Look, if you're fucking my sister, you better not be cos you'll get a fucking beating. You know what I'm saying? If we ever hear she's not a virgin anymore, your ass is grass.

11 seconds sound clip from the Jungle Fever movie soundboard.

You can hear this line at 00:18:57 in the Blu-ray version of the movie.

Quote context

[...]

- Yo, Jimmy? Prince Charming's here. Check it out.

- Whoa... Paulie!

- Paulie Carbone, my man. What's up?

- Hey, Jim. How you doing?

- Good.

- Look, Paulie, we were just wanting to know if you were fucking our sister.

- You fucking my sister, Angie?

- What kind of question is that?

- That's a good question.

- It's a stupid question and I ain't answering it.

- Look, if you're fucking my sister, you better not be cos you'll get a fucking beating. You know what I'm saying? If we ever hear she's not a virgin anymore, your ass is grass.

- You're gonna wish your mother never had you.

- You ever get her pregnant... I don't know why I'm thinking this, 'cause I know it's not gonna happen, but if you did I'm gonna give you the abortion, then you're gonna marry her, OK?

- Angela's not some slut you find on the street, you know. She's our sister.

- Don't even think about it. Don't even think about it!

[...]