Rocking up against the younger man, Cassidy groaned loud enough to stir up an echo. He wasn't worried about the bark of the tree, birches were smooth and didn't have many points where they could scrape him up if he leaned against it. He did just that after Soren started in harder, and tugged his hair. Cass was delighted to have this kind of roughness given to him. "God, baby," he gasped, "always gunna be yours."