Why does it only tickle...?

Question

when somebody else tickles you?

my little cousin just asked me why and i was like i dont know.

Answer 1

It is stimulation of nerve endings that is not controlled by you.  

  

The tickle sensation is an interpretation in the brain, not a physiological response.

There are areas you can stimulate yourself and get some of the sensation.  A person tickling you can cause pain at the same spot if they greatly increase stimulation level.