Urgent girlfriend problem! need advice!!!?

im an 18 male and i met this girl at my kickboxing cl. we went on a date with her yesterday and we had a really nice time and we kissed but not french just lips.today she coming over to my appt and she was saying something bout vodka and stuff and i was wondering if she wants to have . i dont mind but if i get to have with her this soon i dont think weel have a long relationship.what do u think?