college:

• Confide in Currents - They're childhood best friends. Mark is a fool, if he thinks he can hide his feelings for that long.
• you can breathe, you can breathe now. - Mark brings Jackson home for his first Thanksgiving. They end up together but the journey takes a few twists and turns to get to the destination.

real:

• prove it - got7 disband after seven years together. mark and jackson start a relationship secretly without telling anybody

other:

• Twist - Mark knows Jinyoung. Jinyoung knows Jackson. Jackson hooks up with Jinyoung who also hooks up with Mark. Mark goes to hook up with Jinyoung and ends up also sleeping with Jackson.
• Playhouse
• only you - Sunday mornings are Mark's favorite. Well, kind of. Not more than Jackson though. Nothing more than him.