OFFICE BOMBSHELL John Krasinski’s The Office character Jim ‘nearly had an AFFAIR during marriage to Jenna Fischer’s Pam’ on show

THE Office nearly turned out very differently for Jim and Pam – as a new book reveals John Krasinski’s character was supposed to have an affair in a ditched plot line.

Show creator Greg Daniels wrote a story line where Jim would cheat on Jenna Fischer’s character Pam as the beloved couple’s marriage struggled during Season 8.

The revelation was made in a new book titled Welcome to Dunder Mifflin: The Ultimate Oral History of The Office, People reports.

In the book, written by Brian Baumgartner who played Kevin on the show and executive producer Ben Silverman, it came out that Jim was supposed to cheat on Pam.

Fans will recall a Season 8 episode of The Office called “After Hours.” In it, Jim takes a business trip to Florida.

During the trip, he’s tempted by Dunder Mifflin’s temporary receptionist Cathy (Lindsey Broad).

The storyline was supposed to go much further, however.

John said in the book: “Greg said, ‘We need to come up with a good Pam-Jim story line.’ And I said, ‘I think we should get borderline separated, and I think we can do it and then come back.’

“He was so on board with that.”