The Master hasn't finished speaking when the Doctor grabs the back of his head and pushes him back down, his touch not gentle at all now. He leans in closely, bringing his mouth to the Master's ear, his weight shifting to the hand in the Master's hair and pressing the other man's face into the pillows.

"Shut. Up."

He pulls back and curls his fingers into the Master's hair, jerking backwards as the Master lifts his head. Then, in a quick motion, he straddles the Master's thighs, his fingers letting go of the Master's hair and trailing over his back to his buttocks. The Doctor squeezes with his right, hard, and runs the index finger of his other hand along the cleft to the Master's anus. He pushes against it and feels resistance. Pressing harder, he lets go with his right and slaps his palm against the already reddened skin of the Master's ass. Come on. You wanted this, now play along.