That's because Jorel and Kael's parents intentionally named them for Superman characters: Kal-El and his father, Jor-El. (Kael was originally named Kalel, but that was one too many Ls for a toddler).
While the comic books inspired their names, that's about as far as the Superman story went in their family. "I never wore tights," says Kael. Jorel adds that they never collected the comic books or action figures, but they did have a German Shepard named Korel.
Jorel and Kael aren't twins, although the family resemblance is strong; Jorel says they were born exactly fourteen months, fourteen days and fourteen hours apart -- at least according to the story their parents like to tell. Growing up, they did get lots of questions about their names, at least until Superman Returns hit theaters in 2006, putting the Superman mythos back on the pop-culture radar. Kael says the new Man of Steel looks like it might be the best of the movies so far; Jorel also picks Russell Crowe as the better version of Superman's dad (over the puffy-haired Marlon Brando).
In terms of hidden powers, Kael is just back in the restaurant business after a three-year stint in heating and air conditioning. And Jorel's kitchen kryptonite? "Green peppers and dirty towels," he says without hesitation.