Paris Hilton might finally be settling down, but that hardly means she's giving up her title as reigning queen on the party scene. 

The bride-to-be hit Las Vegas this weekend for her "last fling before the ring," joined, of course, by her sister Nicky, sister-in-law Tessa, mom Kathy... and her fiancé Carter Reum. Hey, a sure sign of a good relationship is no doubt a combined bachelor-bachelorette party in Sin City. At least we know dude can keep up. 

Tapping Resorts World Las Vegas for their luxury stay, Paris and her posse celebrated with a trippy night out at the neon-filled AREA15, some poolside partying, and an all out rager with none other than Tiesto at Zouk nightclub (where attendees danced with blown up portraits of the future bride and groom, naturally)."... stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
View this post on Instagram
A post shared by Brittni Popp (@betchincakes)

#TeamBride also enjoyed custom cans of Paris Hilton rosé, personalized gift bags, fun sunnies, on-theme bathing suits, and a Barbie bachelorette cake topped with a blinged-out convertible. 

Tying the knot? That's hot!

Click through for a peek inside the festivities! 

[Photo via @nickyhilton]