By Alexis Tereszcuk - Radar Entertainment Editor
She’s one hot mama!
The 37-year-old mom-to-be sizzled in the one piece suit while on the beach in Costa Rica, showing off her toned legs and burgeoning belly.
Reese and her new husband Jim Toth tied the knot on March 26, 2011 and now in their second year of marriage the happy couple is expanding their family with their first child together.
“My children are the best part of my day,” Reese has said. And with older sister Ava and older brother Deacon, Reese’s children with ex Ryan Phillippe, Reese’s new baby will surely be a welcome addition to the Oscar winner’s family.