Gisele Bundchen Bikini PHOTO with Baby Daughter Vivian; Flaunts Slim Post-Baby Body (PICS)

Gisele Bundchen stunned onlookers on a Costa Rica beach on March 13 when she showed off her slim post-baby body in a two-piece bikini four months after giving birth.

The 32-year-old carried her three-month old daughter, Vivian Lake Brady, in an Ergobaby carrier strapped to her chest as she walked along the beach. Her husband, 35-year-old NFL star Tom Brady, was hanging out with their three-year-old son Benjamin. 

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See the photos of Bundchen's impressive post-baby body here.

The power couple was on vacation in Costa Rica with their entire brood- Vivian, 3 months, Benjamin, 2, and Tom's  5-year-old son John from his previous relationship with actress Bridget Moynihan.

The couple was seen toting their infant daughter along for a ride on an ATV and Tom was steering from the back.

Bundchen announced the news of their daughter's birth on her Facebook page in December.

"We feel so lucky to have been able to experience the miracle of birth once again and are forever grateful for the opportunity to be the parents of another little angel," Bundchen wrote on shortly after she and Tom welcomed Vivian into the world on Dec. 5. "Vivian Lake was born at home on Dec. 5. She is healthy and full of life. Thank you all for your support and well wishes. We wish you and your families many blessings."

Bundchen topped Forbes' Highest Paid Models list in 2012. She earned an estimated $45 million and is considered the world's most powerful supermodel, according to the report.

Tom, who is a quarterback for the New England Patriots, last played for the NFL on Jan. 20. The Patriots played against the Baltimore Ravens during the AFC Championship game. Tom has played with the Patriots in the Super Bowl five times in his ten seasons with the team and they won three Super Bowl games. He also won the Super Bowl MVP title twice.

The couple landed at No. 2 on Forbes' The World's Highest Paid Celebrity Couples' list thanks to the supermodel's annual earnings of $45 million and Tom's 4-year contract with the Patriots, worth $72 million.