Group Super Junior's Kyuhyun asked a blunt, inappropriate question to Seo In Guk.

In MBC "Radio Star" aired today, Seo In Guk, Lee Sung Jae, and Ryu Soo Young came out as guests.

Seo In Guk chose Solid's song 'Grabbing the End of the Night' as a song that helped him mature, and said "I matured in a different sense from other guys."

Seo In Guk said, "When I first heard this song in middle school, something about it was provocative. That was the prospering age."

Then, Kyuhyun, whose eyes turned naughty, asked "So did you get to grab the end of the night?," and Seo In Guk replied, "No, I couldn't. It was the age I shouldn't have grabbed."

Photo Credit: MBC