jennifer anistonJennifer Aniston may be planning to marry for the second time before she turns 40 next year, according to inside sources.

Sources close to the former Friends star claim her relationship with John Mayer is going from strength to strength and she sees him as having serious long-term potential.

A source told OK magazine that a proposal may take place over the next month, before Jennifer premieres her new film Management in September: “As it stands now, John will be on the red carpet with her.

“And don’t be at all surprised to see Jen sporting an engagement ring by then. These two are serious!”

The couple went public with their relationship in April but are said to have been dating since February - and a source explained that the couple could very well celebrate their first anniversary by getting married, just before Jennifer’s big birthday on 11th February: “Jennifer is conscious that she’s getting older and is so sure about John that she doesn’t want to hang about.

“Expect them to be trying for children from as soon as they tie the knot.”