paris hilton doug reinhardt the ritz paris france blonde smile sunglasses Paris Hilton and her boyfriend Doug Reinhardt looked decidedly dressed down as they headed to Paris' commercial shoot yesterday in Paris.

Paris, who changed into heels for the shoot tweeted, "Still on set shooting. Wearing 6 inch Christian Loubuiton's for over 12 hours really hurts. But my motto is looks before comfort. ;)"

Looks like chose comfort for the trip over to the set, but can you blame her? I can't even stand wearing 3-inch heels for 3 hours!

After the long day on set, Paris and Doug got up early this morning to catch a flight back to LA. I guess if you have to work non-stop, it's great that you get to do it in exciting locales like NYC and Paris!