Jennifer Aniston to Guest Star on Cougar Town

Jennifer Aniston and Courteney Cox are reuniting, if only for a night.

The best Friends will appear together on the second season premiere of Cougar Town, ABC announced Monday. The episode airs September 22.

Aniston, who is supposedly dating John Mayer again, will play a "shrink named Bonnie" to Cox's Jules, executive producer Bill Lawrence said.

Bill describes her as a "Kind of a get-too-involved-in-her-life-type of therapist" and says of Courtney and Jen: "Those guys are so close in real life they kind of do that for each other anyway. Bonnie has the life Jules wishes she has."

Courtney Cox and Jennifer Aniston will share the screen again.

The role might be more than a one-off, too: "We're very intentionally implying that it's a therapist Courteney has been using for a while" Lawrence says. "So I'm crossing my fingers that if [Jennifer] has a good time it'll happen again."

This is great news for Cougar Town fans, and Aniston personally. She could use some positive press after The Switch bombed at the box office this weekend.

Somewhere, Bill O'Reilly is smiling ... and considering what issue to blow out of proportion next while swan-diving into a pile of cash, Scrooge McDuck style.