The 25-year-old singer, who is now just days off giving birth, is expecting her first child with partner MC Harvey.
While she bares almost all for magazine shoot, Javine insists she's self-conscious about her new shape: "I feel a bit rubbish about myself.
"I'm usually l0st 7lbs, but I've put on 3rd. All I'm doing is sitting at home and eating! My bum's got really big - it has its own little personality."
She told Closer: "Harvey takes the Mickey out of my bum. I guess it's hard for your partner. The body that was 'theirs' suddenly looks completely different, and I don't think they look at you in quite the same way."
Reality TV star Bianca Gascoigne also put modesty aside, joining Javine's efforts to shed inhibitions.
Still, Bianca admits she dislikes every part of her body except her surgically enhanced breasts.
She says: "My feet are too big, my thighs wobble, and my bum isn't toned."
"I wouldn't be happy unless I looked like Angelina Julie."
Despite Javine's reservations, she says: "I'm so glad I'll have these pictures to remind me of how I looked when I was pregnant."
Javine hit the headlines in 2006 when it was revealed she had been having an affair with the former So Solid Crew star, who is still married to Strictly Come Dancing winner Alesha Dixon.
They met while performing together in West End musical Daddy Cool and now live together in north London.
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