Who is this sexy underwater woman?

Her name is Kiky Rucker that gif is from the scene Kiky Pool Party

Go here for proof

http://www.hegre.com/films/kiky-pool-party

And go here if you want more of her

http://www.hegre.com/search?q=Kiky+Rucker

Here some more pics from the scene for more proof

http://cdn.public.hegre.com/films/kiky-pool-party/10/kiky-pool-party-10-320
x.jpg?v=1479154089

http://cdn.public.hegre.com/films/kiky-pool-party/06/kiky-pool-party-06-320
x.jpg?v=1479154047

http://cdn.public.hegre.com/films/kiky-pool-party/05/kiky-pool-party-05-320
x.jpg?v=1479154046

But PmMeGifsForSauce got it right first tho

Her name is Mia Khalifa.