What episode does barney first and секунда Kiss robin?

Well, if memory serves correctly, the first time was the end of "Sandcastles in the Sand" and the секунда was not until "The Leap." The first was еще spontaneous, and afterwards, Barney spent the entire fourth season in Любовь with Robin. Then in the season four finale, they realized they both had feelings for each other and kissed again, then decided to work out their issues later.