By Breaking Celebrity News Staff

It's a tough job but somebody has to do it!

Alessandra Ambrosio posed up in a series of super-sexy bikinis, for a Victoria's Secret shoot staged on a beach in St. Barts Sunday.

From an itsy bitsy peach-colored string bikini to a just-as-tiny floral design one, Alessandra flaunted the swimsuits and her own amazing bod for hours during the shoot.

Hard to believe but Ambrosio is the mother of two. She gave birth to son Noah just seven months ago.