My. Niece

I have a niece about 25 years old and I live in a different city and don't see her much but I see her on Facebook. She has always been kind of trashy and I feel probably a bit slutty. She'll talk about ** and sucking **. Once when she was much younger she sent me an I'm claiming to be an 18 year old girl. I figured it out though. I wonder where that chat would've gone if I fell for it. Anyway, looking at her pics and reading her posts, I would really like to ** her brains out. I know, its family. She has an older half sister that isn't blood related to me at all and I ** her when she was in her late 20s/early 30s. It was kind of taboo but totally hot knowing I was ** a chick that always called me uncle. She had a crush on me since she was little. She told me if I had been around when she was a teenager I couldve ** her then, and I would have. But anyway, I would just love to ** this other niece.