Mom keeps doing this

I've been pretty conflicted lately. I keep finding my moms panties in my own drawer. It's always after she cleans our clothes, now of course this could be a complete accident altogether, but I don't know. I've found her panties in my drawer more than once over the last few weeks and I don't know if it's an accident or is she sending some kind of message that she wants me to use them. What do you guys think? Is this an accident or is she trying to give me some sort of signal?.