User blog comment:LoganParvatiTD225/Meet Chet and Lorenzo from The Ridonculous Race/@comment-4742462-20150701010029

So yeah, I instantly disliked these two as soon as I watched the first episode as they are nothing more than a rehash of Amy & Samey. And now this shows that they official suck if they're both awful at everything aside from wanting to tear each other apart limb from limb.

In terms of them following the usual step siblings storyline, I think this is an example of the writers being given too much credit as I see them either being fodder or lasting awhile despite going through no actual change.