Which Pokemon episode does Ash kiss May?

Answer 1

It was in an Episode called "A Kiss Under the Mistletoe." Which WAS Episode 357, it was only shown in Japan but Japanese parents complained about it because they didn't like their kids watching cartoon characters kiss, so it then got deleted and was an NA episode and Unaired in Japanese version and English version like the Barboach Vs Whiscash episode which was unaired in Japan and the US. Also Kiss under the mistletoe instead got replaced with an episode called "Take This House and Shuppet"

Answer 2

It was in Episode 357 "A Kiss Under the Mistletoe." It was only shown in Japan as a Pokemon special but it got banned because people complained about it. Other Pokemon episodes got banned in the US, like in Episode 35 "Legend of the Dratini" where Team Rocket used guns.