C21 I love you

Avalyn

"Are you sure you want to do this? What if it gets out of hand?" I asked worriedly. But both of them waved it way.

"We've done this like a million times, sis, don't worry. Now, you will say start and then we will start and when you see one of us over powering the other in human form, say shift and then we will fight in our wolf forms. It ends when one of us submits