How boons and curses were responsible for the birth of Pandavaas and Kauravaas? A king was cursed to death if he tried to get sexually involved with his queen. How earthen pots acted as an womb to give birth to 100 kauravaas?

How boons and curses were responsible for the birth of Pandavaas and Kauravaas? A king was cursed to death if he tried to get sexually involved with his queen. How earthen pots acted as an womb to give birth to 100 kauravaas?