Reports that CIA Director David Petraeus had an affair with his biographer, Stephen Colbert said Monday, put a new light on a few things.

"It appears that the title of Chapter 5, 'Anaconda,' may not refer to a ground offensive in Afghanistan," Colbert said. "Whole different type of surge."

But beyond that, Colbert suggested that Broadwell's effusive praise of Petraeus, who resigned from his position last Friday, should cast suspicion on the relationship between every biographer who has profiled a famous person.

"We can now say with some certainty that Doris Kearns Goodwin banged Abraham Lincoln," Colbert surmised, before playing a clip of Goodwin asserting she thought Lincoln was "sexy."

But Colbert, who has penned two largely self-referential books of his own, did not spare himself, and decided to come clean.

"I had an improper relationship with my biographer," he admitted. "I spent a lot of time with the author of these books. There was a connection, and let's just say, he got a little handsy. And I did things I thought I would never do, but have been doing for decades."

Colbert's moment of contrition, aired Monday night on The Colbert Report, can be seen below.