Jack and Blake: Fanservice
Blake was there because it was a school function and he, a teacher at the school and employed by the school to play an active role, was expected to be there. Not only that, but Ryu had wanted to come. Wendy was there, somewhere. Blake had to keep a watchful eye on his charges in group settings. Little things could set them off.
Blake was not planning on jumping. Even without being submerged in ice cold water, the chill of the air was affecting his old injury. He stood off to the side, close enough to the heated area to benefit from its warmth, but far enough away to be able to see Ryu at all times. The old slayer's keen eyes landed on the slim figure of one Jack Cavanaugh emerging from the lake. The banshee walked casually from the water, dripping water, clinging shorts, and joined the equally soaking wet figure of Mr. Kaden.
Blake admired both men from a distance, a somewhat envious look to him at their easy friendship and warmth. Blake had been a lone hunter all his life, but the thought of having friends, real friends who weren't just connections for information or other resources, was a nice one. Blake had never once entertained the idea of taking a lover. His profession and his family history invariably meant any close attachments would end in death. But he was human, albeit mixed with dragon blood, and companionship was a natural craving.
Jack standing all but naked and smiling stirred all sorts of feelings in him and Blake was reminded of what Jack said to him while under the influence of a truth serum. It had to be true, didn't it?
When Jack glanced his way, Blake quickly looked away and rubbed his thigh, shaking his head.