My mother walks around our home naked, and always acts inappropriate
Ok, my mum has recently decided to start going around the house naked. At first everyone was fine because, you know, she IS pretty hot to be honest, and she wasn't doing anything bad, that's how much she wore when she was born, and its her body, but skip ahead a couple of weeks, now she's being crude, like touching herself at the table and trying to chat up HER OWN SON (100% related to her).
This has been going on for 3 months now.
I think she wants to have sex with either me, my brother or sisters, or all of us.
So, is this attitude and behavior normal?
(notes: Our mum is 38, I'm 17, bro is 15, my twin sisters are both 13, my father has been dead for 2 years.)