i thought it was a random punishment
Ah, OK. What were you thinking it would be for...?
in any case that's fine.
Yeah, although we do need to work out someone for Shinji.
I also need to consider how to handle Rider, and also who the two other servants the girls and Shirou will summon will be. Possibly we could pair Toshi up with one of the other servants.
As for additional partcipants, I did have the idea of Shiki having slaves, notably Kohaku and Hisui as
actual slaves, and Akiha as a nominal slave. I mean, they're basically slaves in canon anyway....
They could participate, and have sex, which would add more variety. Also, Bazett would probably be involved with Lancer, which is also likely to lead to sex. And, Luvia may or may not end up fucking
her servant, depending who it is.
We also need to work out how this story will end. Will Shirou get the Grail (assuming it's not corrupted), and if so what exactly would he wish for? If not, how will he deal with the situation as it stands?