yes! aw so romantic. kneel down and just ask for permission from her friends ( if you ever get married and her kids ask about this you want it to be romantic right ) think of it as a first dance of a couple ( THEN YOU CAN GO MAKE OUT! after she is all lovey dovey
ALWAYS ask her to the dance. Even if she's promised to be with her girlfriends you can at least offer to "escort" them! That's a sweet way of saying "I don't want you to have to choose between us and I'd really like to be with you." I hope she says yes!
If there is one thing i've learned from my life, is you don't get another chance to live your life....go out there and risk it, you never know what she'll say. You'll be mad later if you don't ask her now. Good Luck
Yes if course just say even though your going with your friends maybe you could come with me dont put pressure on her though just ask her casually first and you might get a yes
hope i helped