The fairy continues.
"You punishment will be..." she says, then laughs.
She continues, though:
"A whole new level of jinx."
You look at Anita, hoping to guess from her expression what that might mean. But she looks as confused as you are, from said expression upon her face. Hopefully the other fairy shall explain.
"As you know full well, Anita, your actions have led to an age regression spell. The magic to cancel THAT is available, but rare and complicated. Not that I see anything wrong with such a situation. I find it very, very strange to want to be older. But at any rate, your actions bar you from being given this counter-spell. You clearly do not deserve it. As for the other..."
She peers at you intensely.
"Your punishment will be less than Anita's, but you are here to stay. We cannot tell who might believe you if you talk of us in the mortal world."
"I won't say anything!" you say desperately. "I swear! Who would believe me anyway?"
"We cannot be sure what you might say, even unwillingly, and who might actually trust your words," says calmly but firmly the authoritative fairy.
"What is this jinx anyway?" demands Anita in indignation, her annoying arrogance returning.
"You shall both be reborn, in the fay world, at my choosing. You will grow up without your memories yet will come to know each other and love yourself as sisters, if I decide not to make you sisters in person. Or brothers, if I don't take the decision to make one or both of you males. It will be down to me."
The prospect of becoming male again very much pleases you, even if Anita looks thoroughly disgusted. Being reborn in the fay realm and losing your memories sound terrifying, though. So getting your penis and testicles back sound like a small consolation.
"After you've met again and fostered an exemplary friendship, or love if plan to make you lovers, I will come back to give you back your memories and history. Then, you'll be able to chose: your new life or get your appearances from the old one. Not even your new parents will know who you once were. I shall give the sentence immediately!"
Both you and Anita look similarly appalled. What?!!? Reborn as fay creature and become a BFF, or worse, lover, with that stupid fairy who brought you to this humiliating situation in the first place? Losing your memories? Hell, no! You are about to shout your protest very, very loudly but it's too late. The spell hits you and you know no more.
Yes, you know no more, with no memories of who you were, but you are not dead. Far from it. But for the moment, you are a foetus. The only thing you know is that you are warm and safe and for the moment, it is enough.