I was thinking..
Since we know that Naruto summoned Gamakichi, who is the son of Gamabunta.. The slug could very well be the daugther of Katsuyu and the snake the Son of Manda..
If this is the case... I sure wouldn't side with Sasuke if I were the snake!.. I mean.. Sasuke summoned Manda so he could survive Deideras C0 explosion
.. If he summoned Manda to fight with him, and he then died in combat, it would be a different situation! But he was summoned just to act as a meat shield!
Since we know that Naruto summoned Gamakichi, who is the son of Gamabunta.. The slug could very well be the daugther of Katsuyu and the snake the Son of Manda..
If this is the case... I sure wouldn't side with Sasuke if I were the snake!.. I mean.. Sasuke summoned Manda so he could survive Deideras C0 explosion