Hmmm...maybe.
There are two ways this could go. One: She needs her friends' approval of you or Two: She has asked you to go out with her friends and not one on one because she really doesn't have feelings for you but is a nice girl, cares about your feelings, and doesn't want to flat out tell you no.
However..even if that IS the case (and it very well may not be, I'm just speculating) that doesn't mean that you can't win her and her friends over. This is a great opportunity for you and you deserve props for having the confidence to just come right out and ask her for time to get to know her better. That confidence will serve you well in this situation and many, many others. Best of luck.
There are very few personal problems that cannot be solved with a suitable application of high explosives.