- Water Tribe culture doesn't do 'sexualities'. You marry a woman and have children (or not, if you're Bato). You may or may not have a male lover, as you feel like. That said, Sokka prefers women.
- Sokka and Katara have kissed experimentally. They were the only two people their age in the village, so it was the only option. They were both immensely happy to get out in the world.
- He thinks cross-dressing is very, very sexy.