Voluptuous treatment

 — No, I can't agree to that.

 — Why? What bothers you about my suggestion?

 — And aren't you yourself bothered by your own words?

 — Of course not. And why should anything bother me? I'm your sister, who wishes for your recovery. And it doesn't matter what methods and means are used to achieve the goal.

I understand perfectly well that my sister is one hundred percent right. She is genuinely concerned about my health and is doing everything in her power to cure me. Moreover, as a doctor, a woman knows better what I need now to recover. However, my sister's suggestion is so unusual and specific,

that I can't even believe it's coming from her. Nevertheless, Galya looks quite serious, and she speaks with that decisive tone that leaves not the slightest chance to suspect her of trying to play a joke on me. My sister really wants to do what she proposed.

 — And won't you be ashamed? — I persist.

 — Not in the slightest, — she snorts in surprise. — You're my own brother. Why should I be shy around you?

There's no arguing with that either. Galya was never known for being particularly modest. In her youth, my sister loved to carefreely stroll around our childhood room half-naked, openly displaying her girlish charms, barely covered by tiny panties and bras. Without any embarrassment, she repeatedly changed clothes in front of me, revealing her most intimate, hidden places to my inquisitive gaze. The girl's dirty underwear was often scattered all over the room, arousing lustful dreams and fantasies in me with its appearance and smell. But all of that still doesn't compare to what my sister has in mind now.

 — And where do you want to do this? — I inquire.

There's no point in arguing further. Especially since my sister is so stubborn that sooner or later she will definitely get her way. So why waste energy and time on useless talk? Understanding this, I unquestioningly submit to the woman's demands. I take off my shirt and comfortably settle, half-lying on the sofa. During this time, smiling joyfully, Galya quickly takes off her skirt. Then it's the turn of the black tights and white lace panties. After undressing, my sister carefully folds her clothes on the coffee table, saying as she does:

 — Don't worry. Many people are treated this way. It might not be very pleasant, but there's nothing to be done about it. If you want to recover, you have to endure all sorts of nastiness. And it will definitely help you. In a few weeks, you'll be as healthy as a cucumber. You'll even thank me for my persistence.

Having dealt with the clothes, the woman climbs onto the sofa with me. Standing in front of me, she spreads her legs wide and squats a little, so that my face ends up opposite her crotch. Despite my rich experience of intimate relations with various women and my insatiable, sexy wife, I still cannot look indifferently at the loins of my older sister. I have always been very aroused by her prominent pubic mound, covered with thick chestnut curls, the slightly parted labia resembling cockscombs, the alluring mystery of the tender pink flesh peeking through between them.

In my youth, I would go into ecstasy every time I managed to see my little sister's intimate "charms." Those brief moments when my gaze was treated to the enchanting view of a girl's crotch were a real holiday for me. An unearthly happiness, which the carefree Galya generously bestowed upon me almost every morning and evening when she changed in front of me, and which I recall with excitement in all its details to this day. It was an event that always made my head spin, my blood boil in my veins, and a pleasant bitterness invariably ignited below my stomach.

Over the years, opportunities to peek between my little sister's legs became fewer and fewer. Galya got married and moved in with her husband. I also started a family. We didn't meet often, and situations where I could admire my sister's loins arose even less frequently. But despite all this, my sister hasn't changed her behavior in the slightest. She still perceives me only as a brother, in front of whom she can unashamedly lift her skirt, expose her bare breasts, and even carelessly remove her panties.

It's no wonder that now she did what she did without any hesitation. After all, to my sister, I am just an ordinary patient who needs treatment. So she's treating me, paying no attention to trivial conventions. Bracing her knees against the back of the sofa, Galya quickly shoves my head between her legs. Decisively pressing my face into her crotch, the woman patiently instructs:

 — The main thing is, don't get lost. Open your mouth wide, press it tightly against my slit, and swallow quickly. When you're ready — tell me. I warn you right away, I haven't washed today. It might smell a bit, but don't be offended. That's just how it turned out.

