[Goodwill]

I might be kinda biased since I'm a dude, but I couldn't see any chick really regretting getting e cups unless maybe they ended up being misshapen/saggy/gross looking when their small boobs were perky and well shaped. and of course having huge boobs does come with some negatives like back pain or excessive attention, but I would assume the positives of mind control powers over men usually outweigh the negatives
but yeah like ella said, I think its really rare for someone with a cups to get that big anyway so its probably a moot point.