Ash's hands reflexively went out to touch over Marie's head as she moved her mouth over his erection. This was certainly a nice way to "catch-up" with Marie. He could always just close his eyes and let her mouth do its work, but he liked to watch her too. See the enjoyment she got out of it. Much like Marie already knew, not many girls seemed to enjoy giving back what Ash often provided for them.
He made a small noise of approval and felt his hips slowly rock forward. But not a great distance. A slight push to urge her to continue.