Kumbuka, a male silverback gorilla sits next to the keeper's chalk board in his enclosure at London Zoo, Thursday, January 2, 2014. Home to more than 850 different species, zoo keepers welcomed in the New Year armed with clipboards as they made a note of every single animal. The compulsory annual count is required as part of ZSL London Zoo's zoo license, and every creature, from the tiny leaf cutter ants to the huge silverback gorilla is duly noted and accounted for. (Photo by Kirsty Wigglesworth/AP Photo)

Mature woman lying on bed, rear view. (Photo by Andersen Ross/Getty Images)

Portrait beautiful woman on the beach, Landing aircraft above the beach at Phuket Airport. Mai Khao beach, one of the most popular beaches among tourists in Phuket. (Photo by Southtownboy/Getty Images/iStockphoto)

Germany, Business couple making love under desk. (Photo by Roman Maerzinger/Getty Images)

Women in lingerie touching each other. (Photo by BDLM/Getty Images)

Woman and man playing domination games in bed. (Photo by NDAB Creativity/Rex Features/Shutterstock)

Coulpe in bed, secret lover hiding. (Photo by Peter Cade/Getty Images)

Sad woman standing near car with scratch on parking and talking by the phone. (Photo by Vera Petrunina/Getty Images)