The id (instinct) to protect and nurture children... That's right.

It is the motherly instinct...!!

Anyway, it looks like Lady Koishi has become accustomed to taking care of babies.

That's all being done subconsciously.

Eh- It is!?

The subconscious works almost entirely by an energy known as instinct (Id).

Koishi's done nothing but release that.

Great. We've arrived at a happy-story-like ending. Check this panel

At this moment, Komeiji Satori never realized.

Subconscious