So far the only things I have nailed down for this are that they met when Ellery entered a funeral parlor that’s part of the casket company owned by Callisto’s family, which he stands to inherit. Ellery’s dad had just died and he was making arrangements as Lars’ only child.
Ellery has conflicted feelings about his dad after losing him. Callisto picked up on that and they bonded over their dads awkwardly. Ellery thought Callisto was so handsome that it was a little scary to talk to him for so long. What could he want with him??
Ellery took his card and accepted a casual date offer. Callisto had to remind himself that funerals make people crave sex, so Ellery was going to be a passing thing. But it didn’t happen like that because their kinks are extremely compatible and their sexual activities took over for them.
They have an affectionate dom/sub dynamic sexually and romantically. There is one exception to this, though, and it is a cause of tension and mistrust between them: Callisto really wants to marry Ellery. Ellery wants to graduate college first and have a career path started before he settles down. Callisto puts a staggering amount of pressure on him to relax and let him take care of him, but Ellery is afraid of not being strong enough for himself. He’s also a realist, worried that when he’s not young and twink anymore Callisto will just find someone new and abandon him to rebuild his life alone. Ellery trusts Callisto with his body- with wrist cuffs, blindfolds, public play, cnc play. He still doesn’t trust Callisto with the future years ahead, for the men they’ll inevitably both become.