Do It With A Rockstar by Amanda Palmer.


Brushing his dishevelled locks out of his face, setting his near-empty wine glass onto the coffee table, Remus stumbled to his feet.
"I should go," he muttered. "It's late." Sirius grinned and clutched his sleeve.
"You shouldn't Apparate. You're drunk." He stood and kissed Remus, long and deep. "Besides… wouldn't you rather stay?"
"You know I would, but-" Sirius silenced him with another kiss. He ran his tongue along the werewolf's warm lips.
"Then stay."