@bostonbeliever – I’m a mom. Believe me, ages do make a difference.
How do you get the parents to change their minds? You come up with a decent plan, you both approach the parents and you don’t lie about the details. @Tink…we know, believe me, we know. We were young once, too!
Is she allowed to invite you to her house? Can she have a group over and just hang out, let her parents see how you all interact?
Parents have boundaries for a reason, not just to be pains in the ass, but it’s something that some parents feel strongly about. The one thing I will tell you, never try to trick them into a scheme or lie to them – don’t ever do something to lose their trust.
Get to know them, it’s your best bet. Don’t be a brown noser, though….we’re wise to that one, too!