The lady is a bit rusty perhaps.

While Tyrion was at first simply amazed that he was having his cock blown by a lovely Lady Paramount, it occurred to him after awhile that while Lady Stark possessed a boundless enthusiasm and appetite for her task, her expertise was somewhat lacking. As the first two virtues indicated she wouldn't be at all adverse to polishing up the one default, he decided to take the matter in hand, so to speak.

Idly stroking Catelyn's hair, and allowing himself a fondle of one of her exquisite breasts, he whispered, "More... use more tongue..." Catelyn's blue eyes peeked at him saucily, as she began to follow his requests. Tyrion gasped--the woman possessed what he was going to have to call a natural talent. As she began to twirl her tongue around his sensitive cockhead, he grasped the back of her head more firmly. "Very... very nice," he declared. "But... go deeper..." He thrust his dick a little further down her mouth.

Catelyn pulled back for a moment, and gave Tyrion a nervous look. "I... I don't know if I can... I..." She gulped, and then continued in a hushed, almost awed voice. "I've never done one this big before..."

Tyrion gave her hair a reassuring stroke. "I think you will find it is astonishing what you are capable of when you put your mind to it..."