Looks like f(x)'s Amber is not quite over the crush she developed on 'Real Men'! 

On the March 19 episode of JTBC's 'Everybody,' Amber talked about her experience on 'Real Men.' In the clip above, she starts off by saying, "I think I was the most exhausted while filming for 'Real Men'--to the extent it created a new standard of being exhausted for me." 

At this, Kim Jong Kook teases, "You say you were that exhausted yet what is this? You developed a 'some' relationship. It was a hot topic," catching Amber off-guard. 

Amber replies, "Can I not like him?" to which Kim Jong Kook says, "You can like him. Leave him a video message. A light-hearted one." 

Amber complies with Kim Jong Kook's suggestion and speaks shyly to the camera, "Instructor, are you doing well?" before bursting into laughter. She struggles to continue, "I'll see you later. I'll contact you." 

Clearly entertained, Kim Jong Kook comments, "Seeing Amber like this is really great. She looks really pretty." 

Agreed. Amber does look really cute when she fangirls over the instructor. You can even see her go into fangirl mode after seeing her instructor's face for the first time here.