Nihongo dame desu
Oh, and if you don't approve of your husband looking at racy pictures of someone's wife, perhaps you should take that up with him, rather than making sure no one else can look at them either. Weird. I can't imagine. And for the XO to take the photos is insane. How about telling the guy you've gotten some complaints and asking hit to be a bit more discreet, if you must do something?