"An Elephant Makes Love to a Pig" is the fifth episode in the first season of the American animated television series South Park. It originally aired on Comedy Central in the United States on September 10, 1997. In the episode, the boys of South Park try to force Kyle's pet elephant to crossbreed with Cartman's pet pig for a class project on genetic engineering. Meanwhile, Stan tries to deal with his sister Shelley, who keeps beating him up.