Well, because Nala is Simba's wife, I think Simba would be heartbroken
that Nala would want too have cubs with another male that wasn't him
but because they were his wife's children, I think he would let them
live because he wants Nala too be happy and letting the cubs stay in
the pridelands would make Nala happy if she allowed herself to have
them with Kovu in the first place.

There's no way to even think about that... Ew!

I think you just want some attention. You keep putting
pointless and impossible and plain sick things on the
questions. Disney is a KID FRIENDLY company er whatever, and
wouldn't do those kinds of things,so please stop asking
questions like that and dirtying little kid's minds

personally i think you just want to put a stupid question in
here and they wouldnt because kovu is way way way younger
than nala and yea that would just be stupid for them to do
that and Disney wouldnt turn it into a like a soap opra