i really love this picture. I can only guess the one on Wriggles back physically takes more after Wriggle but personality wise is very much like Yuka, possibly a boy.
Whike the one yuka is holding physically takes more after Yuka but personality wise seems closer to Wriggle. just funny to think about it like that. Plus the idea of who is the "Father". I can't help but imagine even if Yuka gave birth, she was still the "father" from start to finish.