That's a great idea with the slow burn but what about male pc since i don't think riya is into dudes unless its been stated she has no preference
I dont know what Franks will do, but I'd assume he wouldnt lock off Sub Riya to just females. My idea is assuming that there are no restrictions to the path.
The only donts for Sub Riya that I know of is Bimbofiying her, which Franks has said no to in the past. But still it only matters if Franks likes the idea, which I dont know if he does.
Ill say it again, whatever he does Im sure it will be good. We just have to wait and see.