Imagine my disappointment when I found only Pat in the living room. She had changed into a long, silk nightgown and was sitting on an armchair, chatting on her landline. She stopped talking as soon as she noticed me. I must have looked absolutely ridiculous, standing there stark naked apart from my collar but she made no mocking remarks. In fact she did not even laugh. She just ran her eyes over my body, smiled and said: "So you've finished showering at last. Good. Now you can make yourself useful and fetch me a glass of white wine." She gestured towards the drinks cabinet and, after a day of following her orders in the garden, I found myself unthinkingly opening it and pouring her the drink she had demanded. She was smiling as I handed it over but her eyes were not on my face. They were fixed lower down on my body on an area that was responding to her unwanted gaze despite my loathing of her. "Where is Sarah?" I demanded "I thought she was here." "Whatever made you think that?" asked Pat "I never told you she was coming." "But this collar!" I exclaimed "She put this collar upstairs for me, for her slave!" I couldn't believe I was talking this way to my despised mother-in-law, spilling out my deepest darkest secret while standing naked in front of her. I was too full of desire for Sarah to care, however, I had waited too long for this moment, the moment when Sarah would allow me to live out my fantasy, when she would embrace her new role as my Mistress rather than my wife. This must be one final tease, one final game to torment me before she made all my dreams come true. Yes, that was it! Pat laughed. "Did you hear that darling?" she said into the telephone "He thinks you want to be his Mistress!" As she spoke, she pressed the speaker button. "I told you he was a fool." said my wife's voice "As if I would ever play his perverted little games. I'm only interested in normal men, real men who want a normal relationship, not a sick little fantasy." "But you promised!" I stammered "You promised that if I obeyed your orders then you would be my Mistress!" "I certainly did not!" snapped Sarah "You know my views on that matter and they have not changed one bit!" "Then you tricked me!" I said bitterly "You and your bloody mother tricked me!" "No, I did not!" Sarah replied in a surprisingly firm voice "I have never lied to you and I never will. I never promised I would be your Mistress. I told you that if you did a good job, you would be hearing a lot more orders in future and you will, just not from me." "Then from who?"I demanded Sarah groaned. "Are you really that stupid? Can't you even work that out? Who have you been serving all day? Who did you serve just a moment ago?" I couldn't believe what I was hearing. Sarah had deceived me! I had spent all day slaving for her mother and now, instead of rewarding me, she was insisting I continue to serve that despicable woman who thought I was lower than the dirt I had dragged in from the garden. "You muat be joking!" I cried, glaring at Pat's smiling face "There's no way I'll ever do anything else for your disgusting, fat mother or for you. I'm leaving this house right now before I do something we'll all regret." I meant every word and I would have stormed out of the house as well if something remarkable hadn't happened. Pat rose up from her chair and looked down at me with a curious smile on her face. I'm rather short but I didn't remember her being that tall. She undid the sash around the waist and let her nightgown fall to the ground and at that moment my heart almost stopped. She was wearing boots, boots of shiny black leather that stretched to her knees and above them, her pussy was bald and naked. The rest of her body was naked too apart from a black,latex peep bra that gathered her huge breasts together in a sea of quivering flesh and cleavage and left her thick nipples exposed to the evening air. Pat said nothing. She simply pointed to the floor and in an instant, I was there, lying prostrate on the carpet while I licked and kissed her beautiful black boots. My body was trembling but my cock was larger and harder than it had been for years. "I'll call you back later dear." Pat whispered into the receiver "I don't think my slave will give me any more trouble tonight." My cock jerked when I heard her call me her slave. It was something I had dreamed of for most of my adult life but never dared admit. I had wanted to hear Sarah use those words but now I began to wonder if it wasn't more fitting that it was Pat who had taken on the role of my Mistress. She would have no need to act when she dominated and abused me. She truly despised me and believed herself my better. She would be a true Mistress and she would make me a true slave. Those were my thoughts as she sat back down on her chair and spread out her legs before switching on her TV. Those are the reasons why, despite my dislike of her, I grovelled at her feet and licked every inch of her boots with enthusiasm. That and the growing excitement in my cock. So excited was I, in fact that I soon lost control of myself. It was not surprising