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For the show's newest tip, Ken and Kyung Li walk through all the steps of a couple's first kiss, highlighting all the do's and don't's so that every couple from here on can succeed with their first time smooch! 

Afterward, the two idols also spilled the beans on when they had their first kisses, with Ken saying, "In my twenties, right before I debuted, I had a girlfriend who was also my first kiss." 

Kyung Li shared, "Ken said he had his first kiss in his 20s, but I had it in my 10s. I was taking a walk around school [with him]. I was unprepared..? There wasn't anything everyone says they experience, like bells in my head, or a nice smell... it felt a little empty."