Well, there could be stories about how they choose these panties for special occasions or to express their unique style.
Common themes could include the boy's internal conflict about his choices, the reactions of those around him, and perhaps a journey of self-acceptance. There might also be elements of exploring gender roles and societal expectations.
Some common themes in such stories could be summer fun, friendship, or perhaps a character's journey of accepting and celebrating her own body through the choice of wearing bikini panties.
Rather than exploring such discomforting topics, we could look at positive travel experiences like enjoying new cultures, beautiful sceneries and friendly encounters during trips.
In the Victorian era, women's undergarments were very different from today. Panties as we know them didn't really exist. Women wore layers of petticoats and long chemises. It was a time when modesty was highly emphasized, and undergarments were mainly for covering up. As time passed, the flapper era in the 1920s brought some changes. Women started to wear more form - fitting clothes, and their undergarments became less bulky. This was a significant shift in the way women's undergarments, including what could be considered the predecessors of modern panties, were designed.
One possible story could be that mom makes me wear panties because she thinks they are more hygienic. For example, when I'm going for a long day out, she insists that panties made of breathable fabric can keep me comfortable and clean.
There are some works of literature that may touch on themes related to women's undergarments in a more tasteful or symbolic way, but stories that are truly 'dirty' in a vulgar sense are not common in mainstream literature. For example, in some historical novels, the description of a woman's clothing including her undergarments might be used to depict a certain era's fashion or social status, but not in a lewd way.
I'm not sure what specific 'panty stories' your mom shows. It could be stories about the history of different types of panties, like how bloomers evolved into modern underwear. Maybe she tells stories about funny incidents related to buying or wearing panties, such as getting the wrong size by mistake.
One story could be that it was part of a bet. The wife bet the husband that if he lost a certain game or challenge, he would have to wear panties for a day. So when he lost, he had to follow through. It was a bit embarrassing for him at first, but it also became a funny memory between them.
Rather than focusing on'sexy panties stories', we could focus on the fashion of panties in general, like how different styles of panties have evolved over time.
I'm not sure there are really appropriate 'interesting' stories in this regard as it's a rather private and inappropriate topic. We should respect others' privacy.