It's their rule.

[jaF0]

18/19 girl meets same age guy and wants to do him. Guy explains that his family has a special rule. He can't do her until Pop does her first and gives his approval. She's opposed but is begrudgingly willing to go along.

Then she finds out there are other rules in that family also.


Does she proceed?

 

[LupusDei]

18/19 girl meets same age guy and wants to do him. Guy explains that his family has a special rule. He can't do her until Pop does her first and gives his approval. She's opposed but is begrudgingly willing to go along.

Then she finds out there are other rules in that family also.


Does she proceed?

You have to move very slowly and gradually. People are willing to take small, cheap steps if there's even the slightest illusion of reward, and eventually, in hindsight, might have committed the previously unthinkable. That's how majority of frauds operate.

So don't say her she must be approved by Pop in that way. Just that she must be approved. Then, that it's ongoing test. Then, some small things. It's almost a reverse seduction. It's the girl who is made willing to do the Pop, just to win his approval. Then, whatever you have in mind, comes just as extension, and just "we do things this way."

Don't give her any real opportunity to step back, don't any little step to appear excessive, always held a greater reward in front, and possibility of punishment behind. And I don't mean spanking... People are very, very reluctant to lose what they have, even purely virtual things, and ready expend time, resources and will just to keep the status quo.

If you lead her the right way, she will follow anywhere.
"Was that hot and noisy place really Hell? I saw just your face all the way through..."

 

[Gamina]

Lupus Is right.

For example Dad needs to deem her good enough to date her son. So first time meeting him she is told he likes agreeable personalities. And the color x in clothing.

Then later maybe she has to go on a test date. And so on an on until the point of no return

 

[jaF0]

That can lead to 'Nope, not good enough for you kid, but just great for me, so you'll have to find another.'

 

[SimonDoom]

18/19 girl meets same age guy and wants to do him. Guy explains that his family has a special rule. He can't do her until Pop does her first and gives his approval. She's opposed but is begrudgingly willing to go along.

Then she finds out there are other rules in that family also.


Does she proceed?

If she doesn't, you don't have a story.

I can see this going two ways. You can make a it a long story with a slow, reluctant conversion to submission to the family rules and its depravity. Or you can make it a shorter, fun, gonzo sex story. It can work either way.

Either way, I suggest thinking about where you want to end up with this concept. What's the ending? What's the ultimate reader payoff. Once she submits to dad, what happens then? Understanding where you want to go with this will help you figure out how you want to get there.