If anyone is struggling with unlocking the "Daddy's Girl" Beginning, I finally got it.
I had all the pre-requisites done for this. I started on the "Single Father" beginning, seduced 40+ to get my alignment as high as I possibly could, did Britney, hypno'd Jean motel to recruit as wife then chatted to daughter and got goodsex. The Britney route and then chat to daughter is the only way I could find that doesn't use incubus skill to fuck her.
After this, I made a save. Then tried multiple "Sleep until season end" lines, and the only way I could get the wedding bells to pop was to use the oblivion parasite -> people you've met. You need the alignment/disposition score to be as high as possible (I needed to cheat in the end) to make "... your own daughter" to pop up.