I second this so much.

My dude (Longhairlover56), you've said yourself that you've only known your gf for a week, and for the sake of your relationship, I recommend getting off this forum and learning more about her and how to pleasure her instead of trying to find out how to "convince" her to give you a hairjob.

Not all women are into hairjobs, and a hairjob is not the only way you can get pleasure from a girl's hair. My own gf is indifferent to them, but when she rapidly shakes her waist-length hair over my dick I cum just as hard.

Your gf has hair to her ankles, and I can only imagine the possibilities there.

Also, depending on how much sex you've had already, you can always ask her before you both make love. Just a simple "Hey do you want to try this tonight?" and take it from there. If not, find out what else she's comfortable doing with her hair and do that.

Just keep an open mind, take things slow, and don't force her to do anything she's not comfortable with.