What's a Girl to Do??

I'm sure it will come as no surprise to most of you when I say that Alaire is quite possibly the most independent and stubborn child I have ever had the pleasure of spending time with. It is these two character traits that I fear are going to make potty training very, um shall we say, interesting! 

Currently Alaire's 3 favorite words are, "I do it." Last week I was in the middle of changing her diaper and Ellis was in the bathroom at the same time so Alaire decided she needed to go too. "I potty," she said and when half way there she turned to me and said, "sit" along with the hand gesture that we give the dog when directing him to do the same. She walked right in the the bathroom, stood beside her brother, lifted her shirt and thrust her hips forward. The whole telling her mom to sit thing is something I know how to take care of,  but the shirt lifting and hip thrusting is something I have no idea what to do with. It's not like that was the only time it has happened either, she is in the stage where she is realizing when she wets her diaper and whenever that happens she lifts her shirt and says, "I potty." I have tried over and over again to tell her that, you are a girl and girls sit down when they go potty." I have said, "Mommy is a girl just like you and girls sit and boys stand. Bubba and Daddy stand and Mommy and Alaire sit." 

She has done all of this so many times that I finally just went today and bought her some Dora underwear and broke out the little potty. Ellis and I attempted "Happy Excited Potty Training Mode" for about 2 hours after nap time but she ended up never peeing and would only sit on it about 3 times always saying, "help mommy help." She is only 19 months so I'm not planning on trying to potty train her for at least 5 or 6 more months but I am so afraid that she will refuse to even sit that I thought I would try to make it exciting now. I guess we will just forget about it for a while and then make our real attempt later.