If you can throw 8 characters into it you could do a little tournament. In my head these matchups would be the most entertaining to explore:
Asterion vs Nikos - a secret dialog could open up if you sent Asterion to him in the beginning of the game. Roles are reversed since Nikos no longer has it in him to bite and envenom Asterion and it's an easy win but this was that last thing Asterion needed to fully let go of all anxiety about Nikos being in the hotel with him and it's a moment both of them needed to fully overcome any lingering distrust.
Storm vs P - I think it's fun for relationship building, Storm wins so he and Asterion can lock horns and establish that mentor relationship Asterion has with him when he wins the semifinal. And I can see P surprise winning because of his police training but having a semifinal scene with Asterion and Storm would be more interesting?
Luke vs Kota - if you went with a classy hotel Kota wins, if you went with a fun/horny hotel Luke wins. Or just have Kota win because Luke had it coming to begin with and Luke is easily distracted. You can't not do this match up after their fight early in the story lol.
You vs Robert or Themba or Khenbish. Who of the three you face depends on who you have spent the most time with, allowing for replayability.
Asterion, Storm, Kota/Luke, and you make sense as winners here. Asterion vs Storm and Luke/Kota vs you for semifinal, Asterion vs you in the final round. You winning both rounds and getting to wrestle being the ideal outcome for the relationship with Asterion. If you do decide to write sex scenes with Asterion in the future this could be a good moment where role dynamics are decided. You winning means you are dom, Aster winning means you're a sub, a tie meaning you'll both be vers.