The breeding season of the Fat-tail or Leopard gecko is between Oct. and June, but different breeding colonies may have unique schedules. Mating normally occurs in Dec. and the first clutch of eggs can be expected from fifteen to forty-five days later. For females who are just beginning to cycle, the laying time is usually the full 45 days. After being bred once the female can continue laying good eggs for at least 5 clutches, with delayed implantation of the male's sperm. If the female is bred by a different male after laying the first clutch, it will take at least one clutch more before the first male's sperm is purged and the second male's offspring start to be produced. Clutches of five are normal, but 13 is not impossible, with two eggs in each clutch. These occur twelve to twenty-two days apart, depending upon the temperature of the habitat. Geckos that produce many eggs one year may lay fewer the following year.