Sorry @agracier, I just have to strongly disagree on this one. 'Delayed' or extended foreplay with undressing, spanking, etc, is NOT the same as (implicitly or explicitly) telling your partner "Hey - your natural body stinks and is disgusting, go wash it."
And "benefit of hygiene and enhanced scents"
Daily showering has only been around for what, 100-150 or so years?
Who said anything about stinking or smelling bad? And why would it be yourself telling someone else what to do? Perhaps a person might wish to present themselves cleanly washed, as a mark of hygiene/cleanliness of showing the care they take to present themselves agreeably to a partner. It can be a sign of self esteem, not to mention good manners. Who doesn't wish their partner to think the best of themselves? That's why people dress up, have their hair done. All to make a good impression, even if they have known their partner for a few weeks or decades.
Besides, no matter if you shower or bathe daily, after a few hours whatever activity you are engaged in, will leave an olfactory mark or residue on parts of your body. Think of shoes and feet. One hour in shoes and I doubt they will have the same scent as when just out of shower.
Showering is not the only way to wash. Bathing has been around as long as history has been recorded. Romans - far from the first to do so, but boy on what a scale they did things - were known for their grandiose and magnificent bathing facilities, as were many Arab cities and cultures. Or think Japanese bathing - that's been around for centuries and more.
And consider why an appliance like the bidet was invented: to facilitate the washing of genitals. There is a reason why other cultures - think British with their 1000 year annoying the French attitude - have often often associated oral sex with 'French sex'. Because that culture had an earlier tradition of having oral sex as part of normal sex play while others did not. Think in a roundabout way of the analogy with tongue kissing. Many cultures do not practice it, probably because of lack of ways to clean one's mouth in a pleasing manner.
And enhanced scents are something that mankind has appreciated for millennia. Think of frankincense and myrrh for instance - precious and costly stuff.