Sister-in-law and her sister

The National Day and Mid-Autumn Festival holidays are over. My boss, my sister-in-law, her older sister (referred to as "Big Sister" in this article), and I went back to Guangzhou. Big Sister is around 30 years old and has two children, both delivered via C-section. She's about the same height as my sister-in-law, but much fuller-figured than her due to middle-age weight gain—quite the voluptuous figure. Because of the painkillers she received after the C-sections and improper post-operative care, she's been experiencing back pain. This trip with us was to the Foshan Orthopedic Hospital for treatment. Big Sister booked an appointment online for tomorrow. Since my sister-in-law is at work and my boss is busy, I was tasked with taking Big Sister to the hospital.

The next morning at 7 am, I took Big Sister to the Foshan Orthopedic Hospital. After going through the procedures, the doctor prescribed a week's worth of plasters and a bottle of liniment similar to liniment for bruises, instructing Big Sister not to bend over, lift heavy objects, or sit for long periods, among other things. We arrived back in Guangzhou at 3 pm. Everyone went back to their dorms, with Big Sister temporarily staying at my sister-in-law's. I was quite tired after running around for several hours. I had just finished showering and was about to go to bed when I received a call from my older sister, asking me to come down and help her apply some ointment. I muttered a few words of dissatisfaction to myself, but I went down anyway.

My sister was already waiting for me in her pajamas, holding the medicine and telling me to apply it to her back for 5 minutes first, waiting for it to be fully absorbed before applying the ointment. After saying that, she sat down in a chair and pulled up the back of her clothes a little, revealing her fair back. I poured the medicine into my palm and covered her spine. My sister let out a soft "hiss," saying it was a little cold, and asked me to rub the medicine in my palm to warm it up first, so it would be more effective. I was impatient but didn't dare to say anything, so I did as she said. After applying it along her spine, my sister whispered that she hadn't applied it to the area around her tailbone, saying that it was a little sore there. What's the tailbone? I couldn't quite place it. My sister was a little shy, but still told me it was the area above her buttocks. I was secretly pleased; I could take advantage of the situation! This time, I poured more medicine into my palm, rubbed it slowly to warm it, and placed my hand on my older sister's back. I gently stretched the edge of her underwear, pressed two fingers against her buttocks, and asked if it was there. She nodded. I said I needed to pull her pants down a little, as it would be more difficult to do this. She didn't say anything, just nodded again. She's a mother of two, yet so shy!

I pulled her pants and underwear down a bit. Since she was sitting in a chair, like someone getting an injection in the buttocks at the hospital, she was sitting on the edge of the chair with her buttocks sticking out. I placed my hand over her buttocks again. Because I had poured more medicine, some of it dripped onto the edge of her pants. As I expected, some of it slowly flowed down her buttocks. When it was almost inside the area covered by her underwear, I quickly scraped it up her buttocks with my fingernail. I clearly felt her shiver! Then I poured more medicine and repeated the process. This time, I deliberately waited until the medicine was no longer visible before scraping it up again and repeating the process. It was about 1 centimeter away from the older woman's anus. She couldn't wait any longer and said it was okay, to wait for the medicine to absorb before applying the ointment. I said okay, secretly hoping to play a little more, it was a bit of a shame!

