It doesn't matter if she says she's into "short term amusements" because monogamous ppl can also be into this until they find someone they want a committed relationship with. There's also a difference between being into bdsm and wanting an open relationship. Polyamory and open relationships aren't kinky, just like monogamy in itself isn't kinky. There's often more to these relationships than just sex, though with the way bg3 displays them I'm not surprised ppl are getting confused.
There is enough established in act 1 with SH's bdsm comments/reactions to make a case for her being into it. Though when you're leaving the loviatar priest she does say "Whatever YOU'RE into" leaving room for some interpretation. If SH had a bdsm scene with tav in act 3 this wouldn't feel out of the blue though.
However, there isn't anything established with SH being into an open relationship prior to act 3. This sort of thing needs to be made clear in act 1, so it doesn't feel so out of left field and waste anyone's time. Some people can spend over a 100 hours in game before even reaching act 3, so if they find out the one they've been romancing all that time is suddenly promiscuous and "incompatible" that's just disrespectful to them and can ruin a whole playthrough. After all, by act 3 you're locked out of romancing someone else, such as Lae'zel or Karlach.
Speaking of Karlach, she's also the only other one besides Tav that SH expresses any attraction to prior to the brothel scene. It's a little odd that SH has all that time to flirt or just generally show any interest in Halsin in acts 1 and 2, yet she doesn't. And if she's so into casual sex, why doesn't she sleep with anyone at the tiefling party, if left unromanced? According to her, "there will be time for penance later" so there's nothing stopping her really.
Of course, as we learn more about SH and Astarion, it becomes very clear that they have the most traumatic situations, full of abuse. SH is literally an amnesiac that is intermittently physically abused by her tormentor(the hand wound). It takes us the whole game to earn her trust before she beds us. But then the next day she's down for an orgy with strangers apparently. Honestly, any consent from either SH or Astarion in that situation is dubious at best. It's no secret that they're both willing to do whatever you want so they don't lose you. It just feels like taking advantage when they're at their most vulnerable.
I'm also confused as to why lesbians and straight men aren't included in this particular content? I paid full price after launch, yet I'm locked out of doing things that other players can? Imagine call of duty only let half their players access to a certain game mode that they all paid for lol There's no option to have a lesbian 3some/orgy yet they added beastiality and twincest instead? Wtf is that bullshit??? And I don't care how many lesbian npcs they have, it's not fair to exclude ppl from this player content. I don't even want to partake in this myself because I find it cringey, but it's the principle of it. Lesbians get excluded so often and I'm tired of it. But yay we get to fuck a bear whooo... I guess
Then of course, Larian also claims an orgy as "polyamory" using the common stereotype of polyamorous promiscuity, which isnt doing our community any favors. The worst part of all is how "inclusive" and "diverse" Larian claims to be but it's all fucking bullshit. This was the first game I bought from Larian and it'll definitely be my last.
