Hemsworth & Pataky Reveal Twin Sons' Baby Names

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Actress Elsa Pataky took to her Instagram Tuesday to share the first picture of her twin sons with Chris Hemsworth, and to also reveal their names!

"Ya estan en casa!! Tristan y Sasha llegaron a este mundo el 18 de Marzo justo despues de luna llena. Felicidad completa!!" she wrote, the English translation being, "You are home! Tristan and Sasha came to this world on March 18 just after the full moon. Complete happiness."

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The couple's rep confirmed on March 21 that Pataky, 37, and Hemsworth, 30, welcomed twin boys in Los Angeles.

Related: Chris Hemsworth, Elsa Pataky Welcome Twins

They are already parents to daughter India Rose, age one.