Dakota Moss: So my finger got cut off. But nobody did it. Who's going to believe that? Look at you. You don't even believe it.
Jerrod Pointer: Yeah, I do.
[Dakota scoffs.]
Dakota Moss: That's because I fucked you.
[After having sex with Jerrod.]
Dakota Moss: Did she ever fuck you like that?
[Jerrod doesn't answer.]
Dakota Moss: Did she ever fuck you at all?
[again Jerrod doesn't answer.]
Dakota Moss: Do you think she'd start now?
Answer: Blue's the color for Aubrey's character, and the red one's for Dakota. If you watch the movie carefully you can notice that Aubrey wears blue clothes the most of the time while Dakota wears red ones. So it's just to represent the diferent characters and make the movie obvious.