If you are truly her BFF, you should do it.
It depends how illegal it is.
depends what is it?
it depends on what that something is. if it's going to put you at extreme risk, then that is your discretion whether or not you do it. if she was trully your BFF then she wouldn't ask you to do something that might hurt you!
How dangerous is it? Life threatening?
i would always be their for my BFF. no matter what
you have to ask yourself if you trust your best friend enough to not want to put you in any real danger that you couldnt handle. but if she was your best friend she would be honest about why she needs your help
I'd be inclined to help, but it really does depend on the danger. Make sure you know what you're getting into before you do it.
Your BFF better make sure she's not getting herself into too much danger. It would be a shame if you worked so hard to get into Valemont only to be hurt by this "danger." And btw, all the people in Houses know that Sophie wants a key. So if that's the dangerous stunt she wants you to help her pull, you should say no.
there's a reason why it's dangerous and unless you want to experience what it is yourself, you shouldn't be breaking the probably existing rule that usually prevents people from being stupid enought to cross the line anyways........
SNEAK INTO THE PANTHERA PARTY!!! IT WOULD BE AWESOME, I WOULD KNOW! ;) JUST DON'T GET CAUGHT!
I would say make sure its not a super unsafe situation. And anon is totally right. If you get involved in all that key drama stuff could go pretty bad for you.