Cautious....

Alex:  Row, row, row your boat, carefully down the stream!

Don't Hold Your Breath

Alex stops walking halfway down the stairs...
Mama:  Alex, what are you doing?
Alex:  Waiting for the escalator!

Santa Pictures 2012

And a quick flashback....

Kittens

Mama:  So, you know Suzy is having a baby.
Caitlyn;  Yep
Mama:  Do you think it will be a boy or a girl?
Caitlyn:  A girl, I like girls & kittens.

  

Sisterly Love II

Caitlyn:  You'll always be my best friend.
Alex:  I know.
Caitlyn:  Say, "You'll always be my best puppy"
Alex:  You'll always be my best puppy