Stars Show Off Their Bikini Bumps!

From Kourtney Kardashian to Kelly Rowland and Rachel Bilson, see which moms-to-be look just swell in swimwear

KOURTNEY KARDASHIAN

After weeks of keeping her bump chicly under wraps, the expectant reality star bared her growing belly in a gold metallic bikini – with a little help from 2-year-old daughter Penelope – during a family vacation in the Hamptons.