Sara and Serena (not my characters)

my friend's characters Sara and Serena. (Serena is the little one)  Serena is form the future and had to travel back to the past. she is also Sara's daughter.  needless to say Sara didn't take it lightly when she met a girl who not only was form the future ,but was her DAUGHTER form the future.  at first Sara didn't like Serena and thought she was a bit of a brat, but as she got to know her better she found out that she liked her. (good thing too seeing as in the future she's Sara's kid)