Lindsay Lohan Bangs Charlie Sheen ... on Anger Management Set

Despite a busy schedule of drinking, clubbing, mauling Avi Snow and court dates, Lindsay Lohan actually managed to fit in some work!

The actress filmed her guest appearance on Charlie Sheen's Anger Management, showing up early no less and charming the cast and crew.

Her first scene? In bed with Sheen, after they'd just had sex. 

According to a TMZ source, "Lindsay knew her lines cold and her timing was perfect. She's really funny." Well, at least by Anger Management standards.

She was also "incredibly nice," spent time taking pictures with the crew and "proved she has talent. 

Talent yes. Good judgment, no. But baby steps.

The star played herself (that takes a lot of talent) and wasn't exactly in an unfamiliar position, having also boned Charlie Sheen in Scary Movie 5.

Norwegian Guy Theorizes in Hilarious Reddit Photo saying Charlie Sheen is My Daddy

A 23-year-old Norwegian guy thinks Charlie Sheen may be his father.

Certainly not unreasonable, based on the circumstances he explains.

His theory has gone viral, too, thanks to this hilarious Reddit photo:

The picture really speaks for itself, but a few things do stand out:

•  His English is great, save for his spelling of "stewardess."

•  He's not a fan of his "dad's" show Anger Management.

•  He certainly knows how to spread his message.

•  He really does look like a younger Charlie.

•  Would anyone be at all surprised?!