I have a 19 year old stepdaughter which comes in after late at night, gets up at midday, gets dressed and leaves without saying goodbuy. Husband is working away. I was looking for a phone charger and had to go into her room, just to discover my knickers with sanitary pads still attached to them on her bed.
I was shocked and disgusted. I know that she has asked my daughter to borrow her knickers as sd has run out of hers.
Sd has always used my husbands socks, pants etc but this is the first time I caught her with my stuff.
She is always using my hairbrush, dryers, hair straighteners but never knickers.
This is a step too far and I don't want this to ever happen again.
She is coming over today and I will have to have a serious talk with her.
I know that she will deny all knowledge and pretend that she didn't realise that they were mine.
how can I trust her if she is prepared to use my private stuff (probably took them off the washing line)
What should I say?