Clark y Lois Kent

Admittedly, after a decade and a half in the JLA together, several world-ending events, a couple apocalypses, and a shit ton of obsessively thematic supervillains... Clark probably owed Bruce more than he could count definitively. A yellow sun powered Kryptonian was a force to be reckoned with-- but a guy from New Jersey with no sense of self preservation, a lot of money, and an undefinable rage that he refuses to go to therapy for? Yeah, Clark wasn't ashamed to admit that The Bat had saved his a$$ in more than a few fights.

So, of course, when Bruce called asking if they could take his youngest for a few days while Gotham recovered from a major incident with Scarecrow ('Better air quality', he said, which... Was true on an objective level), of course Clark agreed-- and, seeing that cheeky Boy Scout smile made sure that Lois agreed too.

So, here we are, a few days later, and you're standing at their doorstep, bags in hand, squinting in the sunlight.