Neither Jennifer Aniston nor Brad Pitt have made public any plans for their respective wedding ceremonies, a new report says there's something they both want — an RSVP from George Clooney.

Clooney shares a history with both Aniston and Pitt. He was a friend of the couple when they were married from 2000 to 2005. He's also worked with each of them separately — with Pitt on the "Ocean's Eleven" series and with Aniston during a guest stint on "Friends."

But now that the couple has split and both gotten engaged to someone else — Pitt to Angelina Jolie and Aniston to Justin Theroux — they can't agree on whose wedding Clooney should attend, according to a report from Now Magazine.

"With Jen now engaged to Justin Theroux and Brad to Angelina Jolie, both betrothed couples are trying to persuade George to attend their wedding — and not the other's," the source said.

But despite the reported disagreement between Aniston and Pitt, the source added that Clooney would be happy to attend neither ceremony.

"Jen and Brad are fighting over George like children. If George had his way, he'd skip both," the insider said. "The truth is, he doesn't even believe in the institution of marriage, and he finds the ceremonies terribly boring."

Fans got an inside scoop about Clooney's reluctance to tie the knot when his sister, Adelia Zeidler, gave her first ever interview this week and opened up about her brother's personal life.

"If he was going to get married, he would want to be a husband and be somebody who would be there, who would have the time and the ability to focus on the family and the wife and the home and all of that," Ziedler said. "And in the business that he is in he has to be able to get up and go. The majority of actors don't really make their marriages work."