What is tickling suppose to lead to?

Me and this ome guy were cuddling alone one time..we had a think and yeah. He just started tilling me while we were cuddling and he did it twice.. I read somewhere that gus tickle a girl to lead to kissing but we didn't kis until he left (not the first time) but yea why was he tickling me?
What is tickling suppose to lead to?
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