What could be the possible reasons for a girl having a pale white stomach?

Once upon a time, there was a girl named Lily. She was very fair - skinned and her stomach was a pale white. One day, she was going to the beach with her friends. She wore a cute bikini, and her pale white stomach was exposed to the sun for the first time in a long while. Her friends joked that she looked like a porcelain doll. She laughed it off and they all had a great day playing beach volleyball and swimming.

Food is a common reason. For example, if she ate beans, which are known to cause gas, along with some spoiled food, it could lead to both stomach ache and farting. Maybe she had a meal at a roadside stall where the hygiene wasn't so good.

One reason could be the aesthetic. White socks often give an impression of purity and simplicity, which some girls might find appealing. For example, in some fashion styles, white socks can add a touch of elegance.

Another possibility is that she has some sort of stomach ailment in the context of the fanfic. Maybe she ate something bad earlier and now her stomach is protesting. Or perhaps she has a condition that causes her stomach to make noises at unexpected times, which can add an interesting plot twist to the fanfic as other characters might react to it in different ways.

It could be a side effect of a magic spell or some strange potion she took. In fanfics, all kinds of magical and fictional elements can be introduced, and an improper or misfired spell might disrupt her body's normal functions, including causing diarrhea.

It could be due to a viral or bacterial infection. In a fanfic setting, perhaps she caught a bug from someone else in her fictional world. For instance, if she was in a crowded place like a concert or a busy market and came into contact with someone who was sick, she could get an infection that causes diarrhea.

Maybe she ate something bad like spoiled food or food she was allergic to.

It could be a result of a magical spell gone wrong. Maybe he was experimenting with some powerful magic, and it had an unexpected side effect on his appearance, turning his hair long and white.

One reason could be that she's been really busy and hasn't had time to eat. For example, if she's a student cramming for exams all day long, she might forget to eat and her stomach would growl as a result.

One reason could be that she is carrying something in her pocket like a phone, a small wallet or keys which create a bulge. For example, if she has a large and bulky phone case, it can be quite noticeable.