The main character says they feel rancid

Shrek, Fiona, and Donkey set off to Far, Far Away to meet Fiona's mother and father, the Queen and King. But not everyone is happily ever after. Shrek and the King find it difficult to get along, and there's tension in the marriage. The Fairy Godmother discovers that Fiona has married Shrek instead of her son Prince Charming and plots to destroy their marriage.

The King of Far Far Away has died and Shrek and Fiona are to become King & Queen. However, Shrek wants to return to his cozy swamp and live in peace and quiet, so when he finds out there is another heir to the throne, they set off to bring him back to rule the kingdom.