Na,,, Just haul her out into the country where it's nice and quiet.
Don't ask her if she want's to shoot, not like a question.
Tell her, "If you are going to learn to shoot, here is your chance to start".
She'll say "ok" or she'll back out.
Don't make a production of it. If she says OK, then put the ear muffs on her, load the gun, put it on safe, hand it to her and see that she is pointing it somewhere safe.
Have her take it off safe. And tell her to squeeze.
It will make the good noise, she will jump a little, and what you are looking for is a little surprise and a smile. Let her shoot all she wants just off at a tree or into a berm.
Next time she will be ready for a range and some serious learning.
Sometimes all the talking does is heighten the anxiety. She just needs the experience first, she needs to see for herself that the bang isn't so bad, but she also needs to see you attentive to her reaction, supportive of any decision.
But don't ask women straight question, "do you want?" They don't always like questions like that, lead them to it, the offer is plain to see, she will go with how she feels and she will feel her way to what she wants. If she feels pushed she'll resist so just leave the door open and see what she does.