Sister princess

As he peered into the darkness of the den, he didn't notice his sister sneaking up behind him, but he should have known things seemed a little too quiet. He yelped slightly, more in surprise than pain, as she nipped the end of his tail, calling out to him. He whipped around to face her, seeing her already crouched into a play bow. "Aaaa-sh!" he complained in a whiny tone, "What are you doing sneaking up on me like that?" His brows pulled together in a grumpy furrow but a playful grin crossing his maw. He wasn't mad, he was just fooling around. Crouching down, he wiggled his rump just a little before he sprung toward her, trying to bowl her over and grab one of her ears with his front teeth. He'd show her who she was messing with! Unless she pulled one of her infamous tricks on him like she usually did - somehow when he rough housed with her, she always seemed to get him on the ground.