It’s a hard and fast rule (no joke intended), that the first date should be one simply of getting acquainted. Of course, in this day of blatant sex on computers and movie screens, sex does happen on some first date.
Unless the first-daters are mature adults who have some sense of restraint, youthful hormones can flare up into burning desire. Or at least it can happen because either the guy or gal has been so influenced by current lack of societal restrictions, that it almost seems like an expected duty.
The simple answer is that sex on the first date is a step too far. The inherent dangers are many. First, hitting the sack with a stranger exposes you to unexpected consequences. There are socially-transmitted diseases, pregnancy, and in some cases, unknowingly committing the crime of being accused of forcing your partner into underage sex.
Another, less dangerous result of sex on the first date could be that it can spoil what may have evolved into a true love relationship. What guy, on having his way immediately with a willing gal, is going to get up and say to himself, “Gee, I really like her. I think I’ll introduce her to my parents, and someday we’ll marry, have kids together and live happily ever after!”
He’s more likely to say, “The quickie was great, but I’m not looking for that kind of gal. If she’s so easy with me, how can I want a relationship when she’ll do it with just about any other guy. Good thing I didn’t give her my phone number.”
On the other hand, it may be best if the first date leads to a chaste good-night kiss, the second to some hand-holding and the third to ….. well, you know the rest. Sex is great, but unless you’re about to be deployed to the war zone or spend the next six months at sea, it’s much more satisfying if it’s combined with genuine love and respect.