This title seems inappropriate and rather concerning. It could potentially refer to a situation in a fictional or misconstrued story that involves a boundary - crossing behavior which is not acceptable in normal family or social ethics. But without more context, it's hard to be sure exactly what it implies.
No, it is not acceptable in most normal situations. This kind of behavior violates personal boundaries and privacy. A child also has the right to his own physical privacy and modesty. There may be very rare exceptions such as in case of an emergency medical situation where quick access to the body part covered by the shorts is necessary, but even then, it should be done with as much respect for the child's privacy as possible.
One way could be if it was a miscommunication. Maybe the mom was just trying to help the son change into appropriate clothing for an activity, like swimming, and it was misconstrued as something improper. So, it could be a story about clarifying misunderstandings within a family.
It could be that there is something stuck in the shorts that is causing discomfort to the son, like a small pebble or a thorn. The mom, out of concern for her son's well - being, pulls off the shorts to remove the object quickly. But again, communication and respect for the child's feelings should be there throughout the process.
This is completely unacceptable. In any society, there are boundaries to protect the well - being and appropriate relationships within a family. A title like this crosses those boundaries and can be considered a form of abuse or at least a very wrong message.
Perhaps there was something wrong with the shorts, like a broken zipper or a tear. Mom noticed it and had the son take them off so she could either repair them or just get rid of them and find a new pair for her son.
Such stories are considered taboo because they involve inappropriate and unethical behavior that violates basic principles of privacy, respect, and the safety of a child. It goes against the normal and healthy relationship between a mother and daughter.
Perhaps they were on a nature walk and the son strayed off the path into some thorny undergrowth. The mom, with her maternal instincts, quickly came to his aid. She would likely be very gentle while pulling out the thorns to avoid causing more harm. It's also possible that the son was wearing loose - fitting clothes that allowed the thorns to get closer to his crotch area more easily.
Sharing such taboo stories is inappropriate as they often involve abnormal and unethical relationships. Indian culture, like many others, values healthy family boundaries and positive relationships within the family structure.