Jon Cryer spilled all the details about witnessing his former Two and a Half Men co-star Charlie Sheen’s meltdown first hand in his new memoir So That Happened.

Now that Men is over, Cryer clearly felt comfortable with discussing Sheen’s downfall. In a long excerpt obtained by The Hollywood Reporter, Cryer writes about Sheen’s early days on the show when he was still married to Denise Richards up until his firing.

During the first season of the show, Cryer wrote he got a knock on his trailer door from a panicked Sheen, whose then-wife, Richards, showed up to set unannounced. He handed his co-star a bag of porn and asked him to hide it for him.

“I was prepared for the weirdest, but it really was all pretty tame, some of it just topless mags,” Cryer wrote. “Really, if this was the worst I’d have to deal with regarding Charlie’s vices, bring on the bags of porn for me to hide.”

He went on to write about Sheen’s dabbling in prostitution, which he’s been open about.

“I was in a bad state right after my divorce, and I certainly didn’t feel dateable. I decided I might as well pay someone for company and certain intimate pleasures so that I could at least get my equilibrium back with the opposite sex,” he wrote. “Charlie suggested a few online purveyors he used, as this was when prostitution was gaining a foothold on the Internet.”

Cryer even wrote about Sheen’s 2009 Christmas day arrest, publishing the texts they had back and forth.

When Cryer reached out to Sheen, he wrote back, “Thanks bro. Yikes — f— me, wut a bad day … I'm flying home tonite. I'll try to call over the weekend. Shower rape was bad but the food was okay. Hair and makeup for mug shot got there too late.:And I had same bail bondsman as Kobe. … No joke … 🙂

When things started getting really bad with Sheen with his substance abuse and public meltdown, the network brought in two executives to assess the situation.

After messing up his lines during the taping, “Charlie chose to walk out, still in full makeup, get in his car and have his driver take him home. He left Bruce Rosenblum and Peter Roth just standing by his trailer. And with that, we all accepted that something was truly broken here, that Charlie couldn’t be counted on to even go through the motions anymore. That was the last episode of Two and a Half Men Charlie would ever shoot.”

image via INFphoto.com