No, it's not a common type of story. Most traditional stories focus on more common themes like love, heroism, or moral lessons, not eels filling someone's stomach.
Well, it might be a story of anticipation and hope. Your mom might have had dreams and expectations for you even before you were born. Also, think about the biological processes that were occurring to shape you into a baby.
In fanfiction, it could be a creative exploration of the bond between Naruto and Kushina even before birth. Maybe it represents their strong wills. For example, their kicks could be seen as a sign of their future determination to face challenges in the Naruto world.
It could start with the girl feeling a strange sensation as the eels enter her body, and then she might struggle to adapt to this new and disturbing state.
In this exotic story, the 'girl gets eels in her body' might be a metaphor. Eels are slippery and hard to control. It could imply that the girl has something within her that she can't easily manage or get rid of, such as a difficult emotion or a strange power that has entered her being.
It could be a very strange and disturbing fictional or symbolic story. Maybe it represents some kind of danger or threat approaching the girl in a very unusual and extreme way. However, without more context, it's hard to be certain.
Well, in the context of Great Big Story, jellied eels are likely to be showcased in terms of their cultural significance. They are a traditional food item that has been around for a long time. The process of making jellied eels involves carefully preparing the eels, cooking them, and then using the natural gelatin from the eels to create the jelly. This dish may be presented in Great Big Story as a symbol of a bygone era in English food culture, perhaps with stories of the people who used to eat it regularly and the places where it was commonly sold.