Kate and Joana (John) are pregnant. They are swelled to the brink with 4 girls each or so they think.
"Now, children be born. I want more pets." The Anthrodog said. They instantly gave birth to their girls. They girls were conjoined and appeared as 4 headed babies with wider chests and they grew to age 16 in about 20 mins.
"Ah, conjoined pets. Interesting"