At the ranch, Dr. Mephesto shows them his genetically engineered collection, including several different animals with four pairs of buttocks, such as a monkey, ostrich and mongoose. Mephesto then explains that, just like the Loverboy song says, "pig and elephant DNA just won't splice", and steals a blood sample from Stan and the boys leave. At school the boys learn Terrance has cloned a human foot. The boys go to Chef with their genetic engineering problem, and after he too cites the Loverboy song, he gives them the idea to try to have the animals "make sweet love" to breed.