The Doctor reaches out, a quick, sudden gesture, and locks his fingers around the Master's wrist. No. No touching yourself. For a moment, he wants to push further, wants to step in close and make the Master yield, but he doesn't. He's not going to force this. If you want this, Master, you'll have to make a conscious choice.

He lets go of the Master, pulls his hand back, and waits again. He's not touching himself now.

He's curious. Can you admit you want this?