Jennifer Aniston and John Mayer to Marry "Soon"

Jennifer Aniston and John Mayer are already talking about getting married, according to a new report.

OK! magazine reports that Jennifer Aniston -- who has traveled the world to be by John's side while he's on tour -- is already discussing marriage with the 'No Such Thing' hitmaker, and friends of the couple believe they could be walking down the aisle "soon".

A source tells the publication, "Jen is so in love with John (that) they are already talking marriage.

"I would not be at all surprised to see Jen and John make it legal sooner rather than later. In fact, I would be shocked if they didn't tie the knot before her 40th birthday in February."

The source also adds that no one should be surprised to see Jen's once estranged mom, Nancy, at the ceremony. "Jen and her mom are taking baby steps toward a full reconciliation," the insider reveals. "It's something John has really encouraged.

"Jen and Nancy are probably never going to be close, but I think with John's encouragement, they may declare a truce - at least for Jen's wedding day!"

And since meeting John, the former 'Friends' actress' life has been all about change.

"It took a while, but Jen is finally getting her life in order," the insider is quoted as saying. "She has three movies coming out in the next six months. She has a top-secret business venture she'll be announcing before the year's end.

"Her new house is finally nearing completion. It's like her whole life is coming together and a wedding will complete the picture."

Jennifer, 39, and John, 30, have been dating since April this year.