You are offering your daughter sensible guidance. You'll have to decide if you should speak with the other girl's parents about what you've learned. Will they be receptive to this, do you think? It might be useful to
simplySimply sleep ask to have a chat with them about what has occurred, without implying any notion of who instigated the contact. It'll make sense, of course, to monitor your daughter's contact with this girl. If you have confidence in her parents, there's no need to prohibit contact, but you'll want to be assured that there will be good supervision of the children, whether at your house or the other girl's house.