I once again unquestioningly carry out my sister's orders. Opening my mouth wide, I impatiently press against her wonderful loins, literally swallowing them whole. I greedily sink my lips into the female shame. Carefully part Galya's thick labia with my tongue. Delightfully bury my nose in the stiff curls of the red "triangle." They do smell, but it's a pleasant fragrance, it stirs my body and excites my mind. Even greater pleasure comes from the incomparable taste of the female vulva. A multifaceted "bouquet" of exquisite flavors that takes my breath away and makes my heart beat excitedly.

 — So, are you ready? — Galya asks impatiently, not letting me fully enjoy her "little scarlet flower."

I affirmatively grunt in response. The woman tightly squeezes my head with her thighs. After that, a powerful stream of hot liquid bursts from her body. Slightly salty in taste, it burns my tongue and palate, quickly fills my mouth, so I have no choice but to start hastily swallowing it. And I'm forced to do it, almost choking on the endless stream of female urine that keeps spurting and spurting from my sister's slit.

Galya pees into my mouth unbearably long. Obediently swallowing her "fiery cocktail," I can't help but wonder where so much fluid accumulated in the woman's bladder. The endless stream of "lustful medicine" keeps flowing and flowing, relentlessly filling my stomach with its warm heaviness. It's so abundant that I can barely manage to pass it through my throat. Convulsively taking gulp after gulp, I'm only worried about not spilling a single drop of this "magic potion."

Suckling at the female shame, I am grateful to my sister for everything she is doing now. I even like that she came up with such an unusual treatment method. It's good that Galya herself agreed to be my "doctor." Surely I would never have agreed to drink someone else's urine. But this way, I willingly allow my sister to pee into my mouth and find this activity quite amusing and pleasant. Amusing because I would never have thought before that my sister's urine could become medicine for me. And pleasant — because I get to taste the loins of my adored little sister for the first time in my life.

But all good things must come to an end. Despite its seeming inexhaustibility, the stream of fluid from the woman's body loses its force. The full-flowing river imperceptibly turns into a babbling brook, which in turn quickly breaks up into separate drops. I willingly swallow Galya's urine, and when it ends, I diligently lick my little sister's vagina. Forgetting all decency, I enthusiastically caress the female clitoris, play with the small labia, persistently try to penetrate the hot depths of my sister's loins.

She doesn't mind this mischief of mine. My sister only slightly parts her thighs when she finishes

peeing into my mouth. But at the same time, the woman doesn't prevent me from fully enjoying her shame. She patiently waits until I've had my fill of licking her "intimate slit." Galya surely understands perfectly well what's going on in my soul, so she's in no hurry to separate my lips from her crotch. As if noticing nothing, the woman allows me to indulge in the taste of her vagina for as long as I want. And only when I'm already satiated with its aromas does Galya decisively stop my "treatment" and quietly say:

 — Little brother, I see you're an obedient patient. Diligently following all the prescriptions of the attending physician. Drank all the "medicine" without leaving a drop. Even licked up the last drops. I liked it.

 — And will this treatment method really help me? — I ask, to at least slightly calm the exciting tremor in my body.

 — Of course, — my sister answers confidently, pulling up her panties. — Urine has many healing properties. Especially when it's fresh, straight from the bladder.

 — And why does it have to be female?

 — Firstly, female urine is more beneficial for men and vice versa. Secondly, it's important that it's from as close a relative as possible. Therefore, dear little brother, only I can help you.

 — And how long will my treatment last?

 — About two weeks, until my period starts. Then we'll see, maybe we'll have to continue the course for a while longer.

 — And can't we continue treatment during my period?

 — Silly, — my sister laughs. — How am I supposed to pee into your mouth with a pad between my legs? Unless you plug my slit with your tongue.

 — You could use tampons, — I suggest.

 — We'll see. For now, I'll give you my "potion" once a day. I hope it won't last long.

I, of course, was of a different opinion. But Galya doesn't need to know that. It's enough that my sister chose such an unusual method for my treatment. For my part, I will try to make it last as long as possible. I will do everything in my power to fully enjoy the unique opportunity fate has given me. I will pleasure my little sister's vagina with my lips and tongue until she understands that she can no longer exist without my caresses and kisses.

