You know what I've always wondered?

[pocaracas]

Why are humans so special?
They're just animals... the same as the others... and if you're magically retaining all the cognitive function of your original self, there's no need to alter your brain mechanisms. So it's just the same!
Also the polyjuice potion went wrong one time in the books.... how many times did an animagus screw up their transformation?

The animagus transformation isn't an easy spell, it's complex, difficult, and at some point involves holding a mandrake leaf in your mouth for a month.

It's comparatively much easier to brew a complex potion than to learn to become an animagus, hence why so few wizards and witches choose to learn to do it and why it was extra impressive that James, Sirius and Peter learned to do it while still in school.

That's just because... people in books are like.... kids... and they don't want to study.

I don't know that either, but one must assume anything goes. We're talking magic, after all! Not just some physics pre-determined machine.

Yes, we're talking magic, but I'm talking about the real magic in Harry Potter that has rules and theory behind it, not just the willy nilly shit made up in bad fanfiction.

Oh... the real magic that requires words in some weird Latin-like language?
I wonder what the Romans would think of that...
[translated from Roman speak]Legionare, fetch me that spear!
Magically a spear would float through the air!

Aye... I've heard the same... from someone who claimed to have some 2kg on each. And she also considered having a reduction.... and yes, whatevs, the nipple repositioning is a thing. Which means no ability to breastfeed, ever, because all the connections are severed.... as well as all the nerves.
It must suck to loose all sensation on there.  

Yes, whatevs, the nipple thing is for real.  They're removed and then reattached or kept attached and, like, sewn around to reshape the breast... if you really want to know, google it, but be prepared for some gnarly stuff.

As for sensation loss, I'm in for that whether I get reconstruction or not.  Reconstructed breasts (post mastectomy) are numb, as can be a flat chest if you don't get reconstruction. /fun fact

Your concept of "fun" is being a bit too broad