Jongup hasn't been sleeping and something slips.

Yongguk suggested to young brother, Zelo that Jongup (someone he never met before but had heard a lot from Zelo) could come over to their house and use their exercise equipment.  One afternoon, Yongguk came home to find a topless stranger with defined arm muscles and washboard abs at the exercise area in the house.    

This is a little drabble I wrote... thanks to these gifs:    But as much as this implies something more it's just a cute and fluffy lit