>>54876398The text is what volume 2 opens on, it's not what volume 1 ends with.
And it's not like she has a habit of having protected sex with Calem and rawdogging everyone else, it's her first time doing it in volume 1 and the first thing she says after that is "I should rawdog Calem when we next meet".
So really, the swinger part overlaps with some elements of NTR but it doesn't feel like it's catering to them.
Calem doesn't give shit. When Serena tells him they're gonna bang other people, there is no focus on him and he doesn't appear sad or powerless.
He first seem to look down on the idea of sleeping around for favors, despite fucking Shauna after every date (where he supposedly pays the bills), which is more or less the same thing, and he gets called out for that.
There's no secrecy, no betrayal, no humiliation, no power play.
It's just a swingers into vanilla story.