According to an exclusive report by media outlet 'Sports Chosun' on April 21, MONSTA X's Kihyun and Cosmic Girls's Bona have been in a relationship for the past 5 years.

As fans know, Kihyun and Bona are Starship Entertainment sunbae-hoobaes. According to 'Sports Chosun', the two idols have been close friends since their trainee days, and began seeing each other approximately 5 years ago. 

The two idols are allegedly very careful on their dates, choosing quiet and private locations such as Shinsa-dong or taking drives in Kihyun's car. 'Sports Chosun' also reported that Kihyun and Bona recently vacationed together on Jeju island with some of their close friends. 

Stay tuned for updates. 

[UPDATE] Read Starship Entertainment's official statement in response to the dating reports, here.