Well, would it help if you went back to thinkin' I'm your sister?
5 seconds sound clip from the Joe Dirt (2001) movie soundboard.
You can hear this line at 00:47:46 in the Blu-ray version of the movie.
Quote context
[...]
- No!
- My family's last name is Buckwalter. My brother's name is Cletis.
- So, you see, we're not related. We can have sex again.
- Joe, what's the matter? Don't I turn you on?
- I don't know what the problem is.
- Well, would it help if you went back to thinkin' I'm your sister?
- Like I'm some sort of white-trash perv?
- I'm your sister! I'm your sister!
- Oh, no!
- I'm kiddin', I'm kiddin'. I just made that last part up for laughs, you guys, I'm tellin' you.
[...]