[victory_angel]

With Korra and Asami's becoming lesbians, it was left really subtle in a take it as you will scene that involved the two of them going off to visit the Spirit World together. And depending on how you viewed it looked like two people just going off on a journey as friends, or as lovers.

And afterward the producers did explain that scene was meant to imply they had become lovers.

There are also implied same-sex relationships in Friendship is magic namely between the background characters Lyra and Bonbon. Except the closest thing they could say is that their 'Best Friends'.

With Karai and Shini, it will probably be similar to Korra and Asami in that they would have some hints. But it's largely taking things as you interpret them rather then coming out and saying it.