Sorry, I'm asking if this is like a thing that'll be understood to be happening off screen while you're pursuing the girls but before they're exclusive or whatever, I get that you'll have a choice to actually ever see futa content.
The only sexual content between the main crew members (Alice, Persephone, Elza, etc.) will also involve the main character in some way.
There may be flirtatious behavior or scenes with sexual tension between the main crew members that the player can either be a witness to or not, but that's as far as it goes.
There will be very little in the way of content "understood to be happening off screen", if that makes sense, especially involving the main characters.
-Pelorix