In part 1 it was stated in Genesis 2:25  that Adam and Eve were both naked  and were not ashamed.

Note that the conjunction in the above verse is "and" not "but".

The conjunction used means that they should not be ashamed of their nakedness.

Why were they not ashamed?

Inspirational@bbs gave a fantastic answer that there was no sin at that time.

He did not elaborate so 🦋 will elaborate.

There are 2 paths that can follow from the statement that inspirational@bbs made.

The explanation that is commonly put forward was that Adam and Eve were covered with the Glory of God and so do not see the nakedness.

After they sinned, they lost the glory of God and so became aware of their nakedness. 

An explanation that is acceptable.

In Genesis 1:28 God blessed Adam and Eve and told them to be fruitful and multiply; fill the earth ...

🦋 believe that the progression of the relationship of Adam and Eve beyond what is in the post below to becoming one flesh in Genesis 1 :23 & 24 took place before Genesis Chapter 3

Was this blessing and instruction to them made before or after they had sinned?

Genesis 4:1 says that Adam knew his wife Eve and she conceived  and bore Cain.

This happened after Adam and Eve had sinned.

🦋think that Genesis 4:1 is not the first time Adam knew Eve and Genesis 1:28 came before they sinned.

🦋 also believe that what Adam said in Genesis 1:23 that Eve is NOW bone of my bone and flesh of my flesh.

Genesis goes on to say "Therefore shall a man leave his mother and father  and be joined to his wife and become one flesh.

🦋🦋🦋

Adam and Eve cannot be fruitful and multiply as instructed in Genesis 1:28 without joining together and becoming one flesh.

The Now that Adam said in Genesis 1:23 was said after becoming one flesh with Eve and this happened before the fall of man in Genesis chapter 3.

The becoming one flesh of Adam and Eve is 100% pure and in accordance with God's instructions in Genesis 1:28

After the fall of man in Genesis Chapter 3 , the relationship between Adam and Eve was no longer 100 pure because of the presence of sin. Sin aslo caused the breakdown in relationships between animals and between plants
Some animals became carnivores and plants also fought with one another below the ground for nutrients and water and above the ground for light like the thorns and thistles mentioned in Genesis 3:18

The relationship between Adam and Eve  was no longer 100% pure like in Genesis 1:28 but now had the element of lust instead of a pure ❤️

So the presence of sin made Adam and Eve aware of their nakedness