Based on your friend's message, it seems that Lisa's cat ("Tatze" in German, which translates to "paw") has given birth to three kittens. Your friend is excited about the kittens and even expresses a desire to have a cat of her own. To congratulate your friend on the new additions, you could say something like: "Herzlichen Glückwunsch zu den süßen Neuankömmlingen! Drei kleine Kätzchen sind wirklich ein Grund zur Freude. Es ist so schön, dass Lisa ihre glückliche Nachricht mit uns allen geteilt hat. Vielleicht ist es bald an der Zeit, dass du deinen eigenen kleinen Fellfreund findest! 😺" This translates to: "Congratulations on the adorable new arrivals! Three little kittens are truly a cause for joy. It's so nice that Lisa shared her happy news with all of us. Maybe it's about time you find your own little furry friend!"