Ah ha! I looked in your album and saw the pics. I agree with the above posters, it is probably not anything to worrry about, unless it becomes red, irritated or appears infected. If hair is growing there, it could possibly be the mother's color coming out.
By the way, your comments on the photos, "I swear I'm not choking her" was hilarious!
And the one where she's fighting the sweater......too cute!!!