Spencer Pratt's sister Stephanie Pratt got busted with a DUI leaving a club in Hollywood following sister in-law Holly Montag's birthday party at 3:45 a.m. on Sunday morning, and I would just like to be the first to say: "Ha ha!"

Pratt, 23, was released on $5,000 bail late Sunday morning. Her booking info reveals the 5'7" reality star weighs 115 lbs.

Pratt had been partying at Holly Montag's birthday bash at Los Angeles club Empire earlier that night. At 11 p.m., she Twittered: "its my sissy @hollymontags bday party! just finished dinner and going to Empire but im pretty tired aka yes i am the party pooper :(" (Source)

You know it's only going to be a matter of time before Spencer Pratt and Heidi Montag release some assy statement saying how they're praying for Stephanie and how the devil made her do it. Right. Like Satan has nothing better to do than encourage some reality-tard to pound shots of vodka after having eaten nothing besides chocolate-flavored laxatives all day. I'm sure he's got more pressing matters at hand like orchestrating Spencer Pratt's 2032 presidential campaign.

Stephanie and Holly, pre-DUI Saturday evening: