Why do you want to keep it in worship?
Garrett Kell explains that sex is not supposed to be all zowie and pizzazz:
God created sex to be a bond between a husband and wife that strengthens over time. Married couples make love on their honeymoon and after a miscarriage. They make love to conceive children and after they bury them. They make love when bodies are healthy and during battles against cancer. As a husband and wife pursue each other through intimate service, sacrifice, and struggle, God blesses them in a way the world can never know. . . .
That doesn’t mean sex is always enjoyable or easy for married couples. Because marriage is the union of an ever-changing and ever-growing pair of fallen people, we can expect that sexual intimacy to have both sweet and sour days and seasons. That is part of God’s wise design.
He has called a man and a woman to be committed to each other and to make love with each other during every season of life. Lovemaking on a honeymoon may be wonderful or awful. Intimate times are shared when buying a new house or burying a parent. It is pursued when God gives conception, and when he withholds it.
So if sex and passion can be ordinary and even sour, why have New Calvinists insisted that worship much be intense, earnest, deeply heart-felt if it is genuine? If married couples have seasons of less and more vibrant sex, Christians may also experience worship that is true and genuine even if all the religious affections aren’t bubbling.
Or maybe it was a mistake in the first place to introduce the language of passion and hedonism into the realm of piety. The Bible invariably uses agrarian imagery to explain the Christian life. Farms and gardens do not produce the intensity or sound of fireworks. Sure, Spring flowers pop (and they last a lot longer than even the best fireworks display). But even the flowers fade. That’s why we need less passion and more routine in worship.
What married couples do in the boudoir is on them (sheesh).