Can a parent prevent their children from meeting the OW/OM?

[Hippee]

Have a friend who doesn't want her XH to introduce the children to the OW. Can this be done through the courts? I can't see that it would be, and I hate to think of her wasting money on lawyers if it isn't actually enforceable.

Her attitude will do more harm to her children. She should consider that.

Thanks everyone - you've answered my question and reinforced what I already thought. Still not sure what to do with this, but at least if she asks my opinion, I'll be a bit more prepared.