Ashton Kutcher, purveyor of blackface, keeps "a huge prosthetic penis" in his trailer on the set of CBS's Two and A Half Men.

The mildly surprising revelation came out on Conan last night, where Jon Cryer explained how the pair made a particular scene — where Kutcher is supposed to drop his pants and be fully nude — more "shocking."

In the very first episode that Ashton was in, there was a point at which he was supposed to drop trou and be completely naked in front of me, and we didn't know how to that in front of the live studio audience without him actually being naked…We had to cover him up somehow but it still has to be shocking.

And then Ashton pops in with 'oh, I have a huge prosthetic penis in my trailer.'

Kutcher explained:

I had these web shorts that I did for my company…and one of the things we did was this sketch called Naked Man. We had this guy and we had to put on this prosthetic unit to make him look like he was completely naked.

This would have been a much better story if James Franco told it.