REESE WITHERSPOON has introduced the world to her newborn son by stepping out with the tot on Wednesday (07Nov12).

The Walk The Line star gave birth to Tennessee James, her first child with husband Jim Toth, on 27 September (12), and six weeks later the proud mom debuted the baby on a stroll through Los Angeles.

The actress made no attempt to shield Tennessee from onlookers and was photographed scooping the youngster out of his stroller and parading down the street cradling her bundle of joy.

Witherspoon also has two kids with ex-husband Ryan Phillippe, daughter Ava, 13, and son Deacon, nine.