Stepdaughter's behavior ⇐ General

[Anonymous]

My new wife and I have been living together for two years; her daughter has been living with us for 17 years. She is a strong girl, developed in all respects, she is friends with a guy, she is sexually active. I’m kind of neutral towards her, no thoughts. Recently, my stepdaughter began to behave strangely; she began wearing a transparent top around the house (you can clearly see her entire breasts and nipples), right in front of her wife. The wife does not react at all, because... She often walks around the house naked in front of us all. And he puts it on on purpose and comes to talk to me, and sits at the table in it opposite me. What is this? Is there something juvenile about her? High level of trust in me? How to react?