She might be trying to escape the chaos in the room for a moment. If there are a lot of people or kids running around, under the table could be a quiet and private little nook where she can take a breather. It's like her own little sanctuary away from the hustle and bustle for a short while.
One possible reason could be a form of unusual or inappropriate play. Maybe the daughter saw an animal do something similar and was mimicking it without understanding the inappropriateness. However, this is a very abnormal situation and proper communication and guidance should be given immediately to correct such behavior.
There was a mom who was playing hide - and - seek with her toddler. The mom quickly ducked under the table in the dining room. The toddler started looking around, calling 'Mommy, mommy!'. When the toddler finally looked under the table, the mom made a funny face and the toddler giggled with delight.
It could mean something that is hidden or not openly talked about. Maybe it implies that the erotic story is a sort of secret or not meant to be shared publicly.
It might be a small, intimate gift. For example, in a formal dinner where showing too much personal interest is not allowed. One person secretly slides a small gift like a charm or a lock of hair under the table to their beloved, which has an erotic undertone as it's a very personal and somewhat taboo gesture in that setting.
There was a little fairy who lived in a forest. One day, she saw a strange glimmer under a big oak tree's table - like roots. She flew down and went under it. There, she found a tiny village of even tinier fairies. They were having a celebration and invited her to join. She had a wonderful time dancing and feasting with them under the table - like roots.
It could be that you were ill. Sometimes when a child is sick, especially with something like diarrhea or a bladder infection, moms will put them in diapers to avoid accidents and keep things clean. For example, if you had a stomach bug and couldn't control your bowel movements, the diaper would be a practical solution.
In some cases, it could be out of necessity like in a crowded situation where there are not enough seats. But it can also turn into a special moment. The mom might start a conversation, share memories or just enjoy the closeness with her child.
Maybe you were being disobedient. If you didn't follow her rules like not doing your chores or being disrespectful, she might use a wedgie as a quick and somewhat silly form of punishment.
There could be a situation where an old man drops his glasses under the table. As he searches for them, he remembers all the family meals and conversations that have happened around that table over the years. It's a story about the memories associated with the table and the little incident under it.