Michael Hainey interviews Richards in GQ:

Jagger_richards_2005_400qDidn’t Mick screw around with Anita?
Possibly yes. Probably during the making of that movie [Performance].

How did you and Mick get past that?
At the time, I didn’t know and I didn’t really care.

You didn’t?
No. I mean, Anita and I, it was never like we were ever married. And, uh, you don’t try and ride a bitch like that, baby, without thinking that they’re not gonna—you know. Had it. Been there. It’s a load of crap, you know? I mean, I’ve done Mick’s chicks, too.

How many chicks do you think you guys have in common?
After Marianne [Faithfull], it’s a stable. [laughs]

More than five?
No. I don’t want to mention other bitches’ names, because I’ve stolen quite a few off of him and, uh, he’s nudged his way into my lot, but not significantly. After the Anita thing, I made a point of stealing every bitch he had. [laughs]

But not his current one?
[whispers] I wouldn’t take that one on!

At Mick’s gayest, how gay was he?
It was camp.

Yeah. It was all… I really have no idea if anyone ever shoved it up the shitter.

Not even Bowie?
No. I mean, dickering and dangling… I’m not there watching it every day. You know what I mean, mate? But there was, at the time, a load of excruciatingly painful campness that went on.

More here.  [Thanks SA.]