Jennifer Aniston did it first, quickly followed by Blake Lively. Now Britney Spears has pulled out this spring’s most reliable accessory to nab a boy toy: the bikini. While sobering up at Casa Gibson down in Costa Rica, Spears spent the weekend looking happier than she has in months in two very itty bitty string bikinis adorned with tattoo parlor jargon. And in between bouts of boogie-boarding, golf cart-riding and rounds of Hide-and-Seek played amidst driftwood, Spears appeared to have successfully lined up a male suitor of her own. Who the mystery man might be, and a closer look at Spears' ongoing tendency to block her possibly-knocked up belly from sight, after the jump.