Draupadi was also an avatar of Goddess Shree or Wealth who was the wife to five Indras in their mortal manifestation, that is, the five Pandavas. She was born many times for imprisoning the Indras. Her first birth was as Vedavati (the avatar of Swaha, Agni's wife) who cursed Ravana. She then came again as Maya-Sita, especially to take revenge from Ravana, while Agni hid the real Sita. The third birth was partial - she was both Damayanti and her daughter Nalayani. She married Sage Mudgala. Her fifth avatar was that of Draupadi herself.
How did Shree marry the five Indras in her other avatars?Also, why did she imprison her own husbands?
On a separate note, please explain why and how sometimes sons are considered as avatars of certain gods.