The Master had taken over everything. Earth, the universe and now- now he had the one thing he'd always wanted. It was better than a birthday present (he'd had over 900 birthdays, not one gift the least bit memorable.) Even better than taking the galaxy by it's throat. It was something he'd wanted for what felt like eternity. The Doctor.
The moment he had everything, he searched for the collar and laced it around the Doctor's neck tightly. He protested, which made it all just so much sweeter. The Master strapped the leash into a pole on the ground and sat down next to his Doctor, adoring his captivity. He pulled him into his arms and stroked his hectic brown hair, the Doctor sitting in silence. "I win." the Master whispered into his ear, scratching behind it.
The Doctor was limp, unresponsive. He'd watched the universe explode and writhe and crumble. He'd watched the Master enslave the human race. And now there was nothing he could do but sit with someone he so wanted to love but couldn't. Not when things were like this. "Master?" he asked quietly.
"Yes, Doctor?" he answered, lavishing all the control he held in his palm as he caressed the helpless Doctor's face, noting the softness of the skin.
"Why do you need the universe?" he brown eyes twinkling in sadness.
The Master grinned and rested his head on the Doctor's shoulders, inhaling him. "Because I want you."