The Queen shall take charge.

It was Sansa who reached Joffrey first, eyes staring up at the King nervously. Cersei grasped her firmly by the shoulders and positioned Sansa before her son's cock. The Northerner took a deep breath and then lowered her face to the King's mammoth member, engulfing the head in her mouth. Cersei nodded, a faint smirk on her lips. "That's it, girl. Swallow that prick...." She turned her emerald-eyed gaze to her son. "Go on, Your Grace. Fuck her mouth." Joffrey followed his mother's instructions (not that he had to, of course--he was the King, after all) pistoning his hips so that his dick rammed in and out of Sansa's mouth. His Northern slut struggled to keep up with the pounding he was giving her, her tongue lathing over the surface of his prick. "Yes," hissed his mother, her hands fondling Sansa's breasts, "that is it, dear, make the little bitch gag."

Joffrey regarded the sight before him with pleasure--Sansa's spit-coated face, eyes eager, his mother behind her, staring at her son's cock entering and exiting the girl's pretty red lips. "That's enough," Cersei muttered at last, grabbing Arya. "Now it is your turn," announced the Queen, pushing the younger Stark sister before Joffrey's cock.