Gummy vs Marshmallow Slime Challenge was super fun!!! We are making edible slime from real gummies and real marshmallows!!! Amazing!!! Which one do you think is better? Let us know! We both liked Marshmallow slime better! So delicious!!!! Happy July 4th to all the viewers from USA!!! And congratulations to all the winners!!! :) Subscribe for more cool videos! http://bit.ly/2nCf9L4 SIS vs BRO instagram @ sisvsbro_karina_ronald Karina has a new instagram @ kurzawa_karina Ronald's new instagram @ r

Not using my arms to make the coolest slime ever.... is a challenge! You guys let us know who did a better job!!! Subscribe for more cool videos! http://bit.ly/2nCf9L4 SIS vs BRO instagram @ sisvsbro_karina_ronald Karina has a new instagram @ kurzawa_karina Ronald's new instagram @ ronaldkurzawa Get our shirt: https://www.sisvsbro.com 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 SUBS

We are making GIANT crunchy slime so come along to see what crunchy slime mess we made!!! This is the most slimy and messy slime we made so far!!! Subscribe for more cool videos! http://bit.ly/2nCf9L4 SIS vs BRO instagram @ sisvsbro_karina_ronald Karina has a new instagram @ kurzawa_karina Ronald's new instagram @ ronaldkurzawa Get our shirt: https://www.sisvsbro.com Welcome to SIS vs BRO! This is where Karina and Ronald join forces to challenge each other in countless fun videos! Challenges, ga