Really? Come on, it was clearly implied it's Kion's grandfather from Nala's side. If this had to be Mufasa they would just say it's Mufasa...
I'm just wondering, why everyone seems to be okay with Kovu not being Scar's son because he and Kiara would be cousins and it's gross but at the same time massive amount of people are trying to "prove" that Nala's father is either Mufasa or Scar.
Hey, rabid relationship and incest fans