Depends how Loaded you are, and how Loaded she is.
Dawn Porter writer and comedian First date sex isn't wrong, just make sure you limit your alcohol consumption so your performance is as good as it should be. If it isn't, then it won't be "first-date sex"; it will be a dismal one-night stand which will haunt you forever. Believe me, pulling away half way through to tend to a blackout isn't a good look. So by all means sleep with someone, just make sure you do it well.