And the very next day, I was fortunate enough to achieve my goal. This time, we slightly changed the position in which my sister "treated" me. At my request, Galya now turned her back to me. The woman thrust out her massive buttocks, which ended up slightly above my face, and as before, spread her legs wide apart and squatted a little. Already without any shame, I parted her labia with my fingers and greedily pressed my lips to them. Joined in a juicy kiss, so passionate and restless that even my wife hadn't experienced such.

I seemed to merge with my sister into one whole. Her crotch became my face, her thighs my cheeks, her vagina my mouth, her labia my lips, her clitoris my tongue. My gaze was treated to the delightful sight of a naked female behind, her huge white hemispheres of buttocks, the deep gorge between them overgrown with a thick bush of red hair, and the large, tempting circle of Galya's "asshole," into which my nose was literally buried.

Aroused by what I saw and engrossed in what I had to feel, I paid no attention to the bubbling fountain of hot liquid I had to swallow. Forgetting everything in the world, I allowed my sister to urinate into my mouth as much as she wanted. For me, the main thing was that this pleasure lasted as long as possible. And everything else was of no importance. Even the fact that at the end of the "treatment procedure," the woman couldn't hold back and "let out wind" under my nose.

The smell was simply awful, but I endured it steadfastly, although my nose stung from the unbearable stench. But every pleasure requires sacrifice, so I resigned myself to having to endure some unpleasantness just to see and enjoy my sister's loins again and again. I was ready for anything for those brief, sweet kisses that Galya inadvertently bestowed upon me with her sensual "shameful lips."

When it was all over, my sister said in an apologetic tone:

 — Sorry, I couldn't hold it in.

 — Oh, come on, — I reassured her. — It's fine.

 — No, I'm sorry, I really didn't mean to "fart" under your nose.

 — Stop it. Anything can happen. You're my own sister, and it doesn't disgust me in the slightest. If you don't believe me, I can even kiss you there, like family.

And without waiting for my sister's answer, I pressed my lips to her rear "nut." Galya shuddered from my audacity but didn't resist the kiss, only whispered agitatedly:

 — What are you doing, brother. You can't do that. I'm ashamed. Stop it immediately. What will others say.

But I no longer heard any of that. Forgetting all reason, I kissed and kissed my sister's ass. Passionately, burningly, insatiably, with the greed only a man mad with passion is capable of. And it seemed to me that Galya's back hole reciprocated. It seemed to reach for my lips, trembled from the caresses of my tongue, even relaxed a little under the influence of the fondling I generously bestowed upon it.

And encouraged by this union, I made a timid attempt to penetrate my sister's anus with my tongue. At first, nothing came of it, but I was persistent. I kept increasing and increasing my onslaught until the "fortress" of the female behind fell. The "gates" guarding the entrance to the depths of Galya's cloaca opened slightly, and I immediately thrust my tongue in there.

At first, my sister reflexively tried to push my tongue out of her ass, but I wasn't about to retreat. A short but desperate struggle ensued between us, the winner of which, of course, was me. Galya simply wisely stopped resisting my persistence. She relaxed and allowed me to "have" her in the ass with my tongue as much as I wanted. The woman let me into the depths of her body, rewarding me with a host of new, previously unknown tastes and sensations.

And I made full use of this opportunity. I enjoyed my sister's ass with such frenzy that I lost all sense of space and time. Forgetting everything in the world, I lustfully consoled myself with the female shame. Paid no attention to the "strain" happening in my pants, nor to the fact that Galya was practically sitting on my face, nor to the trickle of viscous fluid seeping from her vagina onto my chin...

When it was all over, my sister rose from my face. She looked a little embarrassed and somehow confused. Giving me a strange look, she said with admiration in her voice:

 — I'm probably the only woman in the world who has felt her brother's tongue in her ass.

 — That's my gratitude for everything you've done for me.

 — I hope it wasn't the last? — Galya asked with a sly smile.

 — Of course not. You're my older sister, and I'm ready to do anything you wish. Just don't be shy, tell me.

 — Good, — the woman answers in a mysterious tone. — Until next time. Tomorrow we'll continue the treatment session.

And we continued. Tomorrow, and the day after, and many days after that. For the first two weeks, the reason for these meetings was my treatment. And then Galya's period started, and she stopped peeing into my mouth. But despite this piquant "obstacle," the woman still willingly allowed me