That's a no-no to me - sex on the first date. No matter if you are intimate in your online chatting or in texting, the first date is a camouflage of sorts. That means you are not showing your true personality so it is foolish to be that intimate. What if your date happens to be hiv positive? Are you willing to suffer the consequences of getting sick? Pardon me but having sex on the first date is the habit of a maniac.