Tattoos

Recently, my sister got a tattoo. It's a chinese symbol that says 'love' on it and it's on her ankle. How come she gets a tattoo before me? I've wanted one since I was at least 14 and she wanted one but she never really knew what she wanted. I'm still think on how I want mine designed and where I would put it. All I know is that I want a tattoo of a wolf and maybe a full moon in the background or have a vampire next to it and make the vampire and wolf as one person. I think either my shoulder blade or left arm would do good.