[quote="Cherish"]I would say she is Scar and Zira's, but of course I don't mind other theories. I don't think Scar loved her very much or paid too much attention to her.[/quote]
Well, if Scar never loved Zira to begin with, then, why would he mate with her if you say Scar is Vitani's daughter?
And, of COURSE NOT!

I don't why fans like to think Vitani is Nala's daughter; is it because they both have blue eyes in
Simba's Pride. Zira is her mother, and her father isn't Scar as Vitani never acknowledge Scar as her father in the movie nor in the deleted scenes. I offered my theory on the "If not Scar, who?" forum. Also, I read on the
Zira page on The Lion King Wiki that there was a Facebook statement made to Darrell Rooney (director of
The Lion King II) asking is Zira Scar's mate, and he said she wasn't, as she is just a follower. Finally, it would be out of character for Nala to abadon her own daughter, and plus, Nala would have not attacked Vitani during the fight sequence knowing she is her daughter.