Work with his sister

At the top of the stairs, you find her, the wizard’s sister.
She’s around 40 years old, curvy with a womanly figure, dressed in a tight suit. She has warm brown eyes, smiles at you, and has a gentle but confident presence.

"Ah, I'm waiting for you, finally, someone with sense, my brother can't help me with this kind of magic"

You explain to her that you are gathering information about the stone, and you know that the church is a problem.
She smiles and tells you a gossip "The brute of the blacksmith is hammering out a gauntlet for the Noble Lord… he has an obsession with a teleportation stone... it's nonsense, the stone is only useful to open portals to other dimensions, but only the dimension of the one who is holding the stone, can you understand? for example if an Angel throws the stone, it will open a portal to the Celestial Planes, and if a Devil throws the stone it will open a portal to the Nine Hells" She laughs and covers her mouth politely *"If the noble lord throws the stone it will open a portal to... This town!!" and she laughs again.

Then, she asks you to help her with her materials and don't speak to her, or she will pass the whole day telling you gossip and his brother will be mad, because he thinks that she's lazy.

You feel something weird, a compulsion, you help her with the materials, moving them close to her. Then even if you want to... You can't talk.
She smiles and thanks you, she's not aware of her innate magic! This is a big problem!!

Days pass, and you work for her. If she asks to test a suit, you do it, and she thinks that you are a kinky girl and offers you more and more weird things.

One day she offers you a tight suit with a ball gag and a nose hook, you accept it with a smile and she helps you to wear it, she confesses that it is hard to find a girl who shares her fetishes...
"I had a feeling you'd appreciate something... special," she says with a gentle tone

The tight elastic leather seals itself against your skin. The gag presses your mouth, and the nose hook is in place, stretching your nostrils. "Ah, lovely. Now you look perfect."

She steps back, admiring her work "Do you know how lonely it is to have tastes like mine?" Her voice is softer now
She puts on a similar suit and adjusts yours to be even tighter, now you can't move your hands.

"Please, can you help me now with... girly things?" she asks, her breath warm against your ear, rubbing her intimate parts with her hand.
You nod, and she moves, rubbing her pussy with yours, both of you covered by the suits.

That night is the first of many. She teaches you spells that make your clitoris explode with pleasure, potions that blur pleasure and pain, and the art of taking as much as you give. His brother thinks that she has found a new best friend and is happy.

And you... You are her silent lover, chained to her words; no matter what she asks, you obey with a smile, and you never return to your world.

Bad ending
Unvolutary charm ending