It appears to be a message in German, but I'll help you break it down. Your friend is excited because her cat, Lisa, has posted something on Instagram (hast du mittbekommen was = have you seen what). Her cat has just had three kittens (Tatze = cat), and she thinks they look adorable (süß aus = so cute out). So, to congratulate your friend, you could respond with something like: "Großes Glück zu Ihrem neugeborenen Katzenpaar! Vor allem die drei kleinen Kuscheltiere sehen so süß aus" Translation: "Huge congratulations on your new cat duo! Especially the three little cuddle balls look so cute" Please note that the phrase "Katzenpaar" means cat pair, but in this context, it's used to refer to the mommy cat and her kittens. If you'd like to refer to the kittens specifically, you could say "die kleinen Kuscheltiere" (the little cuddle balls) or "deine neuen kleinen Kuschelkaten" (your new little cuddle kittens).