Matt growls in response--he doesn't realize he's doing it, because all he can smell is sweat and arousal and all he can hear is Tim breathing heavily and all he can feel is Tim, Tim using that tone that makes Matt feel woozy for some reason and so very, very turned on.

His dick is hard and already has precome on it, Matt eager, especially with Tim's voice. He hushes him with a kiss, rough and frayed around the edges, and pushes his finger in to stretch Tim out. He knows exactly how much Tim can take and how much he loves and Matt's proud of his ability to drive Tim wild.

Heightened senses are a very, very good thing during sex.