Fast flow... Suggestions...

[peanutter]

DS2 continually tried to feed with this little mouth ... this tiny little o, when I needed an AAAAAAAAAAAAAAAAAAAAAAAAAAAH style "O"!

It was pretty frustrating, but he did learn to flare more - and the more he found that got him more milk, the more he did it Just by pinkie fingering to break the seal, pop more boob in there, then continue. Repeat.

I hope that your DD's latch improves

[myturn]

Is there a way to get more of the underside of the areola in? I think we do okay at the top, but underneath there's still heaps.

I can't see a damn thing easily though my boobs are ginormous and my tiny nipples point down.

Yes. Big boobs. Small nipples. Stupid.

[peanutter]

Other than just tucking it in there (gently, lovingly, milkily) I'm not aware of any ...

[myturn]

That's ok. If I've done all I can it's good. I'll just keep trying.

[onthefly]

I'd get the mouth looked at again.
And go laid-back nursing to use her natural instincts to latch.