It sounds as if you aren't part of the same school she goes too or you could still see her at the dance or even meet her there. You have to ask yourself first why her parents don't want her to even be with you and you know it isn't just the dance they don't want you to take her too. They don't want you dating their daughter! You don't have much say in the matter. If your girlfriend didn't want to go with another guy then she doesn't have too. She can either stay home or go alone. The guy her parents are letting her go with is probably the son of a friend of theres because that's what parents can do in this case. It's obvious her parents and you don't get along. I know going alone to a school dance isn't all that cool, but many girls just go with a girlfriend and think nothing of it. It would be best if you posted again and gave a little more insight into the problem you are having with your girlfriend's parents and why. Tell the truth about yourself and why you think her parents don't care for you and depending on your reasonings there may be a way to win her parents over. That's odd. As long as it's just a friend, I guess there's nothing wrong with that. Why won't they let her go with you? How is she your girlfriend then? Maybe you can talk to the parents and communicate that you really would like to take her. Maybe you need to re-evaluate why they dislike you.
It is okay to let your girlfriend dance with other boys. Its the right thing to do. But it's weird that your girlfriend's parents won't let you dance with her.
Very politely.
Dancing would seem appropriate.
Definitley ask her to the dance as a friend and not as a girlfriend. If you ask as a girlfriend it is a lot of pressure for the first time going out together.
It depends if it's a dance your school is holding, or if it's an actual dance, where you actually have to dance with your boyfriend/girlfriend.
wait for the dance she'll like that
someone you take to a dance in high school
Tell him you are waiting for someone else.
A girl on the dance team where he went to high school. (Not exactly sure who.)
It's ok for a girl to go to a dance with a guy but if the girl likes the guy you may want to go to the dance with her not him!!!
Just ask her "Do you want to go to the dance with me?". That doesn't imply you want to be her boyfriend at all.
"Dance" would probably be a good start
"No, thank you."