"I was adamant that I was (more flexible than you)," says Brian
"Yeahhh, I just don't feel like that makes sense that you would be more flexible than me," Keri banters back.
The pair head to a hot yoga studio called HOTWORX , where they will do yoga in a sauna-like room together with a virtual instructor.
"I want to see Brian do yoga in a pool of sweat," says Keri.
Before they head into class, Brian weighs himself to find out how much weight he will lose as he sweats it out during the workoutthe room where they'll be doing yoga is at 128 degrees Fahrenheit. After stepping on a scale, he weighs 418 pounds. Keri guesses Brian will lose eight pounds in class, while Brian thinks he'll lose five pounds.
They step into their 'sauna' for the workout, and quickly start the session with planks, downward dog, and wall sits.
"I trained legs yesterday," says Brian. "When is the break? I shouldn't have trained legs yesterday." If the contest was to make the loudest, strangest sounds, he was certainly the winner.
They move into more plank work, chair pose, triangle pose, and more before they're done. After stepping out into the fresh, cool air, Brian says, "I was not mentally prepared for what was about to happen."
Before he does his post-workout weigh in, he says, "I feel like I lost a ton of weight. I was sweating the entire time."
He weighs in at 411.8 pounds, a loss of 6.2 pounds.
"I think I won. But I want to do this again. I'll be more mentally prepared next time," says Brian. Keri didn't agreeso the two asked the fans to decide.