Though they may play siblings on-screen, this hasn't stopped Lee Jong Suk from developing a crush on his 'High Kick 3' co-star, f(x)'s Krystal! The actor made a surprising confession on the latest episode of MBC's 'Section TV Entertainment News', surprising viewers who watched the broadcast. 'High Kick 3' stars Lee Jong Suk, Krystal and Park Ha Sun made an appearance on the December 10th broadcast, sharing interesting details and stories from the film set. When the host Seul Gi asked Jong Suk why he�and Krystal seemed like a couple even though they played brother and sister in the series, Ha Sun answered for him, saying, "That's because he fancies Krystal." She continued, "He'd liked me before 'High Kick 3' began, but started to fancy Krystal once the series kicked off. Now he's got his eyes on Kim Ji Won." Jong Suk quickly retorted, "No, it's Krystal," causing people on set to break out in laughter. Seul Gi then asked if Jong Suk had any certain standards to his switching the targets of his fancy, to which the actor reasoned, "Krystal's waiting room is next to my room." Ha Sun promptly pointed out, "We all have waiting rooms next to one another." Source: TV Report