the festivities of Lily and James' engagement party. As was usual for him, Sirius had been enjoying them a little too much. Granted, he wasn't terribly drunk, but he was drunk enough to have his inhibitions lowered in interesting ways; today, that happened to mean singing music by the Muggle musician, Johnny Cash, at Remus. At least this was better than the last time Sirius had gotten drunk. The last time he'd done it, they'd been at Frank and Alice Longbottom's wedding reception, and he'd proceeded to dance with everyone he could get his hands on – including Minerva McGonagall, Albus Dumbledore, the bride herself, Lily, Peter, and a very discontented Alastor Moody – before taking Remus into a tango and kissing him passionately in the middle of the dance floor.

Thankfully, most of the people at the reception knew about their relationship already, so almost no one was surprised. Lily had sighed and James apologized profusely to Frank and Alice; Frank didn't really seem to mind, and Alice thought it was adorable, even if Sirius was engaging in excess. The only one who really seemed to mind was Moody, and, at that, only because he attributed the obvious intoxication to Sirius being under the Imperius Curse. At his insistence, Frank sat Sirius down and looked him over, quickly deciding that he was, in fact, just drunk.

"'I find it very, very easy to be true,'" Sirius went on, emboldened by Remus' awkwardness. "'I find myself alone when each day's through.'"

"You'll find yourself on the sofa tonight if you keep this up," Remus scoffed.

"But…but…nyer," Sirius whined, throwing his arms around Remus' shoulders.

"Your capacity for logic is astounding."

"'Yes, I'll admit that I'm a fool for you.'"

"In all fairness, Sirius, you're kind of a fool in general."

"A very sexy fool, who's very in love with a certain werewolf…that being you of course."

"I really couldn't guess."

"'Because you're mine, I walk the line.'"

Remus sighed and chuckled as Sirius lowered his dark-haired head onto his shoulder. Yes, he was drunk, but…it was kind of cute, in an endearingly reckless and adorably alcoholic way – especially when he began rubbing Remus' shoulder with his head. He could've just turned into Padfoot right now with the way he was acting.

"Well, you know what I think?" Remus asked, keeping a chuckle down.

"Whazzat?" Sirius muttered.

"'You're the Nile,'" Remus sang softly.

"Remus…no…"

"'You're the Tower of Pisa.'"

"Not this one, come on."

"'You're the smile on the Mona Lisa.'"

"Reeeemuuuuus…"

"If you can do it, then I can too."

Sirius paused to consider this. As usual, Remus was right, and he wasn't a terrible singer.

"Fine," Sirius huffed. "But sing something happy, damn it."