"I never did anything to him." Sirius protested, which wasn't exactly true - even in the beginning Kreacher had always preferred Regulus to Sirius, at least in Sirius' mind. But then Sirius had been good at being an arse to everyone when he was younger, so he didn't exactly doubt that he'd done something at one point to offend the elf.
He smirked when Remus set a handful or ornaments on him and he easily took over plucking a few from the air to hang on the tree. "I can't help that you're overeager to get your hands on the family ornaments, Moony." He smirked at his friend just as Jamie joined them.
"Couldn't be too careful, it seems a certain house elf has a faulty memory when it comes to some people, just wanted to make sure you weren't going to be left out." He chuckled when James complained about the elves, at least he'd gotten the message.
Sirius hung another ornament on the tree and then wrapped his arms around James and pressed another kiss to his lips. He shrugged though when James asked about the colors. "You'll have to ask our supervisor about that he took care of the color scheme this year."