Need help!!

So my birthday is Friday. I'm going on a date with this guy I've been knowing for a while for my birthday. I know we both like each other but, I'm very confused on what to wear. I've stayed the night at his house many of times but he said it would be a long beautiful night. I asked him how I should dress; he told me cute and sexy. Should I wait till after to change to something sexy and kinky or wear it under whatever I wear? What should I wear???!!!