This duet is so cute together :3. If you don't know who Kattie and Opal are, they are my cat O.C.'s, and I usually use them for animation exercises. Kattie and Opal are sisters, and Opal always finds a way to annoy her big sister, Kattie. Kattie is below, and Opal is up top. In this picture, I added some color(obviously) do add some life to the drawing. Anyways, I hope you enjoyed this art! BTW I'm hosting an art challenge, if you don't know! More info is in the comments of this animation: Take care, guys!