Well... I was born a human, so probably around 9 or 10...

Yours have also started, haven't they? It's not like it's a complete washboard you have there.

Sure, but still? I think they should assert themselves a little more.

Indeed...

At the moment, one can see even through the clothes that your little sister's growth has gotten off to a better start.

Futo, apologize right now.

She may be smiling, but safe to say, she's fucking pissed.

O-O-Oh no! Did I happen upon a sore spot?