Oh, thank God!
4 seconds sound clip from the Joe Dirt (2001) movie soundboard.
You can hear this line at 00:47:10 in the Blu-ray version of the movie.
Quote context
[...]
(WOMAN MOANING, BED SPRING SQUEAKING) Joe...
- We've got questions comin' in from...
- Boss, the phones are goin' nuts. That was a bombshell.
- Wait, wait, man. I found out later that she wasn't my sister.
- Thank God, dude! That was gonna be a little much.
- So I did a real bad thing there, 'cause I think you're my sister.
- No!
- My family's last name is Buckwalter. My brother's name is Cletis.
[...]