Smoke Screen (слэш)

AU where Viktor is still a champion figure skater and Yuuri has no clue who he is. Upon meeting Viktor for the first time, Yuuri realises that Viktor seems to be a famous celebrity of some sort, and not wanting to bruise Viktor's fragile ego by admitting he has no clue who Viktor is, he assumes Viktor is an actor.
And Viktor just goes along with it.
Things only get worse when they accidentally take the other's phone.
OR
Yuuri ends up convinced that Viktor is a famous porn star and hilarity ensues.