Board Thread:Questions and Answers/@comment-70.190.176.254-20150725120537/@comment-68.68.148.75-20180319235819

Michael also slept with Carol, his real estate agent. They met in Season 2 and slept together in Season 3. The woman who played Carol is Steve Carell's wife in real life. Michael and Carol had a short-lived relationship.

Michael had a one-night stand with Concierge Marie, the woman who greets him at the hotel when he goes to Winnipeg, Canada with Andy and Oscar in Season 5's "Business Trip."

Michael slept with Donna, the manager of the bar where the DunderMifflin crew hangs out for happy hour. This was in Season 6, and was another short-lived relationship.

Michael has, I think, the most sexual partners of all the main office characters, as least as depicted in the episodes, although we're led to believe secondary character Meredith has lots of indiscriminate sex, and therefore lots of partners.