Looks to me like she broke through- if she ever was under control- and is giving him a taste of his own medicine by simply using him for her own pleasure with no thought for him. She almost says as much.
I'd say she was never hypnotized and was actually quite willing to fuck him, or like @Zekana said, she is only partially under and her personality is asserting. If she broke free from non-consensual sex, I do not think her reaction would be so nonchalant.
Either way, it looks like they'll be done only when Alice is completely satisfied, and not a moment sooner or later.
Hehe, Alice-chan, how does it feel to be hypnotized into shaking your hips on top of a man?Huh? Hypnosis? What're you saying? This is just skinship.Right right, looks like it's working properly...Ah, this is a bit too stimulating, so could you slow the pace down a bit?I'll cum right away like this.Eh? No thanks.It doesn't feel good unless I do at least this much.Huh? You're kidding, right? As if a witch like me could be hypnotized.Just hold it in yourself....Eh? Uh, what? Alice-chan, the hypnosis is working on you, right?Eh? What is this? Wait, hold on, I don't know which this is. Hey, I'm scared, which—