The mother laid down some rules about her children and one in particular was no one is allowed in the house without the permission of the mother.
Amber called to tell me that she invited a guy over to the ladies house and they had sex in the bathroom while the kids were upstairs sleeping.
Amber is married and the guy she had over is a guy she met in a club about a month ago. I've met Amber's husband on a few occasions and he does strike me as the kind to fly off the handle, and although he knows she cheated on him in the past he does not know about this situation. The guy she had over has been in jail, though for what she doesn't know.
I don't know the mother's phone number, it was months ago that she called and it's no longer in my phone. I've also only been to the house once and it's down in a neighborhood of about 5000 homes so unless Amber gives me directions again there is no way I could figure out where exactly they live.
Should I say something to the mother and if so how do I go about finding out her info? Or do I let this go? I am also mildly worried about what Amber would do if she found out that I was the one that told the mother. I've met the mother and she doesn't strike me as all that smart so even if I asked her not to tell Amber that I was the one that told her I could still see her telling Amber anyway.
Of course it goes without saying that I am severing all ties with Amber, I don't want to be in the middle of anything when her husband finds out.