Bracing one hand on the bed beside Arthur, leaning over him, Tony worked hard to control himself, to take his time. He didn't want to hurt him and yet was acutely aware of the time they had left together.

"Code words," he asked, twisting his finger as he worked it in and out, steady but not rough. "To let me know you're alone and I can call and get you worked up until you're begging to come," he asked, pausing and then working a second digit into him.