I forgot just how much characters in One Piece tend to let themselves go (see Gekko Moria). I presume Big Mom was older than Kaido, then, when he joined the "Rox"? Now I understand how she got pregnant the first dozen times. By the time the looks were gone, she had the power.

Hiyori didn't come off as vengeful so far, so the double fake out was surprising. I was expecting 'this' Komurasaki to be a government agent or the like.