Benji Is Paris' Bathroom BFF

Her boyfriend stands guard outside the bathroom at her premiere party to ensure her privacy...get the deets!

At the premiere party for Paris Hilton's MTV show, My New BFF, it was obvious who's really got her back: boyfriend Benji Madden.

After the couple arrived together and Benji escorted her down the red carpet, Paris headed straight to the bathroom to primp before an on-camera interview inside.

Benji, along with her bodyguard, stood watch by the door to ensure no guests went in while his girl touched up her makeup.

Even the BFF candidates from her own show were asked to wait outside for the heiress to finish—by none other than Benji himself.

The party details were definitely all Paris...

Guests grubbed on big boxes of candy, cupcakes, cotton candy and hot dogs. Svedka cocktails were available for the thirsty masses, which was a good thing because LAX, the club where the bash was held, wasn't air conditioned on this particular sweaty night.

But Paris' potential besties weren't totally banned from being with her all evening. After the screening, she hopped into a limo and brought all the contestants along for an afterparty at Apple Lounge.

Paris Hilton's My New BFF airs Tuesdays at 10 p.m. on MTV.