Vio au Viktor finding out he absolutely loves sweet treats after Jayce brings in cupcakes he'd made with his mum to share with everyone in the lab. After years of eating whatever given to him by Singed and for a certain amount of time getting most of his nutrients from ivs who can blame him. He tries to be normal about them, totally chill about not having something nice with every meal. But Jayce noticed how his gills fluttered when he's particularly happy and how his tail flickered and the faint flush to his cheeks and keeps it all in mind. And he notes down every bakery nearby to the lab recipes he wants to make to ensure there's always something nice and sweet for Viktor to eat
And after they run away from everything and settle down somewhere new and feel safe enough to relax the first thing Jayce does it gets ingredients to make the cupcakes he made with his mum that one time. Viktor sits on the counter and watches, gills and tail flicking in anticipation, wondering how he was so lucky to meet someone who'd love him as much a Jayce