Has Jennifer Aniston plumped her lips to try and be like her ex-husband Brad Pitt’s new partner Angelina Jolie?

It certainly seems the case judging by recent pictures snapped of the Friends actress, her top lip has suddenly become rigid and trout-like.

A source tells the Daily Mail: “It seems obvious she had some work done. (Her lips have a) stiff, unnatural pucker that just didn't fit the rest of her face.”

Jennifer before (left) and after (right) lip-plumping?

Many are speculating that Jen is going through an image overhaul as she enters her fortieth year, not to mention the desire to impress new boyfriend John Mayer who is almost 10 years her junior.

What do you think, has Jen had work done on her lips? Did she even need it in the first place? Be sure to leave your comments below.