First of all, Papa Smurf didn't create Smurfette. Gargamel did. She was sent in as Gargamel's evil spy with the intention of destroying the Smurf village.
11 seconds sound clip from the Donnie Darko movie soundboard.
You can hear this line at 00:39:29 in the Blu-ray version of the movie.
Quote context
[...]
- No, no, no, not Vanity. I heard he was a homosexual.
- Okay, well, you know what? Then, she fucks them while Vanity watches. Okay?
- What about Papa Smurf? I mean, he must get in on the action.
- Yeah, what he does, he films the gang-bang. Later on, he beats off to the tape.
- But the overwhelming goodness of the Smurf way of life transformed her.
- Damn it, Donnie. Why do you gotta get so smart on us?
[...]