Maybe Asami just hadn't had enough time to react and not make it quite as awkward. Or maybe she just didn't care enough to move away. Another option would be that she flat out didn't want to.

Details.

"That sounds delicious." Asami's voice was lowered appropriately, given their proximity. Her eyes lingered on Korra for a brief, telling moment before she sat back and turned to the waiter.

"Two slices of that cake, then."