Sen couldn't get enough of him and Blake found himself always coming back to the shapeshifter in spite of the fact that he had a dozen other distractions that he could devote time to. Yet if he got a text from Sen, he made the time necessary to see the other man. That was just the way that it was.
Blake let himself be pulled into the kiss and balanced his body with one hand on Sen's abdomen, flexing his nails in the man's skin. It was like a cat trying to find a good spot to lie down, rhythmic padding with the claws out. Then he slipped his free hand into Sen's hair and pulled him loose again, moving his lips down the side of his face, then to his neck, nipping at the pulse point near the juncture of his neck and shoulder. Did he care that his nails were leaving minor puncture wounds in Sen's stomach? Not really, though the smell of blood was making him hungry.
Still, he just moved down slowly, tongue and teeth working together to draw things out. He could easily just bite him, but where would the fun be in that? Why do that when he could lick his nipple and then press his open mouth to the area until he left behind teeth marks without breaking the skin, just to tempt him a little.