I love KittyCats. I have never been into a breedable in SL for more than a few weeks but I've been into KittyCats for almost a year now and still love them. Since they have been around about a year now they are having a birthday celebration!! For a limited time only you can grab these 2 kitties totally free.
The orange kitty I got by simply clicking the birthday poster in the store near the giant, blue cat. For the blue cat you have to do a bit more work. You must click the poster behind the giant cat to get an LM. Go to that LM and find a small, blue kitty. This cat will give you an LM to the next and so on. Once you have found all 13 cats you can go back to the main store and click giant kitty for your own blue cat!
*Please note that these are BREEDABLE pets and require feeding to "live." The food is NOT free but these cats come with a week or so worth of food to start with as part of the gift. If you would like to know more about KittyCats check their website or join the official group and ask questions!