London, Aug 25 : Pregnant pop star Lily Allen says she feels like a waddling penguin, thanks to her expanding baby bump.

She woke up in the morning feeling like a penguin, the aquatic bird known for walking slowly on land, and she gradually started thinking about a chocolate biscuit called Penguin, reports femalefirst. co. uk.

"I feel like a penguin, not the chocolate covered biscuity kind, but an actual penguin that waddles ... now can't stop thinking about chocolatey penguins doh! (sic)," Allen posted on her Twitter page.

Allen, who married builder Sam Cooper earlier this summer, is beginning to feel the effects of pregnancy as she enters her third trimester.

"I can't see my toes and I'm not bendy anymore," she had posted a few days ago.(IANS)