everyone's commenting on how damn fast Jayce folded
(and well...it helps that they're each other's Penelope. I think--
...ok I was GOING to say that 'I think if it was anyone else, then Jayce wouldn't have caved so quickly.'
But then I remembered just how easily Mel was able to seduce him in season 1, and...
lol, sorry Jayce, let's just say Hera's not gonna petition for your release when you're stuck on Calypso's island XD)
(but if it was post-timejump-trauma Jayce? Yeah, no, no one's successfully seducing this man. Canonically, not even automaton-Viktor was able to do it! (to be fair, he WAS an atuomaton there; maybe if he'd approached Jayce in a form that WASN'T a huge part of Jayce's trauma, he would have had better luck.))
[So, I guess, by vibes alone, Viktor starts as Jayce's Penelope (homophrosyne, in sync, matching wits, equal partners), transforms into Circe/Scylla/Poseidon (Circe: sedutive, dangerous, powerful, pulling him away from his goal. Scylla: transformed into a monster against her will, a tragic figure, willing to do what it takes to survive sounds a lot like evolution. Poseidon: the one thing blocking him from achieving his goal), before Jayce is able to bring back Viktor's humanity (which makes Viktor the Odysseus to Jayce's Penelope).]
sexy, slinky, humanoid, non-mechanical Viktor?
Jayce would fold like a roadmap.
I mean...he's Just A Man.