Also, the idiom, "twist [someone's] arm" means to pursuade or coerce someone into doing something that he/she doesn't want to do.

It means you did something to make her do it. Usually it means you asked them to, but it doesn't matter how. I can get someone to do my work for me by tricking them. I can get someone to help me (there's no bad meaning here). I will get my assistant to work on it. Or I'll have my assistant work on it. Can I get some help here? --Very informal, in some contexts a little bit impatient way of speaking Is there any way I can get you to go with me? --asking how you can convince someone to go.