Fergie's husband Josh Duhamel loved having "extra meat" to grab hold of when she put on weight.
The Black Eyed Peas star put on 13lbs for her role in new musical movie 'Nine' but says her actor spouse never made her feel body-conscious.
She said: "When I came home from filming he was excited. He enjoys having both: the extra meat to grab when it's there and the tight stomach when that's there...he's never been critical."
Fergie also said she is the perfect partner because she can be both a good girl and bad girl.
She told America's Cosmopolitan magazine: "You know, in Italy, Catholic boys are raised to believe that there are two types of women: the Madonna and the whore. And me? I'm both."
The couple's marriage was recently rocked by allegations the 'Transformers' star had cheated on his wife with a stripper.
However, both Fergie and Josh - who married in January - have branded the claims of infidelity as "ridiculous" and have since put on a show of togetherness.