The scent that can develop on clothing, including underwear like thongs, can be influenced by a combination of factors. When your wife wears the thong, her body heat and sweat can create a unique scent that some may find appealing. This scent can carry her natural fragrance, which might include pheromones—substances that can influence attraction and arousal.
Additionally, personal hygiene products such as body lotions, soaps, or laundry