I think this picture implies that as the octolings grow more tentacles they gain more power and the ability to transform. This is a new recruit who has just gained enough tentacles to obtain a human form.
Of course! I'd expect no less from you, captain!That's why I've been training my breasts.RealityMale Squids are weak against big boobs, you see. When a male Squid sees these, his intelligence level becomes that of a 3-year-old child.*giggle*She's not gonna attack me?CousinPersonification of OctoballBig sis... Why does an Octoling captain have big boobies?Outfit looks sexy, too