Most Helpful Guy
For me sex is kind of a test that makes or breaks the relationship. If the compatibility is there, it strengthens the relationship. I'll fantasize more about the girl later. If it's not there, I'll begin to start gradually losing interest.
Compatibility in my case is more based on a kind of mental bond, like what makes two dance partners great for each other. It's not necessarily skill but a kind of connection in that moment that allows you to anticipate each other's bodies and rhythms.
In my case, sex on the first date makes sense to determine that compatibility, since a lot of time could be wasted and things could become a lot more upsetting if we dated for months first and then had sex and realized that compatibility wasn't there when everything else was so great.
That's just me though. I'm one of those types who unfortunately begins to develop the strongest attachment to a girl through the process of sleeping with her, and only when the compatibility is there.0THIS IS NOT RELEVANT ANYMORE