Jennifer Aniston has reportedly told friends that John Mayer is the best lover she has ever had.

The actress is apparently more impressed by her sex life with Mayer than with previous partners Vince Vaughn and Brad Pitt.

"Jennifer is calling John the best ever lover," a source told the National Enquirer.

"In fact, she can't stop raving about his skills between the sheets - insisting the sex with him is way better than it was with Brad during their four-and-a-half-year marriage."

Aniston's relationship with the musician is allegedly helping her finally get over her divorce from Brad Pitt.

"Only now, in John's arms, does she look even close to finally putting Pitt in the past tense," added the source.