Play the good wife

You can't endure the humiliation of his sexual desires, but you find a solution.

You have skill with your hands and your big boobs are an advantage.
You easily manipulate him and you provide your husband with incredible handjobs and boobjobs.

However, he knows how to play his cards... when you ask his favor with the wizard, he slowly convives you to give him oral sex.
You think that you can endure it, and soon you will forget all this life.
When his mentor falls asleep in his room, you take off your clothes, revealing your beautiful body, and you take his cock inside your mouth.
You feel his warm clean cock, and you massage it with your tongue and lips, you lick the shaft, his testicles, and in less than 5 minutes you start to taste his precum. A few more strokes and you feel his warm cum over your mouth and face. You swallow it and when he watches your little show, he's extremely surprised, and his attitude changes.

He asks you to stay with him, to form a family, and explains that he never meet a girl like you.
On his knees, he says that at least, let him cum again in your pussy.

You accept, but you have to take some precautions.

You can drink a potion to avoid pregnancy, but he can discover it and your plan will be ruined.
You can decide to don't drink the potion, however, you have a risk of pregnancy and this will affect your future plans, even if you can return to your world.