There was still a lot of nonsensical babbling happening, and even though Steve was doing his best to follow it, he was having a hard time keeping track of the thread of conversation. He had a feeling that was due, in large part, to the fact that Clint and Bucky were mostly speaking in a language of inside jokes, references and asides that Steve simply wasn't familiar with. It didn't bother him - it was nice that the two of them had gotten close - but it didn't make following along any easier.
He did blush at Bucky's very pointed promise that it wouldn't have any unwanted effects on his nether regions. Steve knew he'd technically been the one to allude to that particular debacle, but he didn't feel the need to continue that line of conversation, not when thinking back to that night mostly made him want to curl up in a corner somewhere and die of embarrassment. And Clint and Bucky didn't even know the half of it, really.
Bucky lifted the little black kitten up, and Steve couldn't help but snort when she apparently decided she didn't like Bucky's mooing. "Judgmental cow," Steve muttered, "you two have lost it." He was smiling though, amused in spite of himself. This seemed harmless, truly. Silly and lighthearted, without the slurring and stumbling that accompanied too much alcohol, or the glazed zombie-like air that morphling sometimes produced.
That was enough to convince him to knock back the rest of his tea, setting the mug on the coffee table when he was done, then relaxing back into the warm, comforting press of Bucky and Clint on either side of him. The couch probably wasn't quite big enough for all three of them to sit and maintain any personal space, but Steve didn't mind too much, and it didn't seem as if Bucky and Clint did either.
Moo let out another squeaky meow, then began to pick her way over to Steve on unsteady paws. She climbed over his jeans, her claws too tiny to actually prick through the denim, and then very determinedly began climbing up his shirt. Steve sat very, very still, chin almost on his chest as he eyed her progress. "Hi there," he said warily. She just seemed very small and altogether too fragile, and he was a little bit worried that she'd go tumbling if he took too deep a breath. "So you're Moo, huh? Sorry in advance about the inevitable identity crisis these two lunatics are going to cause you."