How would sex on the first date effect the future of the relationship?

So let’s say you’re talking to this possibly perfect person for you, good looking, personality and chemistry, etc.

You both go on a date and obviously it wasn’t planned but you hook up and it went really well, how would that effect the future between you two?
How would sex on the first date effect the future of the relationship?
It would increase my interest with them
It would remain the same
It would decrease my interest with them
Select gender and age to cast your vote:
How would sex on the first date effect the future of the relationship?
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