Gedo gave birth to juubi and nagato

[TheWillofFire]

The seed to the plant gedo was madaras EMS

 

[TheWillofFire]

We dont know if those are his real parents
We dont know when madara knows about nagato, and it was before his parents

 

[TheWillofFire]

Anyways you guys dont have to believe this, these are just thoughts, im not askin for you to think this
Only to ponder on things like madara and nagatos relationship

 

[oShux]

We dont know if those are his real parents
We dont know when madara knows about nagato, and it was before his parents

Those are his real parents they looked just like him and on top of that there aren't that many uzumaki clan members left

 

[Ultimate uzumaki form]

There actually a lot imo in their in hiding. Reproduction