What episode does barney first and detik ciuman robin?

Well, if memory serves correctly, the first time was the end of "Sandcastles in the Sand" and the detik was not until "The Leap." The first was lebih spontaneous, and afterwards, Barney spent the entire fourth season in cinta 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.