Note: I’ll be using date to refer to the first sexualized meeting for ease. Obviously tons of people especially who are not doing old don’t date.

If a man wants an LTR/MTR with a woman with whom he has a high chance of maintaining attraction, first date kiss or ideally make out should be a minimum standard.

In general, it’s fair to say that the three main axes upon how quickly a woman sleeps with a man are how much he can turn her on, her sociosexuality, and random chance such as if she is feeling adventurous that night or has logistical issues. As a result, while first date sex tends to be a good signal for making sure a woman is attracted to a man, using that as a basis for if she is attracted to you fails if she happens to be lower sociosexuality or there is just something jamming up logistics. Sometimes a guy just gets lucky and the women slept with him for reasons other than attraction, but overall it tends to be reliable signal of attraction.

A man may decide to use first date sex as his barometer which is rational if he is fine filtering out a lot of perfectly sexual girls in return for wanting women who put out early. Most men would be better served by judging by first kiss and ideally first make out however; it’s a more reliable signal. Logistics are unlikely to affect a kiss, it’s generally a good sign of attraction, and very few western women are low enough sociosexuality they wouldn’t kiss on the first date. Making out is a better signal of attraction but may be affected by more logistical issues. If logistics permit, making out should be used but otherwise an enthusiastic kiss would suffice.

The downsides of the standard are that some women have low enough sociosexuality that they don’t even kiss on the first date and some men just can’t inspire attraction. Women with low sociosexuality are a very high dead-bedroom risk so they are best avoided if a man values sex highly. If a man can’t inspire a first date kiss, then he should either improve or enjoy the company of hookers.

TLDR: Many in PUA inspired groups advocate for first date sex to test attraction. There are too many other factors that go into first date sex so you will filter out a lot of good women, so most men would be better served by a first date kiss or make out standard.