really after so long without real sex. I suddenly felt my cock jerking and then, to my horror,jet after jet of cum exploded onto Pat's boos, the carpet and her armchair. "You stupid bitch!" growled Pat "Wasting perfectly good cum like that. Well, don't just sit there, clean it up. You know how to do it. Don't miss a drop or you'll be sorry." She slapped one of her big, broad hands against the side of the chair as she spoke and I shuddered at the sound of it. I had no wish to be slapped or beaten by a hand like that. As quickly as I could, I licked up all my cum from Pat's boots and as much as I could from her armchair and the carpet, swallowing every drop as well as both hairs and dust. "Good boy!" smiled Pat, handng me some wine to wash out my mouth "Sarah told me your tongue was your most talented appendage. Now get up on your knees and see if you can put it to better use." I look longingly at her pussy but she shook her finger. "The honour of worshipping my pussy has to be earned." she informed me "First you must worship another of my assets to the required standard." She stood up, turned her back towards me and bent over the armchair, legs apart. Despite beong so recently depleted, my cock started to stir again. Sarah's lovely big arse was one of the things that had most attracted me most to her but her mother's huge buttocks put hers to shame. They were saggier, of course, but it took only a few moments fondling, stroking and kissing to realise they were still firm enough to provide any man with hours of pleasure. After my initial fumblings, I began by gently stroking every inch of Pat's well-rounded cheeks,then kissing and licking them till they fairly glistened. My Mistress grunted impatiently and I took this as my signal to turn my attention to the jewel in her anal crown. Prying her beautiful cheeks apart, I pressed my face between them and kissed the ring of her bumhole. From its smell and taste, I could tell it had recently been washed very thoroughly indeed. My tongue darted out and ran along its rim, causing Pat to gasp appreciatively. Her gasps were even louder when I pushed my tongue inside her and started licking her tight hole from within. As I alternated between licking, sucking and kissing her delicious arse, my fingers began toying with her pussy, finding and stroking her clit. It was not too long before she cried out in excitement and I felt her juices engulf my hand. Gasping for breath, she collapsed onto her chair and lay there for several minutes as se caught her breath. Eventually, however, she turned back to face me and opened her legs once more. "My cunt!" she breathed, her face red and glistening with sweat "Worship my cunt! Make me cum again!" I was happy to oblige. Leaning forward, I placed my mouth against her glistening pussy, kissed it adoringly and began to slowly lap up her juices. Almost at once, I felt her strong, thick thighs close around my head and her powerful hand press down from above. I could see nothing now but my Mistress' flesh, smell nothing but the natural perfume of her lust and excitement. She, or rather her pussy, was my whole world now. I began slowly, kissing her gently then running my tongue along the external folds of her flesh. She gave a little moan and then a push of her hand signalled that it was time for my tongue to go inside her. I pushed closer against her and thrust out my tongue. I felt it enter her and then I withdrew it again just as quickly. I played with Pat for a few moments more, fucking her with my tongue while she groaned in appreciation. Her hand soon signalled, however, that the time for teasing was over. It was time for me to devote my energies to the centre of her womanly beauty, her glorious clit. I approached it tentatively at first, circling it slowly with the tip of my tongue before tonguing it faster and more vigorously. As Pat's breathing grew more rapid, she squeezed her thighs more tightly against me and pressed my head tighter against her pussy. I was sucking her clit now, sucking it with increasing speed while I continued to lick and occasionally rub it with my teeth. Pat began to moan with increasing excitement, urging me on with some of the most obscene language I had ever heard a woman use. I licked, I sucked, I gently bit, I worshipped her clit with ever more frenzied devotion until at last her body shook and she cried out in pleasure as her pussy flooded once more with juice, soaking my face in the future. I had drunk it all by the time she finally released me. It took us both some time to recover. I was still lying on my back, breathing heavily, when she picked up the phone and dialled Sarah back. "You were right darling." she gasped "His tongue is wonderful. He is so obedient too. Youur gift is going to make me very happy. Thank you so much." Sarah said something which I could not hear. "Of course I will darling. A dog always gets a treat after it pleases its owner. I'll take him upstairs directly and then I'll give him the fuck of his life. You'll enjoy that, won't you slave?" I looked up at her smiling face and nodded eagerly. "Yes Mistress!"