Cheryl ColeCheryl Cole's lips (on the left) look a little different this weekendThere's something different about Cheryl Cole.

She's looking perkier than usual...

In the lip area.

Cheryl was spotted at Heathrow airport this weekend en route to Germany with a strangely inflated-looking pout.

Her appearance prompted suggestions she might have had a little helping hand from some lip-plumping collagen fillers.

As she strode through the airport, at one point she tried to cover the lower half of her face with her hand.

But, despite her fuller-looking lips, her rep insisted "she has definitely not" had anything done to them.

Perhaps it's just very good lip-plumping gloss?

If so - can you tell us the name of the brand, please - we'd love to get our hands on some.

It's usually Cheryl's hair we get all excited about - as our gallery below shows.