A source said: "When Paris saw the guys on the sweet stall she squealed. We heard her saying, 'Oh my, real life Smurfs. I always wanted one when I was a kid', before turning to her pal and asking, 'Can I take them home?'
"Then she added 'I didn't realize this is where they came from.'"
Paris - who has a menagerie of pets, including dogs, ferrets, rabbits and cats - reportedly infuriated the Russian dwarves with her patronizing "baby talk".
The source added to Britain's Daily Star newspaper: "She started talking about adding them to her collection and bent down to talk to them in a babyish voice.
"The actors were not impressed at all. One of them just flipped out and started shouting at Paris. He told her in no uncertain terms that he was a grown man and she was being very patronizing."
The 26-year-old socialite still appeared oblivious to the offense she caused and is now considering hiring some actors to play Smurfs at her next birthday bash.