For the last three months all I've dreamt of, is having my father in law fuck me with his long thick veiny cock. The reason I know he's got such a beautifully big dick, is I caught him masturbating using a previously worn pair of knickers of mine, when he stayed at our house. I didn't let him know I was watching him and he still doesn't know now, but I wish I could feel that enormous shaft sliding in between my labias and forcing its way past my sphincter muscles. Every day, all day, all I can think about is having him fuck me any way he wants. I masturbate constantly imagining him doing it.