Stars Show Off Their Bikini Bumps!

From Penélope Cruz and Jessica Simpson to Gisele Bündchen, see which moms-to-be look just swell in their swimwear

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CAMILA MCCONAUGHEY

Expecting her third child, the model mom bared her bump in a tiny black bikini and white sarong while on vacation in Ibiza, Spain, with husband Matthew on Aug. 11.