Didn't expect Nia to basically go straight to sexual assault. "Erika actually enjoyed it" doesn't make it any better, she still believes she sexually assaulted her friend and seems to have no bad feelings about it just because she thinks she's the only one who knows. Not a fan.
Plot twist : she really was hypnotised and was made to believe she choose to let herself be molested, and the end indicates she is still being influenced.
Not really a plot twist; that's more or less how real hypnotism actually works. But I guess this is magic so the rules can be anything.