Leroy is known for his amusing "Challenge" commentary -- guy never misses a beat when he's going for the big check or having down time with his fellow cast members. So it's perfectly understandable that the vet's initial conversation with his cousin Candice about competing together on "Battle of the Bloodlines" began on a funny note.

"I was like, 'For real?'" the blue-haired newbie reveals in the "Meet the Family" video above. "'No, this is like a joke. For real, for real?'" Nope, her relative was not impersonating Ashton Kutcher during his "Punk'd" era.

Jokes aside, the "Instagram Queen" is ready to give this mission all she has -- even if she has some trepidation about being far off of the ground.

"The heights -- it don't look fun!" Candice says. Going to need to get over that anxiety fast because being suspended in the air is most definitely in your near future...

Meanwhile, Jenna's bond with her cousin Brianna is the complete opposite from her rapport with her "Battle of the Exes 2" partner Jay. Spoiler: The gals couldn't be any closer.

"Our relationship is pretty crazy," the former "Real World: Ex-Plosion" roommate admits in the clip above. "We hang out with each other every single day -- if not we're on the phone 24/7."

So do these tight cousins have any fears before tackling the cutthroat game together? Watch the videos to find out, weigh in on these pairings' chances in the comments and be sure to catch the premiere of "The Challenge: Battle of the Bloodlines" on Wednesday, December 2 at 10/9c!