This has been a particularly bad week for celeb couples. Kate Winslet and Sam Mendes announced their split Monday, Britney Spears’ relationship with Jason Trawick is officially kaput, and now we hear that Jesse James is allegedly cheating on Sandra Bullock.

In Touch is reporting that the Monster Garage star had an 11-month affair with tattoo model Michelle "Bombshell" McGee while his Oscar-winning wife was in Atlanta filming The Blind Side.

Read Sandra Bullock: Family Comes First

The story goes that McGee had sent West Coast Choppers a friend request as she was seeking a modeling gig, and she was surprised when James sent her a personal email asking when she wanted to meet up. A week later McGee drove to West Coast Choppers in LA., and that’s where the real trouble began.

"We ended up on the couch," Michelle disclosed. "He wanted to watch movies, but I asked him, ‘What’s going on with you and Sandra?’ He said, ‘She doesn’t live here. She has a house in Austin. She is filming, and I can’t talk about it."

Michelle claims that she never would have slept with the motorcycle legend if she had known he was a married man. Puhleeze.

If this report is true, then we hope Sandra ditches Jesse ASAP. (In Touch)

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