As stated in the youtube description:
Release date: 2009/12/17 in South Korea
In this cheerful romantic comedy about coming out of the closet, Seok-i (Lee Je-hoon) visits his boyfriend Min-su (Seo Ji-hoo) who is serving in the military. However, they run into Min-su's mother, and explain that they are 'just friends.' One funny episode involves the pair sleeping together, with Min-su's mother sandwiched between.
Just friends? [No subs]
Part 1:
http://www.youtube.com/watch?v=6pxLF0jBTV8Part 2:
http://www.youtube.com/watch?v=uC6ey5cp8tIPart 3:
http://www.youtube.com/watch?v=AzoIzKD1mjkPart 4:
http://www.youtube.com/watch?v=VMTiXTmVb00Part 5:
http://www.youtube.com/watch?v=3w82D_RBMUMPart 6:
http://www.youtube.com/watch?v=KOjA8CUBYgwHaven't watched the whole thing yet. My laptop is being a POS. But from what I've seen, there's singing at the beginning lol.
Enjoy!