She's one of the happiest travelers we've ever seen!

Tara Reid made her way through LAX yesterday, and the American Pie actress must not have realized her shirt was see-thru when photographers began taking her picture, because she was all smiles and didn't seem to have a care in the world!

To the blonde beauty's credit, most times a nude bra under a black shirt is unnoticeable, so it's simply the camera flash that exposes too much cleavage. Kim Kardashian knows a thing or two about this wardrobe malfunction, but something tells us she does it intentionally!

Miss Reid is quite the international traveler in recent years, so we wonder where she was headed this time? Our money is on St. Tropez!