Models pose for a photograph backstage before the Miss Koch beauty pageant, titled “Getting to Zero Teenage Pregnancy”, at the Korogocho slums in Nairobi, December 6, 2014. The winner of the pageant, Miss Koch Kenya, will represent and lead the non-governmental organization to encourage youths in slums to overcome challenges such as poverty, crime, drug and sexual abuse, according to organisers. (Photo by Thomas Mukoya/Reuters)

Models are seen at a makeshift venue backstage before the Miss Koch beauty pageant, titled “Getting to Zero Teenage Pregnancy”, at the Korogocho slums in Nairobi, December 6, 2014. (Photo by Thomas Mukoya/Reuters)

A model prepares at a makeshift venue backstage before the Miss Koch beauty pageant, titled “Getting to Zero Teenage Pregnancy”, at the Korogocho slums in Nairobi, December 6, 2014. (Photo by Thomas Mukoya/Reuters)

A model catwalks during the Miss Koch beauty and talent pageant titled “Getting to Zero Teenage Pregnancy”, at the Korogocho slums in Nairobi, December 6, 2014. (Photo by Thomas Mukoya/Reuters)

A model catwalks during the Miss Koch beauty and talent pageant titled “Getting to Zero Teenage Pregnancy”, at the Korogocho slums in Nairobi, December 6, 2014. (Photo by Thomas Mukoya/Reuters)

Models are seen during the Miss Koch beauty pageant, titled “Getting to Zero Teenage Pregnancy”, at the Korogocho slums in Nairobi, December 6, 2014. (Photo by Thomas Mukoya/Reuters)