Lady Sherlock, naked and on her hands and knees, blinked her great gray eyes slowly as she stared forward and assessed the situation, looking down her thin, hawklike nose, and her brilliant intellect calculated all the options before her. From the top, or the bottom this time? She made a decision, and delicately took her husband's left testicle into her mouth and began sucking on it, before proceeding to lick and suckle the other one, and then lick her way up his shaft.
As she pensively sucked him, occasionally gazing up at his face to gauge Watson's reactions to her efforts, she pondered all the complexities of their latest investigation. She had found that she did her best thinking during fellatio, which served as her personal version of meditation, and this case, she thought, was going to be a three-blowjob problem!
It was good that Watson was always so obliging about lending her his cock, though she did enjoy sitting up and begging for it first. She could beg very prettily, and he seemed to enjoy watching it.
Watson loved watching her suck him so thoroughly. Her expression was exactly the same as a professor at his club, who would sit in his easy chair smoking his pipe with the same half-lidded eyes and brow furrowed in concentration. That look was absolutely adorable on Sherlock's pretty face, he thought, though in her case it was quite obvious what had captured his wife's rapt attention. He found it enormously flattering.
Sherlock came from a minor noble family in a country where aristocratic ladies were collared at an early age, and were thereafter led about on a leash, naked and on all fours, and never spoke, on the pretext that they had no need to, since all their needs would be met without asking. She was a lean woman with long, strong limbs, black hair both above and below, a pert rump, a narrow waist, and surprisingly full breasts for her frame. Her narrow face, with its hawklike intensity, was not classically beautiful, but it was striking, and her large, piercing eyes gave it a unique charm. Her senses were preternaturally acute, and her sharp eyes constantly observed details that others would have missed. One would never guess, watching Sherlock's breasts bounce and dance as she gracefully trotted along on Watson's leash, that she was in reality the greatest detective the world had ever known!
Her marriage to Watson had been an arranged one, of course, but it was a very happy one. Sherlock often reflected that perhaps the secret of their happiness was that each of them thought of the other as a beautiful dumb animal. Of course, she was correct in her assessment, and Watson was quite wrong, as usual. Watson, to put it rather mildly, was a blithering idiot, who did not even have the sense to lead her in out of the rain, unless she subtly tugged on her leash to remind him. She often worried that without her to look out for him, someone might have him committed to a home for the feeble-minded. He really should have been on the other end of the leash. (To be fair, Sherlock had a very low opinion of most people's intelligence.)
He did have her to watch over him, however, and though he was an imbecile, he was her imbecile, by God! She loved him deeply, and not just because of his magnificent cock, to which she had devoted years of intensive study. He was a truly kind and indulgent husband, who loved to take Sherlock for long walks in beautiful gardens and parks he thought might please her. When he finally noticed how Sherlock's eyes brightened whenever they passed a museum or art gallery, he started to make a point of taking her inside to see the exhibits, and would wait patiently for her, placing her in a sit, as she studied them from her position at his feet.
He even liked to take her to the opera, famously the ultimate test of a marital relationship. He did not care for it himself, but he loved watching the pleasure on her face as she listened intently. He would stroke her hair as she lay enthralled by the music, stretched out on her belly on the cushioned raised platform arranged next to his own seat so that she could see the stage. She loved music, and she would repay him by humming entire operas as she fellated him, with her humming reaching a crescendo as his member twitched and throbbed its way toward ejaculation. He never seemed to notice, and it never seemed to surprise him, that Sherlock had memorized an entire opera from one hearing. It did impress him that Sherlock could keep the same exquisite blowjob going for hours, however.
Ironically, in spite of the astronomical difference in their mental capacities, Watson was the one who had a growing reputation as an amateur consulting detective, and was increasingly consulted by the royal guards and by fellow aristocrats who needed problems solved discreetly. This was entirely due to Sherlock's skill at detection, not his. Her magnificent brain needed interesting problems to solve; she would have gone mad otherwise.
Even though Watson always got the credit, and Sherlock was at best viewed by those who even noticed her as a sort of pretty mascot, Sherlock was always the one who solved the mysteries. She actually expended more intellectual energy on working out how to steer Watson toward the solution and let him take the credit, without letting him know that he was being manipulated by someone much more intelligent than he was. That was merely part of the intellectual challenge her agile mind needed.
She found the need for indirection very frustrating at times, but so far she had always managed to steer him every step of the way toward a solution, which was no small feat when one was naked, speechless, and on the ground. Fortunately, Watson liked having her with him when he visited crime scenes (mostly as his adoring pet and eye candy, she suspected), sometimes in the company of her clever quim-hound Prospero. Sometimes she would be on Watson's leash, sometimes Prospero would be entrusted with leading her around, and very occasionally Watson would even let her go off-leash and nose around on her own, as long as she stayed in sight, a rare sign of trust.