Co-Writing, anybody?

Ive been tossing this idea around and I want to write a story, but I would like to co write. Anybody up for? We can decide what we want it to be later, but for now I just want to know if anybody would want to do it. We could do romance, comedy, fiction, fanfiction. Whatever comes to mind. For some reason Ive been reading a lot of Prince Harry stuff, so we could do that, or not. It can also be more than just two authors, maybe three. Have any ideas. Let me know. Thank you guys. Emily <3