Heidi Montag wore a purple L*SPACE bikini and went without makeup as she took a solo stroll on the beach in Costa Rica yesterday. She's been living in the Central American country for weeks now and was spotted making a strange dog exchange with her husband Spencer Pratt earlier in the day. The two are said to be working out a puppy custody agreement as part of their alleged divorce. Heidi has spent lots of time in skimpy swimwear showing her sad faces this month. With all the talk of wanting to reduce the size of her breast implants, she's still flaunting her figure in this latest revealing shoot.