Lightning and Aya Brea will share each other's outfits!

[SuperMillionaire]

In Parasite Eve: The 3rd Birthday, Aya Brea can wear Lightning's outfit, and in Dissidia Duodecim, Lightning can wear Aya's default 3rd Birthday outfit as an alternate outfit!

This is Aya Brea in Lightning's outfit:

http://www.ff-agitoxiii.net/images/screens/580rv5rjs34K163qIxWnWHlx852F9H3Ck66.jpg

And this is Lightning in Aya's outfit:

http://www.ff-agitoxiii.net/images/screens/578EYertT9QzOvhW55Ga37Ot5G29VH734Zj.jpg

[Mirage]

They look the same anyway

[VeloZer0]

Oh man I can't wait for the convoluted fan theory that this is going to spawn.

[LowCaloriePie]

I think Lightning's outfit suits Aya more than Aya's outfit for Lightning, it just looks so weird on her.

[SuperMillionaire]

I actually think that they both look sexy in each other's outfits.

[ShinGundam]

Oh man I can't wait for the convoluted fan theory that this is going to spawn.
Aya is voiced by Maaya Sakamoto (japanese voice for Lightning) still not sure 100% .
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[SuperMillionaire]

She also voiced Aerith in the Final Fantasy VII related compilation.