Hilton plans Vegas bash for boyfriend's birthday

Paris Hilton is throwing a star-studded Las Vegas birthday party for her boyfriend Stavros Niarchos when the Greek shipping heir turns 21 later this month.

Ironically, the couple created a stir recently when they were denied access to Sin City's celebrity hotspots because Niarchos was underage, but that isn't stopping them from partying on Vegas' famous Strip.

Hilton explains: "(His birthday) is going to be amazing. I've already planned a big weekend in Vegas. He's so excited he can finally gamble and not get in trouble."

The couple recently returned from a romantic holiday in the Bahamas, where the legal drinking and gambling age is 18 years.

Hilton adds: "(Legally) We were fine. It was fun!"