Characters focus on scent in a sexual way, like someone burying their face in a partner’s crotch, ass, armpit, or sweaty feet and visibly inhaling. Artists often draw stink lines, wafting musk clouds, or exaggerated reaction faces to sell how strong the odor is, whether it’s filthy funk or irresistible pheromones. It commonly pairs with licking, deep sniffing, and dirty talk about how good someone’s sweat, pussy, or dick smells.