I am getting this day 1 when it launches on Steam.
I have two suggestions, maybe for DLC if it's too out of scope right now
1. Add a prostitution/hardcore slut route:
Anna thinks we need more money and you can suggest prostitution so that we get paid AND get photos for Starmaker, so win win. It could be before she gives in and gives the player a BJ and frame it as her really wanting to explore her sluttier side.
It could start off small with like a glory hole and just handjobs/blowjobs and it steadily gets more and more involved where Anna takes clients to a room in the Hotel or even like the Park or the Forest. It's just one person at a time then she wants more and so it turns into gangbangs and like, running trains on her. In the beginning you might have to go and buy condoms since she still wants to be cautious but during the scene she gets so into it she removes them/tells you there's no need for condoms so you can increase the price.
Basically, have a scenario where it starts off where Ana meets one person here and there (kind of like during the later Park scenes) but then it evolves into having a few different locations where you can get Anna repeatedly gangbanged/have trains run on her. It'd be great to have like a thing to buy maybe like a price list (or even just writing that on her body with a sharpie - you could also use that to keep count of how many guys came in/on her.
2. Add a brothel:
This brothel would first have NPCs the player gets to know/has sex with but then Anna goes around to see what its about because the player looks/seems different after going there. Then Anna wants to work at the brothel - you can even add a storyline where Anna isn't at home for a few days and you go to the brothel to see that she's become super popular there and busy all the time. Maybe there's recorded footage and you deal with the brothel's Madam to split the revenue and you can even set up events to promote the brothel like Anna is free to use for like a weekend (or even a week or longer). There you could the more insane like 10/20/30+ guys running trains/gangbanging her. You can even maybe move the studio there and help other women with their starmaker pages (just like as quests, not a whole other Starmaker profile etc).