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The Doctor stood in front of Davros holding a gun to his head, his eyes blazing rage and his jaw clenched as he tightened his grip. The Master came from behind him, smirking as he ran his cold fingers along the Doctor's arm reaching his hand where the pistol lay, gently lifting his arm so that the gun was aiming directly at Davros' forehead.
"Come on Doctor. Do it. He deserves it for what he did, for what he did to Gallifrey." The Master whispered in his ear. He continued caressing him lightly, feeling the Doctor’s pulse flutter against his touch.
The Doctor remembered the war. The screams of billions of innocent lives ringing in his ears. The smell of smoke burning his nose and stinging his eyes. He felt tears prick at his eyes as he remembered the family he once had. He gripped the gun harder, his knuckles turning white, a look of pure hatred on his face.
“Come on, take revenge. Avenge your people, your planet.” The Master said against the Doctor’s skin causing it to prickle. “You deserve it after everything he’s put you through.” He added
The Doctor looked away, debating his decisions. When he looked back he had made up his mind. His finger tightened on the trigger, firing a loud bullet straight into his head causing Davros to fall limp, blood trickling down the side of his head. The Doctor felt a surge of satisfaction, shooting him three more times, each shot increasing that feeling. Once he ran out of bullets he dropped the gun and stared at what he’d done and he couldn’t help but smile, feeling the Master continue to caress him, planting kisses around his ear and along his jaw.
“Very good. So very good, Doctor.” The Master praised, continuing to plant kisses all over him. The Doctor felt another surge at knowing he did well, leaning into his caresses and kisses and whispered praise, fully embracing the Master and this new side of himself he was only beginning to see.