So.... I have so many things on my head right now and it's all about a new fanfic

I know i shout edit my old ones but I really need to get these imaginations inside my head out!!!

And I know i should focus on my studies... But i just can't ignore the feelinf of writing something new!!!!

So here are the choices of characters that I had in mind

1. You and Kris as cousins

2. You and Zelo as twins!!! [I don't care what you think about it. i just one answer.  You know who you are. others, please ignore this if you don't think it;s you. :p]

Two only actually....

First, Should i actually write a new one?

And if i should, which one should i write about first?