She does! A bit of a mental plane!

"Oh, I think I have an idea," Korra whispered to Asami, who beamed at her.

"Oh? What have you got in mind, Mistress?" Asami asked, looking quite excited.

"I wish that we could enter a sort of dream state when we meditate that is joined together, and feels just like reality. Time should pass on it at roughly the same rate, and we should be able to have all kinds of fun in it, and reshape it according to our whim," Korra murmured to Asami.

"Done, Mistress," Asami smiled, snapping her fingers in delight. "Shall we get started?" she asked.

Korra nodded, and got into a meditation pose. Tenzin noticed them, raised an eyebrow at Asami's presence, but didn't say anything. Most non Airbenders didn't bother with spiritual alignment, so it was good to see Korra's girlfriend involved. The Airbenders all started the session, unaware of what Korra and Asami were actually getting up to in their thoughts.

The two appeared in what looked like a desert palace, dressed in their genie outfits. "...Tenzin would have a fit at how we're treating his meditation session," Korra laughed.

"Maybe a little," Asami agreed. "But we can meditate for real any time, no harm in having some fun from time to time, eh, Mistress?"

"Nope," Korra sniggered.