I just don't see it happening in any form, even on Erynn's path, she wants it but the trauma from Ethan recording her is what is holding her back, that still exists even on dysLexia's path, and Lexi wouldn't know about that which is why she floats the idea.
When she says that she would chose Erynn for a threesome, i believe she's thinking on general terms, "if i were to have a threesome i would pick Erynn".
I don't think she's considering that she's gonna have to watch when her friend and the bf she loves so much fuck, she's already shown jealousy towards Erynn in multiple moments...
Heck when Alexis heard the song the MC made about Erynn, she essentially branded him with a bite, that's a not a sharing type i'm afraid.
PS: He has an Erynn song, but he only sang that to Alexis? WHAT A WASTE.
Sing this song to Erynn and the town of Madison Springs will get flooded lol
Regarding Lexi's path, I find it interesting just how quick she gets attached to MC, it seems like she begins to catch feelings way quicker than the other girls
It's more than that, I think. She obviously liked him from when they all hung out, maybe just as a mascot or whatever, but when he stole that kiss! Her eyes were opened. I think that's when the crush began. When she saw the cute guy on the plane, then it turns out to be you? She was just as doomed as Cara at the club.
According to her own words back when it happened she didn't like having her first kiss taken away without her having a say so on the matter.
Nowadays she likes it, because she dreams of a romantic Hollywood ending where she marries the guy who first kissed her.
And that's why i think she likes him so fast, the idea of a Hollywood ending appeals to her.
Some other girls like Erynn and Iris are also predisposed to like the MC(Erynn is only slow because it scares her).