How many times do you have to have sex in order to determine if someone is a good lover?

Is it possible to have sex with a person and immediately know that they are a good lover? How many chances does a person get if they are not very good at first?
_

Alayna:
Right after flirting took place.
(4 December 2017)

Earlie:
What do you think of the name Andrew Jason?
(4 December 2017)

Earlie:
Both are family names and my sister does not want Jason as the middle name.
(4 December 2017)

Giselle:
Here's just a little rap I wrote earlier tell mw what you guys think?
(4 December 2017)

Giselle:
I'm on that app too I'm bout to meet up with a chick Guess what im gon give her?
(4 December 2017)

Ciara:
Why do women go back to men that treated them poorly?
(4 December 2017)

Ciara:
She could've went back to him sooner.
(4 December 2017)

Ciara:
If she still had feelings for him why would she spend 3 years with me?
(4 December 2017)

Ciara:
So she could have had him the whole time her and I were together.
(4 December 2017)

Ciara:
Keep in mind: this ex always wanted her back.
(4 December 2017)