The 27 year-old actress revealed she wrote the list of alleged ex-lovers list because it was "her fifth step in AA at Betty Ford."
The 27 year-old actress appeared on Thursday's episode of 'Watch What Happens Live' and was asked three questions by host Andy Cohen in the show's 'Plead The Fifth' segment.
One of those questions did address the list of the A-List celebrities she has bedded.
Surprisingly Lohan, who was at first hesitant to discuss the sex list, finally opened up about the truth behind it.
"I cannot confirm or deny it," she initially said. But the 'Mean Girls' actress quickly had a change of heart, as she said, "You know what? I'm going to get serious for a second."
"That was actually my fifth step in AA at Betty Ford," she explained. "Someone, when I was moving during the OWN show, must have taken a photo of it. That's a really personal thing and it's really unfortunate."
"I talk about this on the last episode of the OWN show," Lohan added. "To be continued."
The lengthy list, which was first release by In Touch last month, included huge stars such as Zac Efron, Orlando Bloom, Justin Timberlake, Adam Levine, James Franco, Heath Ledger, Benicio Del Toro, and Colin Farrell, plus many more.
"The fact that that happened was not only humiliating, but just mean," Lohan said on the Bravo TV show.
But one name on the list has come forward and claimed the troubled star is lying about ever sleeping with him.
While James Franco discussed his new poetry book 'Directing Herbert White' with Los Angeles magazine, in which he talks about other celebrities, the 35 year-old actor said it was nothing compared to the "lies" Lohan had told.
"I didn't write anything bad about them," he said to the magazine. "And Lindsay herself has told lies about me with her people-she's-slept-with list! So I feel like what I said is much less than what she's said."