I'm bi, and my family, meaning my mother, father, even my 13 year old sister knows i write smut (even tho she found out through going through my shit again) i told my mother, and she actually said she wanted to read them, and told me that i could make it as a author easily. my father hasn't given his feedback, but i know he doesn't mind. and my husband knows as well, he thinks its awesome that i write sexual material given to my sexual nature.
some people accept the fact that you would have a awesome talent such as writing, some people dont. its a chance really when you tell them what you write, because of the fact that you don't know what they will say, wether they like it or not.