Ashlee Simpson's darling son Bronx looked more than a little exhausted as she carried him through the LAX terminal after arriving from a long flight, on Friday evening.

The singer recently adopted a French bulldog puppy named Alabama for her 3-year-old, but the little guy has mixed feelings about the new member of their family.

"At first he was so excited, and then he was like, 'Wait! She's playing with my toys!' Now he is so in love with her. It's great," Simpson told People mag.

We bet Bronx can't wait till new cousin Maxwell is big enough to play with!