One of the very few porn actresses from Serbia, Nina Kayy has been in the adult business since 2009. The sex-crazed minx, occasionally named Riley Knight, can be seen in around 50 porn films, most of them belonging to the heterosexual genre and featuring sexual acts such as butt penetration, ass-to-mouth and interracial intercourse. Nina, known for her jawline, was nominated for the Fan Award: Most Epic Ass by AVN in 2017, and in 2018 the focus was back on her butt as this tiger was nominated for Best Butt by Nighmoves.