[Sokka pets the lemur very gently, followed by the occasional tug to try to detach the furry thing from his face. After some amount of time, Momo stops chittering about and decides to actually let Sokka see, which is certainly an improvement, but Sokka still isn't going to win the award for best dressed as now he has a flying lemur hat.]

Oh, well, you know. Momo and I... we go waaay back. We're the tightest of friends. Always looking out for one another. Making sure he doesn't get into trouble...

Shall we head up and see Katara?

[Or at least he assumes that Katara would be upstairs. The décor might be different, but overall, the structure of the house looks more or less the same.]