Kim Jong Kook became embarrassed after South Korean actress Soo Ae admitted that she likes muscular men during her appearance on the SBS show "Running Man."

The long -running variety show has seen its share of actresses and girl group members who appeared as guests on the show. Loyal viewers may recall how the "Running Man" cast members would sometimes try to tease some of their single female guests with the muscular musician Kim. The same incident happened during the episode that aired on Sunday, Aug. 7.

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Some of the former Turbo singer's cast members tried to romantically match Kim with one of the show's guests. Soo, along with her "Take Off 2" co-stars Ha Jae Sook and On Yeon Seo, were the three guests that joined the "Running Man" members for a series of fun challenges at the amusement park and other locations.

As the group was heading to their mission site, cast member Ji Suk Jin asked Soo if she prefers men with muscular bodies. After the actress shyly confirmed that she does like muscular men, the show's cast members started to tease the two celebrities, Soompi reported. Kim appeared embarrassed over the Korean actress' admission as he tried to cover his flushed face.

However, the cast members continued with their teasing and even requested Soo to ask Kim the question, "What do you think of me?" The actress mustered up her courage to ask the said question, but the singer was not able to give Soo a response. The musician's reaction led to more teasing as the "Running Man" cast members urged them to start dating.

Meanwhile, Soo's "Take Off 2" co-star On has commented in a previous interview that she found variety shows difficult, allkpop reported. She also applauded the cast members of said the shows and described them as amazing.

The actress also recounted her experience with "Running Man" cast members Song Ji Hyo, Yoo Jae Suk, Lee Kwang Soo and Ji as they completed the various amusement park challenges as a team during the show's episode that aired on July 31. She shared that she had fun filming the said episode, despite the difficult tasks.  On also stated that her team members helped her a lot during the show.

Meanwhile, watch the clip for the upcoming "Running Man" episode for release on Aug. 14: