Now that's one hot mama!

Britney Spears has certainly been hitting the gym. The mother of two took to Twitter to share an adorable family snapshot, showing off her killer bikini body (she's baaaack!) as she poses with sons Preston, 6, and Jayden, 5.

"Getting ready for some pool time! Having a blast xxoo," Spears tweeted from Hawaii.

So who's the lucky guy behind the camera? We have a feeling that fiance Jason Trawick was the one to elicit such megawatt smiles from his family-to-be.

Check out Spears' family photo below:
britney spears bikini

Also on HuffPost:

Loading Slideshow...

  • Hayden Panettiere

  • Ciara

  • Maria Menounos

  • Gwen Stefani

  • Lea Michele

  • Angela Simmons

  • Janice Dickinson

  • Anne Hathaway

  • Angela Simmons

  • Ciara

  • Shemar Moore

  • Rosie Huntington-Whiteley

  • Naomi Campbell

  • James Marsden

  • Rachel Bilson & Hayden Christensen

  • Nicolette Sheridan

  • Balthazar Getty

  • Josh Radnor

  • George Clooney

  • Minnie Driver

  • Gwen Stefani

  • Emma Thompson

  • Sharon Stone & Boyfriend

  • Bruce Jenner

  • Eric Dane

  • Sharon Stone

  • Kelly Rowland

  • Angel McCord

  • Kelly Bensimon

  • Hayden Panettiere

  • Naomi Watts

  • Kate Hudson

  • Courteney Cox

  • Ashlee Simpson

  • Stephanie Seymour

  • Julianne Hough

  • Miley Cyrus

  • Gwen Stefani

  • Lindsay Lohan

  • Rita Rusic

  • Denise Richards

  • Michelle Rodriguez

  • Katie Holmes

  • Aimee Teegarden

  • Tori Spelling

  • Paris Hilton

  • Christina Milian

  • Kelly Rowland

  • Julianne Hough

  • Tori Spelling

  • Stacy Keibler