That would still be a different game.

They have no need to resort to prostitution. Financial or otherwise. Vivian's mom is a manager to a fairly successful formula one driver and even Vivian will have several job options. Yes, she'll be able to work as a sex shop clerk, but that's as far as she will probably go in that direction.
So the closest she can get is if you choose that she becomes Ms
Harper's submissive lover.
What's atractive about Ddos is that the mc can become an active if not outright dominant protagonist and take charge of the situation instead of becoming other people's plaything.
Even if you turn it around and consider Vivian pimps out other woman to female customers, I guess that's still out of scope of this game.