Since the original purpose for sex was not recreation but procreation, and since Jesus has set us free from the power of sin, I would infer that Christian married couples have the power to avoid non-procreative sex.
Gen 2:18-25
18 And the LORD God said, It is not good that the man should be alone; I will make him an help meet for him.
19 And out of the ground the LORD God formed every beast of the field, and every fowl of the air; and brought them unto Adam to see what he would call them: and whatsoever Adam called every living creature, that was the name thereof.
20 And Adam gave names to all cattle, and to the fowl of the air, and to every beast of the field; but for Adam there was not found an help meet for him.
21 And the LORD God caused a deep sleep to fall upon Adam, and he slept: and he took one of his ribs, and closed up the flesh instead thereof;
22 And the rib, which the LORD God had taken from man, made he a woman, and brought her unto the man.
23 And Adam said, This is now bone of my bones, and flesh of my flesh: she shall be called Woman, because she was taken out of Man.
24 Therefore shall a man leave his father and his mother,
and shall cleave unto his wife: and they shall be one flesh.
25 And they were both naked, the man and his wife, and were not ashamed.
Verse 24 the word '
cleave' doesn't speak of procreate but it does speak of consummate or recreate, because the two become one flesh. I can't find anything any more original than that, can you? According to verse (22) God took the rib of man and 'made' a woman. The word 'made' means that He built the woman to fit the man and the woman was presented and given to the man to be his help meet / verse 18.
Adam, when he saw the woman that God had made for the first time, got excited and with an exclamation said,
'this is the one, bone of my bone and flesh of my flesh'. Another has explained Adam's exclamation as one of great excitement with the expression, WOW, because of the way she was built and Adam immediately cleaved to her with great pleasure and intimacy. She never knew what hit her but she was made just for him. She must of said WOW also and delighted in the exchange because she was meant to fulfill Adam in every way.
Take that any way you want, but I think some sparks were flying and God took great pleasure in what He saw that He had made / Gen 1:31, 2:18. Because He made them male and female and did such a good job creating and building them together and seeing that they were good for each other, He told them to be fruitful and multiple and replenish the earth. In other words, don't stop cleaving because that it what is going to make it all happen. They were not ashamed!