Ashley Tisdale's bikini bod

Ashley Tisdale shows off her bikini body at the Wet Republic pool at the MGM Grand Casino and Hotel in Las Vegas, Nevada.The 25-year-old actress shared the hosting duties at the event with her Hellcats co-stars Robbie Jones, Matt Barr, and Heather Hemmens.

Ashley tweeted that she was celebrating her birthday with her pals, even though her actual b-day was back in July.Ashley spent some time at the party cuddling with her boyfriend Scott Speer and swimming around in the pool together. The High School Musical star's BFF Vanessa Hudgens even showed up for the bash.