Karina and Ronald make slime with Gloves, choosing ingredients from mystery Gloves not knowing what is inside them!!! Vote below who won the challenge and made a better slime!br br SIS vs BRO instagram @ sisvsbrokarinaronaldbr Karina has a new instagram @ kurzawakarinabr Ronald's new instagram @ ronaldkurzawabr br OUR MERCH: br br Welcome to SIS vs BRO! This is where Karina and Ronald join forces to challenge each other in countless fun videos! Challenges, gaming, and more!!! Be sure to SUBSCRIBE and we will see you in the next video!!!br br Facebook: