Couples in a comfortable and long-term relationship do weird things when no one’s watching. They check for abnormalities in each other’s unreachable body parts. To know if they need shower they sniff each other’s armpits. They show love by cleaning each other’s morning gunk.
They share the same towel. Since the dirt is their own, they clean hairballs from the shower drain. They have fun popping each other’s pimples. Even before brushing they kiss with the morning breath. They love being gross in love.