I've read a lot of stories online about others and do find it hot to read. I'm not really attracted to anyone in my family sexually but have let several see me nude and enjoy teasing them but haven't done anything physical.
My sister and I started having sex with each other when I was 13 she was 19 it was fantastic and it still is even after we were married we still kept having sex
There are some good erotica stories about it. A few people have told me about things that have happened in real life, but I have know way of knowing if any of it is real.