Actress Megan Fox has poked fun at her 12-year-old self by posting childhood photos online.

Fox insists she hasn't always been known for her looks and tried to prove her point on Friday by sharing three pictures from her youth on her Facebook page.

Alongside one snap, she writes, "I encourage you to admire my citrus/copper-coloured highlights (thanks Sun-in!), my braces and my ever present sunburn. And yeah, I'm brushing my eyebrows with a toothbrush in that one picture." Last year she uploaded two images of her as a tot in an album titled, I Look Like Steve Buscemi.

Fox is yet to comment on reports she is expecting her first child with husband Brian Austin Green after last month showing off what appeared to be a "baby bump" while in a bikini.