Now that you all checked out Corey Riffin, it's time to check out his sister. This lesson will show you "how to draw Trina Riffin from GrojBand", step by step. Like with all sisters Trina is also a very over dramatic gal that also happens to be her brothers enemy. She takes things to the extreme by being an extremest. The funny part about the whole thing is, Trina has no idea that her brother Corey steals her diary on a regular basis. It doesn't really matter how they feel about each other because one thing will remain the same, they are siblings and siblings will always bicker. Have fun people and enjoy your drawing day on this fine Sunday.