Anyone who has ever had a sibling can relate to the love hate�relationship that develops while growing up with each other.�MBC's�'High Kick 3' is no exception, as Lee Jong Suk and�f(x)'s Krystal play the roles of brother and sister�that are constantly�bickering and bantering�with each other.

On a recent interview with TV Report, Lee Jong Suk�explained, "Since Krystal and my (character) fight all the time, now I feel the most comfortable when our characters are fighting. We don't even have to think when we act now."

He continued, "Since Kyrstal and I fight so much, the magnitude of our fights have been increasing. So there are times when we actually hit each other. I think that might be why I've heard that Krystal's mom doesn't like me."

Showing his�humorous�side, Lee Jong Suk added, "(Well)�my grandmother doesn't like Ahn Soo Jung (Krystal) either," causing laughter on the set of the interview.

Meanwhile, �even�though�Lee Jong Suk's 'High Kick 3'�character is rough and tough with his sister Krystal, he is sweet and�sensitive�to his crush Kim Ji Won.

We'll just have to wait and see if he'll be able to win over her heart.

Source + Image: TV Report