I had this amazing idea....

After reading Misaka_Omnitrix's
A Certain Scientific Railgun
/ Ben 10 crossover series, I thought to myself:
"what other
Sci-Fi fandoms would go AMAZINGLY with Ben 10...?"

And I came to the most logical conclusion EVER,

Mahou Shoujo Lyrical Nanoha

(Or for those who prefer dub)

Magical Girl Lyrical Nanoha

So!
Here's my challenge to all you badass crossover lovers out there!

Write a MGLN/Ben 10 crossover,
It can pair any of the multiple series/seasons together,
For instance, with MGLN, you have

"Magical Girl Lyrical Nanoha,"
"Magical Girl Lyrical Nanoha A's"
"Magical Girl Lyrical Nanoha StrikerS"
"Magical Girl Lyrical Nanoha ViVid"
"Magical Girl Lyrical Nanoha Innocent"
And last but (not sure if it's least, I never made it past StrikerS, lol)
"Magical Girl Lyrical Nanoha Force"

With Ben 10 you've got

Ben 10 TOS,
Ben 10 Alien Force,
Ben 10 Ultimate Alien,

Don't even THINK, of trying to use Omniverse...just pretend it doesn't exist, or you'll have to answer to Vita, and Graf Eisen

And trust me, DON'T touch her hat, whatever you do, don't mess with the hat...