Actor Kim Jung Tae showed his playful, fatherly side in a new picture he posted onto Twitter on May 29 along with the message, "Jinx!"

His son�Yakkung's adorable smile is contagious as Kim Jung Tae tickles him while the two are lounging on the sofa, showing their close relationship. Who can help but go, "Aww," at this cuteness and love!

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Netizens commented, "Yakkung's smile is so lovable," "Grow well and fast, Yakkung," "Did they dress up for a couple look too?" and more. �

You can check the two of them out on KBS 2TV's 'Superman Is Back'!