Ok. Ok... I understand what you mean about thinking ahead for your birthday. My birthday (16) is in less than a week and I decided what I was going to do last year in about December. First what I did was let my mom know in January how much this birthday meant to me, then I got my family involved... Her mom and sister...Always a clencher... However, with a co-ed sleep over I think that you have to make sure that she understands that your intentions are pure for one thing and also well thought out. Find out about some things that yall could do, what you all would eat ect. make the plans for her... or that at least works on my mom.