You open your eyes, barely being able to see anything with how little light filtered from outside your current location, feeling wet and humid, your lower body covered by a thick, white liquid.

At first, you think this is just a strange dream until you remember the events that just happened beforehand: you were now tiny, and inside a girl's breast. That explained why you were inside a fleshy sack, most likely a mammary gland of hers...

You raised your eyes in shock, realizing that, without a doubt, what this liquid was: it was...milk! 

The white color, the thickness, where you were...it was milk, which was surprising: this girl wasn't pregnant nor a mother, so why was her body producing the stuff?

You manage to calm down, and since you have already experienced a rather transformative event, you are content to just chalk it up to you simply being here provoking such an effect on the girl's body. Why? Don't know, and right now not interested in learning the reason behind such a phenomenon, for you were worried by a far more urgent matter: how are you going to sleep now? You don't want to risk potentially drowning in the stuff.

You tried to find a better, more comfortable position away from the slowly rising liquid, but not only did you fail at that, but your squirming had slightly woken up your "owner", as you managed to hear Shina's sleepy voice, saying:
"Yeah...that feels good...come on, my tiny...drink up...is all yours..."

That sentence allowed you to realize that the only surefire way to get rid of the stuff was a rather simple one: to drink it up.

However, as simple as it might be at a glance...you might not be keen on it: you are not confident about what effect the consumption of it could have upon you, not to mention your lack of trust in the giantess; she shoved you inside her teat for god sake and she expects that likely tomorrow morning, you get to please her. Well, perhaps refusing to drink could serve as a signal that you're not willing to play along with her desires. 

On the other hand, it is going to be the first meal you would have since this whole crazy series of events began, and...The idea of feeding on a cute girl’s milk sounds...rather sensual and thus appealing. 

In the end, what did you do? Did you try to consume the girl's milk, or refuse to do so?