Pretty sure this is new
http://www.dailymotion.com/video/x1a...-03_shortfilms . Many girls are TFed into catgirls in this episode, though only one tail growth/ ear growth is shown. There is lots of mental TF throughout as the girls start acting more and more catlike, eventually going into heat and trying to hump the brains out of every guy they can find. Honestly, on a show with this much fanservice I'm kinda shocked it took them until the second season to do catgirls. My favorite part is at 9 minutes 44 seconds.