Reese Witherspoon and husband Jim Toth took her kids with them on family honeymoon in Belize

Celebrating marriage has been a family affair forReese Witherspoon.

Less than two weeks after tying the knot, theOscar-winningactress and husbandJim Tothflew toBelizefor a romantic six-day honeymoon. Joining the newlyweds were Witherspoon's two children from ex-husbandRyan Phillippe: daughter Ava, 11, and son Deacon, 7.

"They didn't ask for any VIP treatment, walked off the plane like regular tourists, waited in the immigration line and waited to get their bags from the baggage carousel,"an eyewitness toldUsMagazine.com.

Wearing a white T-shirt, jeans and a brown hat, Witherspoon, 35, reportedly went nearly unrecognized when her new-formed family of four arrived in the Central American country on April 4.

"They definitely looked like a happy family,"the source added about Witherspoon and Co., who reportedly spent their time in Belize perusing gift shops and visiting tourist attractions."The kids seemed like they had no problem with {Jim} around."

Witherspoon, 35, and Toth, 40, who began dating in January of last year and became engaged in December, said"I Do"March 26 at the actress'Ojai,Calif.ranch in front of 150 family members and friends.

Their family getaway won't last long, however– Toth, an agent at CAA, is reportedly due back at his job inLos Angeles, while Witherspoon will begin work promoting her new film,"Water For Elephants,"which opens in theaters April 22.

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