I am a crested gecko breeder (more so than ball pythons at the moment). Crested geckos only need one successful pairing in order to keep producing babies for up to (and maybe even more than) a year. You really have to be careful because they can literally breed themselves to death or have calcium crashes. Females should be watched carefully during the breeding season to make sure their calcium levels are kept up. Give them a cool down period so that they can replenish their weight and calcium. You can check a female's calcium by rubbing on the side of their mouth to get them to open it. Once open, look on roof of their mouth for 2 little white "lumps". If they look nice and full then they are good to go. If they look small then it would be best to give your female some extra calcium supplements. Good luck with your future breedings! They really are awesome little creatures :).