Nicole Kidman dress AMA awards pregnant Nicole Kidman dress AMA awards pregnant Or is she just trying to hide her over-injected lips?

After showing up to the Country Music Awards with plumper lips AND bust, we were thinking maybe Nic had had a little too much work done, but the way she's cradling her belly in almost every shot, we're wondering if she got an injection of another kind!

Could Sunday be expecting a little sibling?

If so, congrats to Nicole (and to hubby Keith, who won Best Male Country Artist at the AMAs tonight!)