In case you weren't already impressed by Simone Biles' cheerleading debut for the Houston Texans, get this -- it took the gymnast just DAYS to master the squad's whole routine!!
"She learned everything for that game in literally 2 to 3 days," Texans cheerleader Mallory told TMZ Sports.
Simone was such a badass on game day, Mallory says the Olympic legend now has her own locker ... and can come through anytime she feels like bustin' out her boots and pom-poms.
"Once you're a part of the team, you're a part of the sisterhood."
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