Mainly my incest fetish comes from my mom who used to flirt with me and tease me in all kinds of ways. She liked to call me into her room for something trivial while she was getting dressed. I would get to her door and she would be putting her pantyhose on or stuffing her tits into her bra. While I was standing there with my heart pounding she would say something like How was your day? or Could you turn on the oven please? 

 So even now my ideal woman is still the mama and grandma type. Not that I don't like sleek sexy young women but a woman 35+ years, kinda chunky, big tits, hairy (like my mom was) is a surefire turn on for me.