Reese Witherspoon  and her husband, Jim Toth, escaped to Mexico for a romantic birthday getaway  yesterday. The couple slipped into suits to celebrate poolside today, which is Reese's 37th birthday. Reese was in a striped swimsuit for the sunny afternoon following her trip to bikini boot camp with friends Cameron Diaz  and Drew Barrymore  in Tulum earlier this month. Reese spent a few busy weeks at home in LA before getting back to vacation mode, though. She shared a basketball date night with Jim, attended The Hollywood Reporter's 25 Most Powerful Stylists event, and got into a juice routine at Glow Bio. This week, Reese and Jim hung out in the stands as they cheered on Reese's daughter, Ava, during a school track meet.