Crazy Cousin

I have a female cousin that used to encourage us to grope her when we were younger. She would press up and grind her ass on all her male relatives. I don't know why. She never let us fuck her but many times she made a few of her male relatives bust a nut on her ass.
Never could figure her out. I remember one night at a family gathering , when we were supposed to be sleeping she was just face down on the bed with us taking turns dryhumping her butt and creaming our shorts. I even saw one of our uncles pin her against his car out side and rub his bulge in her ass Crack til he obviously came and give her cash after.
She's currently in an open relationship with an older guy that just showers her with g*fts and cash. I spoke to her about what she used to do and asked her why she did it if she was abused. She laughed and said she did it for the same reason she does anything cause she wanted to . She loves getting groped in public to this day and intentionally let's strangers grope and grind on her in concerts and crowds.