I couldn't think of a better title for this:
I thought it was interesting when I heard Nikki Hunter mention on Night Calls recently that she doesn't really do anal all that often in her personal life, given her talents for it in her scenes. I think there was another show (this one was a while back) where she says that she doesn't enjoy receiving oral sex very much either. This surprised me, as other anal queens like Katja have talked about being into it in their personal lives beforehand, and gave at least the implication that they enjoyed it regularly off screen. I know there's also a few actresses who didn't do it at home until they did it for a scene but reported adding it to their personal repertoire afterward.
Are there any other actresses known for doing things on camera that they don't really do at home? I'll just accept ATM as a given.