It seems like the dialogue that appears when the sim drinks nectar, changes.
First, the dialogues are like "All nectar tastes the same to me", something about mentioning the three difference colors of nectar, etc...
As the sim drinks more nectar, it becomes:
"The supple amount of ..." or "the hint of blueberry..."
Is it just random? or the amount of nectar tasted by the sim really affects the dialogue.
Thank you and have a nice day!