(K)POPTART REACTION |GYM-JONGKOOK | JUN-K (2PM)

If you like boxing Kim jong kook has some videos of him doing boxing too

steroids are taboo because of strict laws and conservative fitness culture. There was a controversy where a foreign YouTuber accused Kim Jong-kook of using steroids, which caused massive backlash. Kim Jong-kook publicly took multiple tests to prove he was clean, and the YouTuber later apologized. I think the other guy is also natural cuz he is a IFBB Pro Champion