OHHHH.....this one is tough to answer. I guess for Cayde it would be his big heart. The guy has a very funnyman persona and has a tendency to distance himself from close relationships, but he still cares so much... As for Dust, it's a lot harder to say tbh. He has a few overlapping traits with Cayde that Kay finds charming, but obviously he's more than that. Oh......honestly Dust is selfish at his core, which can lead to him being very protective of Kay. I can imagine it's extremely sexy to see your husband's uppity mask fall off to a serious, cutting tone to threaten someone who threatens him. Huehue