Jennifer Aniston is pregnant with John Mayer’s baby.

According to Australia’s New Weekly Magazine, the former Friends star, 39, recently rekindled her short-lived Summer love affair with the rock star after discovering she is expecting.

“Jennifer is over the moon,” says one snitch. “She doesn’t want to be a single mom, so she is willing to give John the chance to prove his parent potential.”

The couple has been seen out on several dates as of late, while Jennifer’s figure is said to be looking a little more rounded than usual.

“John has written a song about their time together and played it to Jennifer who was incredibly touched.”

“He has cut right back on his drinking and has pledged to quit smoking roll-up cigarettes - two things that really annoyed Jennifer.”