It's been 10 long years since you last saw your big sister. You've grow up quite a bit, but so has she! You were 8 when she left with your dad when your mom and dad divorced, and she was 15. When you last saw her, she was a flat chested tomboy, but now, she's a busty beautiful woman!
That's the whole idea I came up with. Your parents split when you were young, and now, your sister is the girl of your dreams. This can go however you want.
Your character will be either a man, woman, or futa. Your choice!
(I can even be a futa, if you prefer. )
I have a few character personalities and avatars already, but new ones can be made if you present me one!
1) Pervert and/or Nympho
2) Bitchy Dom
3) Shy by day, sexual feline by night
4) Basically Akira Yoshii from Baka and Test
PM me if you are interested!