"Fuck you too," Lyra said, opening the door just as he blew up, but she was grinning just to see him still awake. Getting back when he was asleep was shitty, it was impossible to get ready for bed in the dark without running into something, and sometimes you had to crawl all the way down the bottom of the bed for pajama pants, though at least there was a pre-warmed bed in it for her (less great, during summer) and sometimes he wasn't so sleepy that he wasn't up for some fun but - she always liked it better when he was still up.
"Oh my god Aves," she said, bouncing the short distance across the room to bend over his chair, arms draped over his shoulders and down his chest. Her chin fit nice on his shoulder, where she could watch his screen. "You ain't even working! Love that for you," she turned her face a little to kiss his neck in greeting, adding an "And me" onto the end of it, out of the spirit of pure honestly.
Maybe the spirit of pure vodka was also a lil involved, but mainly honesty.