Rarely have a pooch and pussy gotten along this well.

In a series of ads for the Guess spring/summer clothing line, Paris Hilton poses alongside her Chihuahua, sticking the poor puppy near a location that only a few thousand have dared to visit before.

Looks like someone is moving in on your territory, Doug Reinhart...

We really have no idea why Guess thought Hilton would help sell its clothing.

As other advertisements in the set prove, Paris is only good at a few things: putting on make up; drinking; and lying on a bar, waiting for a bored, horny bus boy to take pity on her...