I have way too many ideas for this game.
Emma
Something about the images just makes me thing her apartment smells really strongly of cum. There's a lot of stereotypes you're going with here, so I'm guessing the futa's are also going to cum buckets as well? On the same stereotype train, it also looks like she's being set up as an overt top. Like, not into full domination or humiliation, the way Angelica looks like she might be - but more "because she's so horny, and has such a big cock, and she cums so much - obviously she tops, right?"
So, her having ultra strong smelling cum, and being really into it, and wanting her partners to be really into her cum seems like it suits her. I think that also paves way for her to be a watersports option, which you've done in your other game as well. And she seems like she'd be into light sph - more centered around praising herself and comparing, than purely about the humiliation aspect.
Jessie
I get the impression she also wants you to drink her cum - but less because she's just a perv, and more because "it's nutritious, and good for ya'!". Assuming the milk jug she's lugging around is in fact for that - it feels like it fits her character to output a gallon at a time - and also, to send you some in the post to try.
Angelica
Didn't vibe with her personally, but she seems like she's into full master and servant.
I'm leaving it there, because I could really go on, and you've obviously already got your own ideas - but I look forward to the next version
