For me there's no attraction to my dad as i don't know him, but i was always sexually attracted to my grandad (not sure if that's weird to any of you, shouldn't be, judging by the posts on here).
From age 14 to 19 I wanted him to fuck me, he was quite a strict, dominant character, I hated him but wanted him so bad. He would lightly slap my ass when saying hi, once or twice properly grabbed my ass, or ask me to get things from under the stairs where i would have to bend over lol, and he often complimented my body. Could have been nothing but I'm sure there was something there.
Anyway, when i was about 15/16 and he was in his 60's i would seize any opportunity to sleep over at his and my gran's house... he would often come into my room in the morning to get things from drawers so a few times i would make sure i was awake and lower the covers below my naked ass so that he would see when he came in. One time while i was pretending to be asleep i heard him open a drawer then he moved slightly closer to me and just stood there for about a minute or two, heavily breathing, and then he left. Crazy how fast my heart would beat.
Nothing sexual ever did happen though, and he's no longer around. My biggest sexual desire now is to be throat and ass fucked by a dominant older man, i just wish it would be by him lol.