Who's the Boss?

I've had the following conversation with Tess several times:

Tess: Mommy, are you the boss?
Me (with no hesitation - hesitation shows weakness): Yes. YES I AM.
Tess: Okay, you are the boss. Can I be the boss when I get big?
Me: Sure.
Tess: Are you the boss of the car?
Me: Yes. YES I AM.
Tess: Can I be the boss of the car when I get big?
Me: ...sure.
Tess: Yes I will be the boss of the car when I get big.

And then she continues to chatter on while I picture her as a 16 year old telling her friends that SHE is the BOSS of the car.

Then today we had the following conversation.

Tess: Daddies car is the blue car and our car is the red car.
Me: Um, yeah.
Tess: The blue car is Daddy's car, he is the boss of the blue car. The red car is OUR car...
Me (interrupting): Um, no, the red car is MY car. Not OURS.
Tess: The red car is OUR car.
Me: MY car.
Tess: Mine?
Me: MINE.
Tess: Ours.

I get the feeling she's getting a little impatient to become the boss of her own car.