I even have an editing account there, would you believe it - though I've only added one entry so far.
Today, I stumbled upon a trope that really fits what Hypnotic Erotic, and the Cassie / Alison story in particular, is all about.
"Also, it can overlap directly with actual mind control. In many instances, More Than Mind Control is simply a method of making the process of the takeover easier, because by removing their resistance to your ideas, you remove the struggle in taking control of their thoughts. By having them submit to you, they essentially hand their free will over to you, making your spell or device much more effective on them. It also makes it harder for them to revert, because they now have an active resistance towards their own original beliefs.
"More Than Mind Control requires charisma, finesse and a lot of patience, but villains usually don't mind because they find it so much more satisfying. They also get a great deal of amusement out of telling the victim's friends, "I didn't force him to do anything he didn't want to do." It's also more resistant to the powers of friendship and love. Plus, it's just a lot cooler to watch. Villains don't even necessarily need special powers to do it, if they can goad the hero into doing something they'll regret by pushing the right buttons. The Corrupter in particular is a master of the art."
I particularly adore the last sentence in this passage.
Go ahead. Taste my wares. What possible harm could it do?