Humming softly at the feel of Kurt's fingers wrapping around his curls, Blaine dove back in, pressing his tongue in further this time, feeling it breach the ring of muscle, and twisting it once past. He quickly lost himself in everything that was Kurt; fingertips digging into the toned flesh beneath his hands, nose pressed close as he breathed in the earthy scent of Kurt, tongue pressing and twisting and slowly beginning to fuck Kurt just the way he was eager to do with his cock.
But for now, Blaine just wanted this--to make Kurt come apart with his mouth, and lose himself in everything that was the most amazing boy he knew.