One reason for its allure in stories is that it represents mystery. The thin fabric and delicate design of slip lingerie can hide and reveal at the same time, creating a sense of intrigue. Just like in a detective story where a clue might be hidden under a piece of such lingerie.
A sexy slip story could be about a woman who wore a beautiful and alluring silk slip to a romantic dinner. Her partner was completely charmed by how elegant and sensual she looked in it. It added an air of mystery and allure to the evening.
These stories are likely fictional. When people work out, they usually wear appropriate clothing like athletic shorts or tights that are snug enough to prevent any accidental exposure. Also, the body is designed in a way that during normal movement in a workout, such as running, lifting weights or doing yoga, this simply should not occur. Maybe it's just a strange joke or urban legend.
One common theme is the exploration of different time periods. It allows readers to experience the past or future in a vivid way. For example, in historical time slip stories, we can see how people lived in a different era.
One sexy satin slip story could be about a glamorous Hollywood starlet in the 1950s. She wore a beautiful satin slip as part of her undergarments while filming a movie. The satin slip made her feel confident and added a touch of allure to her character. It was a secret weapon that made her feel both comfortable and seductive on set.