Well, two could play at this game. He moved a few rocks, not responding to what she said. When he was sure she was focused on her digging (looking rather petulant as she did so, he thought with an inward grin), he said, loud enough to be heard, "Je voudrais vous baiser ce soir, mon amour."
Then he went back to moving the rocks. The last one moved into the corner, he stretched a bit. "Think I'm going to take a swim," he explained, ambling down the path that led to the small beach.