blonde sunglasses fashion smile airport Paris Hilton River Viiperi

Then again, they're always smiling when we snap their picture!

On Sunday night Paris Hilton and her boyfriend River Viiperi returned home from a promotional appearance at the Pool After Dark at Harrah's Resort in Atlantic City, and P tweeted, "Just landed back in LA! Can't wait to get home to my pets! #HomeSweetHome."

Paris appeared on The Wendy Williams Show last week, and she chatted about how she's changed over the last few years. "I'm staying out of trouble," the heiress said. "I've grown up." When asked about River, P gushed, "I am so in love ... He's one of the kindest, most loyal men I've ever met in my life. He treats me like a princess." Awww!