That clench of the other's fingers did indeed drive Damien further, even more so when his name was moaned so good. And so he used his tongue even more often with each suck, as well as a quicker pace.
He could feel the shivers at his touch, and the physical yearning for more as his fingers explored. At those very arousing words from Oliver, Damien continued to push his fingers deeper into him as he sucked, more and more inside that tight ass.
Then pulling out slowly, only to push back inward, probing deep. Curling at some points, spreading, scissoring.. and even more so, his fingertips also glided again the prostate. And then again, again, while also he now was sucking him off in quicker motions than before, driving Ollie even more to the edge.