She wants

"Now listen here. My dad thinks he can replace my mother just like that, and now I'm stuck with some loser girl who is supposed to be my sister. So you are going to do exactly what I say or I will leave you here and say you just ran off. Good luck finding your way home with no money or ID." Kim spits at you.

You know you should do something and stand up for yourself but she is right. You are completely lost and your US money will be useless. You have to do what she says. At least for now.

"Ok what do you want?" you ask

"Ah, an obedient one aren't you. I'm going to have a lot of fun with you." she beams "Now we do need some clothes for my new toy."

She leads you to a store that seems to sell a lot of very revealing clothes. She grabs you roughly by the arm and pulls you into the change room at the back. "Strip." she says staring at you.