Hm....I agree with Kitty that what was happening in the memory really isn't a problem because it isn't actually happening in the roleplay right now and since Rin is remembering it there really wouldn't be a way for Saito or Shunsuke to comment on it. 

But if Solace did it too and everyone involved in it was okay, then I think what Kitty is doing is fine. But that's just my opinion.