Louis Bullock Turns 2!

A beaming Sandra Bullock and 2-year-old son Louis, adopted by the Oscar winner in January 2010, share a hearty laugh during a Jan. 5 family outing in Los Angeles.

Ahoy, matey! Rocking a cool skull bandanna, baby Louis and mom Bullock dress the part during an October 2011 pirate-themed birthday party in Brentwood, Calif.

Bullock and her favorite carry-on – Louis in a natty newsboy cap – head out of LAX in September 2011.

The mom-and-son duo opt for fashionable headwear to shield themselves from L.A.'s rays while out and about in August 2011.

Looking cool in aviator shades, Bullock and her chubby-cheeked co-captain, Louis, enjoy an all-day excursion in New York City in April 2011.

"If you let a child into your life, you get a second chance at a childhood and you do things you thought were long past," Bullock shared when she adopted her son in 2010. Here, the focused mom lets her growing boy explore an N.Y.C. playground in March 2011.

Sporting the perfect holiday hat, Louis gets assistance from mom Bullock while riding a horse at a December 2010 Christmas party.

Like mother, like son! Unwinding on a Caribbean beach in October 2010, Louis keeps his cool in a bold blue sun cap while mom Bullock sports a floppy straw topper.

"He's just perfect, I can't even describe him any other way," Bullock revealed exclusively to PEOPLE when she announced that she became the proud mother of New Orleans native Louis Bardo Bullock in January 2010.