Play it safe, go for her hormones.

You decide that flat-out **** her would be a bad idea. Azula is easily stronger than you, and is a cold-hearted bitch. Even if you were successful at first, she would still likely kill you when you finished.

Messing with her hormones to make her want to be fucked seems to be the best plan. You start slowly, as Azula is brilliant, and could easily put her rush of hormones and your sudden appearance together, regardless of how horny she was. You increase her hormones slowly, from as far of a distance as you can get. You watch through a small, handheld telescope. At first, nothing, but soon, Azula' nipples are visible through her shirt.