Kristin Cavallari: Charitable Liquid Bikini Babe

Showing off her glam figure, Kristin Cavallari was the center of attention at the Aria Resort & Casino at CityCenter in Las Vegas, Nevada on Saturday (April 24).

The "Hills" hottie donned a sexy black bikini with a sheer black top as she posed for pictures at the Liquid Pool Lounge - where she happened to be the weekend host.

Having flown into town early in the morning, Miss Cavallari tweeted of the trip, "These early morning are killing me...off to VEGAS. Whose gonna be at liquid today?!"

Meanwhile, it sounds as if Kristin is getting generous with the cash she's been pulling in, as she wrote to her Twitter fans and followers, "I'm donating a good chunk of the proceeds from today to my charity One Kid One World. Every little bit counts ;)"

Credit: Celebrity Gossip

Credit: Faded Youth Blog

Kristin Cavallari Hosts Liquid Pool Lounge 4/24

Date: Saturday, April 24, 2010

Time: 11:00 AM

Venue: LIQUID Pool Lounge (Aria- City Center)

Phone Number: 702.885.4400

URL: http://www.lightgroup.com

Price: $50+

Music Type: Vegas Club Mixes

Credit: AE Vegas

Heidi Montag: Liquid Pool Bikini Babe

Showing off her newly remodeled figure, Heidi Montag was busy flaunting her bikini body in Las Vegas, Nevada on Saturday afternoon (April 10).

The "Hills" hottie posed for pictures at Aria at CityCenter before removing her beach cover as she grabbed up a lounge chair at the popular Sin City destination, Liquid Pool.

In related news, Miss Montag and husband Spencer Pratt took time a few days prior visiting Marine Corps facility Camp Pendleton in San Diego County.

Telling of the trip, Heidi and Spencer told People magazine, "We went to visit Camp Pendleton to see the Marines. They’re the most valiant, honorable and courageous men and women in the United States. It was one of the best days of our lives."

The MTV reality star couple adds, "Our freedom is so important to us and thanks to these Marines we get to be the entertainers we are. We wanted to take the time to honor them and pay our respects to the Marines who make this country and nation possible and allow us all the freedoms that we enjoy."

Credit: Celebrity Gossip

Click here for pictures of Heidi Montag's arrival to Liquid Pool.

Credit: Pop Sugar

Heidi Montag's Arrival To Liquid Pool & Lounge

Heidi Montag arrives to host a pool party at the Liquid Pool at Aria in CityCenter on April 10, 2010 in Las Vegas, Nevada.

HeidiMontag "Designing my bathing suits for Liquid Pool & Lounge in Vegas" 7:44 PM Mar 24th via web

What can I say? Heidi, you are no Lauren Conrad.

Credit: Film Magic / Rex Features

Heidi Montag: Las Vegas' Liquid Pool & Lounge

Heidi Montag is coming to Liquid Pool and Lounge tomorrow!! The always-delightful “reality-tainment” star cannonballs into Las Vegas’ newest pool lounge. Here’s your chance to see her all wet, up close and personal! Thirsty for life? Get some Liquid every Thursday through Sunday!

Where: Liquid Pool Lounge at Aria
When: Saturday, April 10, 2010
What time: 11:00 AM
Dress code: Proper Attire Required