My drunk aunt grinded on me while she was drunk.

This happened last weekend. | (21M) was out drinking with my dad at one of our local bars. I had enough drinks to not remember certain moments of the night. Then we decided to go to another bar a block away, and there we ran into my drunk aunt, whose name is Mia.. She was wasted out of her mind. As soon as she saw me she gave me no personal space or refused to talk to anyone else. I went into a cigarette lounge the second bar offered & she followed me. I sit down and she sits on top of me. One leg on each side, and it took her best friend and I a few minutes to convince her to get off of me. A little while afterwards she told me she remembered changing my dirty diapers when I was a baby and that I'm a mountain of a man now. She's never acted this way before and I can never look at her the same again. Is this just a drunk person being stupid or is this something else? She's doing porn, I'll just leave her here.