We are talking here about the intensive, gentle and intimate togetherness of lovers where the tongue often plays an important role. Just as you cleanse and care for your body prior to and following lovemaking, you should also keep the mouth cavity and your tongue clean.
A clean body, fresh breath and a clean tongue increase the pleasure of lovemaking.
But then what happens?
Afterwards, you should take your tongue cleaner since protein compounds that settle on the tongue are particularly conducive to bad breath. Who wants to deal with that after a tingly session with your partner?