Gercke was born in Marburg and grew up in Cloppenburg where she attended the Liebfrauenschule Cloppenburg (ULF), a Roman Catholic gymnasium, completing her abitur in 2007. She has a sister and two half-sisters, who are her father’s daughters. Gercke dated US5-boyband member Jay Khan until December 2009. Since 2011 her boyfriend is Real Madrid footballer Sami Khedira. She lives in Berlin and New York. Her boyfriend posed with her in a tuxedo while she was stark-naked, with his hands covering her breasts (New York Times, March 9, 2012).
