How old is this girl? It's highly likely if she is a virgin that sex would be a bit of an issue for her and even if she's telling porkies and she isn't a virgin, she would want to make sure that you weren't coming there expecting to have sex with her. Even in the UK girls like to be coy about sex and most would hate to be thought of as easy, so if I were you I would just go there with no preconceptions, enjoy yourself and let nature take it's course........ You never know, you might find yourself pleasantly surprised.
In my experience the female of the species doesn't always say exactly what she means and doesn't always mean exactly what she says.
Iain.