Both my daughter and I have Amazon accounts, she has a Kindle account too as well as a Kindle reader. My ? is on both my mac and iPad she has them on her Kindle account as well as on her Kindle and her iPad, can I open a Kindle account on my Amazon account on my mac and iPad? I know I could just pay her for any books I buy but would prefer to use my our Amazon account, just seems more simple. I guess what I'm asking can there be 2 Kindle accounts on one device. I don't have a Kindle.