The episode
"Original Song" had the first Klaine kiss and it is when they actually get together so that's a really good one.
"Sexy" they also have scenes
He first meets Blaine in "Never Been Kissed"
And judging by the picture you probably already seen "Prom"
They also did a very cute duet in "A very Glee Christmas" I think it was called that.
I hope this helped ;)
posted over a year ago
Thanks!! I've seen since "original song". which one was the teenage dream performance?