Jessica Simpson's feet are ''swollen and hurt'' during her second pregnancy.

The 'Fashion Star' mentor - who already shares daughter Maxwell Drew, 11 months, with her fiance Eric Johnson - has been forced to stop wearing high heels because her back and feet are in constant pain.

Jessica confessed she has had to forgo her love of stilettos on her Twitter page on Friday (29.03.13), posting the message: ''Practicing walking in flats around my house'' along with a picture of her in a pair of sequined sandals.

A source close to the 32-year-old singer also recently told ''Jessica is no longer wearing heels. Her feet are swollen and hurt, and high heels hurt her back.''

Shortly before Maxwell's arrival in May 2012, Jessica admitted she was unhappy about the idea of not wearing her favourite footwear.

She said: ''I went to the doctor yesterday and he said, 'You're gonna need to get out of those heels!' I was like, 'Excuse me! I'll be delivering in these heels!'''

The blonde beauty is set to give birth to a baby boy this summer.

She recently admitted her second pregnancy hasn't been as easy as the first, saying: ''It's a totally different pregnancy. I just feel awful, I've been vomiting.''