It is not the first time Tiffany signed up for a teaching session, so we cannot call her a student, but the very fact that she is here clearly proves that she still wants to learn from the professor of fisting, Nikki Thorne. Or, maybe she simply got addicted to being fucked by a mega sized dildo and a slender hand, because it makes her cum so hard like nothing before. Tiffany Doll, Nikky Thorne (Teaching Tiffany Doll / v16316 / 11.11.11)