Lee Jong Suk was beside himself with embarrassment after Han Hyo Joo boldly landed a kiss on his lips for 'W's second episode.

On July 25, the drama's production crew released bts cuts from the couple's first kiss scene in the second episode, and you can see just how bashful Lee Jong Suk looks! Right after Han Hyo Joo lands the kiss on his lips and pulls away, Lee Jong Suk smiles shyly and lightly touches his hand to his mouth as if he can't believe what just happened. 

SEE ALSO: IU's Boyfriend, Lee Jong Suk shared travel photos

Han Hyo Joo also looks embarrassed, hiding half her face behind her hands, not knowing what to do with herself. How cute are these two?

Despite all the shyness and embarrassment, the actors succeeded in perfecting the kiss scene, as we all saw in the second episode! The production team praised Han Hyo Joo and Lee Jong Suk's efforts, stating, "Though it was the beginning of the filming, they displayed a unique chemistry that resulted in a perfect scene." 

You can catch more of this cute couple and their chemistry on 'W' which airs every Wednesday and Thursday on MBC.