Do the impossible
See the invisible
RAW! RAW!
FIGHT THE POWER!
Touch the untoucheable
Break the unbreakable
RAW! RAW!
FIGHT THE POWER!
(Libera Me from Hell --> [link] )

For those who don't know about it, Tengen Toppa Gurren Lagann is the most EPIC anime I've ever seen. Basically, it's about characters full of testorenone defying logic and immeasurable power.

Gattai can be translated by "assemble", and is always shouted by heroes in old mecha animes. In Tengen Toppa Gurren Lagann it is often used, as the main mecha is a combination of the body (Gurren) and the head (Lagann).

Anyway...

Here, you can see the two main girls of that anime (though it's much more about the men, hahaha): Yoko Littner, a very sexy sniper, and Nia Teppelin, a cute princess.
I imagined them to "assemble" (Gattai) like the Gurren Lagann mecha. So Nia ends up as the head, while Yoko control the body. Together, they from Niako, the ultimate form of sexyness!