Sirius made a face, simply because of how Severus said 'blood' so close to 'pure'. He heard his family motto, so ingrained in his mind, and everything inside him revolted. With a shake of his head that was followed by really just shaking his whole body around, he jumped to his feet. "We'll see! Hey, I'll catch up with you later, James needs me."

James didn't look overly needy, but he was sure James would welcome his return anyway. And he felt as if he needed some room to breathe. And so he ran over to the lake's shore, catching James, who had gotten out of the water, and tackling him right down to the ground.

Very needed.