The actress and new mom announced on Saturday at the Human Rights Campaign gala that she's always up for working with the actor and his renowned member.
"Your penis was a revelation," she said accepting the Ally For Equality award from the organization, "I'm available to work with it any time."
Theron and Fassbender costar in June's sci-fi epic "Prometheus," but she's referring to his revealing role in "Shame," last year's sex addiction drama that featured rather fearless frontal nudity from the Irish star.
"I have to say that I was truly impressed that you chose to play it big," she joked further, "most other actors would have gone small, trust me. I know because I've worked with them."
That's another stellar endorsement for Fassbender's package, which got previous accolades from George Clooney. But back to Theron's award.
Charlize turned up to downtown L.A.'s JW Marriot for the occasion, hosted by Chelsea Handler with appearances from Joe Manganiello and TV pundit Chris Matthews.
She touched on the fight for equality and its personal meaning (during her relationship with actor Stuart Townsend she said she wouldn't marry until it was an equal right), saying, "it's about something greater. It's about acceptance" and "I will always be your cheerleader, and I will always be your friend."
And the friendly vibe permeated the room. Fassbender brought a glass of cheer to the podium when he spoke, toasting the night and Theron followed suit. Here's to Theron and Fassbender's respective achievements.
— Matt Donnelly
Photos: Charlize Theron makes a toast during the Human Rights Campaign's annual gala at the JW Marriott on Saturday. Right, Michael Fassbender does the same. Credit: Frederick M. Brown / Getty Images.