Siri picks our slime ingredients! Who do you think will end up with a better slime? Karina or Ronald?br br #siripicksourslime #slimechallengebr 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: