This fanfic is a HunHan with KrisHo couple. It's starts off where Luhan is with Suho who's the boyfriend of Kris. When Suho went to the bathroom, Luhan just got done talking to Kris on the phone and saw Kai, Tao and Sehun around Suho. He tried to take Suho away but Sehun wasn't letting them only if Luhan agreed to go on a date with him. Luhan is older than Sehun, and Sehun is a rich kid. After their first date, it was straight to , the next day his Sehun's parents came and the two were married. 

....Yeah....help me? :( I never got to finish this story and I can't find it anymore. ;(