The Physics of this intrigue me
That's circumstancial & very leading (the scene on the pier - the guy could be not the father, not Cole, not a DeKock, etc)
I think Cole & Callista being the parents was directly mentioned somewhere, but never specified if Cole is a DeKocK
Basically, it's still kinda up for grabs compared to Olivia.
For the 'seen her pregnant' argument, it falls apart cause of how easily Olivia & MC accept the not-my-brother information. So they are probably very close in age to seth & thus their first memories involve a baby seth, not a pregnant Callista.
MC is mentioned as unique in having Callista's blood. Unless the 'designer child' theory by f96trooper is correct (I've had similar thoughts before - I don't see Veronica humoring Alexander's obsession otherwise. There
must be
something else.), Seth would fulfill the gambit at the same value as MC, no need for a back-up role. The difference in treatment could be due to his condition, but I don't think Seth is blood related to the MC either. Having 2 sons of Callista would not make sense for the setup & I'm not a fan of the idea 'genetic disease makes him a unviable canditate' Looking forward to what the dev can do with this Schrodinger's box. Very intriguing.
Wonder what instructions Olivia got from Callista.
Given the devs leanings & the paths setup, maybe Olivia is the real main MC on the sub path as the
Real story, but It'd be interesting if we can see Callista's plans to keep her promise of always looking out for MC on the dom path, with Olivia's whole participation turning out to be for the MC's sake on Callista's orders.
PS: Went back & checked the Kiyomi-Seth scene in ch7, & Seth is wearing a chastity cage. It's a good way to maintain continuity of both sub & dom paths since the size can't be determined.