Sisters (FxF RP)

I was thinking of a role play idea dealing with sisters that are sending each other letters to each other. They do not see each other durng the role play unless it is really needed to add something to the story. It would be any time period, but, the current era could be fine. What type of sisters, wealth, and location we can think about that if you really are interested. It would be like sending emails to each other, or, the old way of snail mail. Just send me a nice pm and we can talk.