While applying the ointment, I suggested she lie face down on the sofa, as it was harder to apply while sitting. She agreed and lay face down. I picked up the ointment; it was a 10-centimeter square, requiring three pieces. I started from the top, and the last piece was halfway up her buttocks. I didn't tell her this, and after applying half, I said, "Sister, your pants are blocking the way, you can't apply it, you need to pull it down a little." She nodded again. I gently grabbed the edges of her pants and underwear and pulled it down about 3 centimeters. A plump, ripe peach was revealed. Only women who have given birth have buttocks like that; I almost drooled. She naturally squeezed her legs together, only her buttocks were visible. After applying the ointment, I did a little magic (basically, just smoothing it out with my fingers)! Then, my older sister's mysterious anus was revealed. The light brown anus contracted slightly upon contact with the air. It was incredibly alluring! Of course, I wouldn't let such a beautiful sight pass me by. I told my sister to wait a moment while I got the hairdryer. I explained that using a hairdryer would make the freshly applied ointment more effective and prevent it from sticking off. My sister seemed to know this little trick and agreed. I turned on the hairdryer on the hot setting and gently patted her buttocks with my fist, like a back massage, mainly to experience the elasticity of her buttocks. Then, I pressed my thumb against her buttock crease and told her it wasn't sticking very tightly, leaving gaps. I then rubbed back and forth to make the ointment adhere better. Finally, after completing all the steps, I mischievously touched the hairdryer nozzle to her buttocks. The nozzle was about 80 degrees Celsius, which burned her, causing her to arch her back. I quickly apologized, saying it wasn't intentional and was an accident. My sister didn't seem to mind. I said I'd go to the kitchen and get some peanut oil to rub on it; it's good for burns. I quickly went to the kitchen, poured some peanut oil onto a paper towel, soaked it, and placed it on the burned area. Peanut oil is very effective at cooling, and if done promptly, it won't leave a scar, but my sister was making a mountain out of a molehill. My main intention was to use the peanut oil to wet my sister's buttocks, then I'd wipe it clean, and then… Watching the peanut oil slowly seep into and around my sister's buttocks, I used the paper towel to wipe away the oil around the area, not daring to touch the buttocks area. My sister felt the oil seeping into the buttocks. She gently moved her buttocks. I asked my sister if she still felt the heat. She said no. I removed the paper towel from her buttocks, and casually ran a corner of the paper towel along the buttocks, rubbing the excess oil into the area. The burned area was a little red. I told my sister that applying burn ointment tomorrow would be fine; I'd feel guilty if it left a scar! My older sister chuckled and said, "If your brother-in-law finds out you burned my butt, he'll kill you! Look at you, so clumsy, hurry up and wipe the oil off for me." "Okay," I said, taking a tissue and wiping the oil around the burn. Looking at the shiny, oily cleft, I pressed the tissue against my middle finger and gently rubbed it over the area. If I pressed harder, I could touch her anus through the tissue. My sister visibly shivered again. Then she asked me for a tissue to wipe it herself. She arched her buttocks slightly, took the tissue, stretched it tightly over her cleft, and rubbed it over again, feeling there was still some oil. Watching this, I felt a surge of impulse. On a whim, I reached out and pried open my sister's buttocks, saying it would be easier this way. My sister was immediately mortified, calling me a little pervert and letting me pry her buttocks open, but her hands didn't move. I stared at her butt crack for about 10 seconds before she finally reached out to wipe it. Then she told me to get a different tissue, saying it was too oily to clean properly. I released her butt crack, pulled out a tissue, and then continued to pry it open. Smiling, I said to her, "Isn't my service attentive?" She shyly wiped it clean and threw the tissue at me. "You're taking advantage of me! You've got some nerve! I'll twist your ear off!" she thought, but she didn't seem angry. Reassured, I said, "Ma'am, there's still a little oil stuck here. If you don't wipe it clean, it'll attract unwanted attention. Let me wipe it for you!" I quickly touched the oily tissue with my middle finger, pressed it against her anus, and hooked it upwards, holding my middle finger in front of her. "See?" I said. She buried her face in her arms, too ashamed to look. I mentally shouted that I had succeeded, and then continued to press my middle finger on my older sister's anus, gently teasing and pressing. Surprisingly, her anus opened slightly under my teasing, then contracted. Following the contraction, I inserted half a knuckle of my middle finger. My older sister, with her head buried, let out a soft moan. I pulled my middle finger out and told her that some oil had gotten inside. Ignoring her reaction, I pressed my middle finger on her anus again. Once more, her anus opened and contracted, and this time I inserted a full knuckle. I gently teased her inside, and she seemed to enjoy it, constantly wriggling her hips to accommodate me. Thinking about pulling it out, applying more oil, and inserting it deeper, my older sister's phone rang at the worst possible time! It startled both of us!

I snapped out of my daze and grabbed my older sister's phone. It was my sister-in-law calling. I handed the phone to my sister. She answered; it seemed my sister-in-law was asking if she was back from her doctor's appointment. Seeing that my sister's buttocks were still mostly bare, another idea popped into my head! I pressed my middle finger against my sister's anus again. There was a noticeable pause in her conversation with my sister-in-law, but it quickly resumed. My sister's anus, however, remained tightly contracted, resisting the intrusion. Seeing this wasn't working, I tried a different approach. I moved behind her, spread her buttocks apart with my hands, and gently breathed on her anus. My sister turned around instantly, looking at me in surprise. Until my tongue touched her anus, she was incredulous, forgetting she was still on the phone with my sister-in-law. It wasn't until my sister-in-law called out to her on the phone that she snapped back to reality. My sister quickly said the signal was bad and we'd talk again when she got back, then hurriedly hung up! I immediately gave her a sharp rap on the head and said, "Are you a dog? You even lick anus!" Ignoring my sister's reaction, I used my tongue to pry open her anus and thrust inside, sucking and pushing. My sister had never experienced such pleasure before; she immediately raised her knees, forming a doggy-style position, making it easier for me to lick her anus. At the same time, she touched my head with one hand and covered her mouth with the other to prevent her moans from becoming too loud! Then, I pulled down her pants and underwear, revealing a full, juicy vulva. Only a few pubic hairs were curled up, revealing a clitoris the size of a peanut. Her deep red labia majora were engorged and open, revealing bright red labia minora and the vaginal opening. Without any further movement, I moved my mouth from her anus to her vaginal opening, extending my tongue to lick from the vaginal opening to her anus, pushing the accompanying vaginal fluid and my saliva inside. After several repetitions, I suddenly sucked on the neglected clitoris and gently bit it with my teeth. My sister immediately erupted, trembling uncontrollably, and a gush of vaginal fluid spurted from deep within her vagina!

After her climax, the older woman took a few deep breaths, exclaiming how satisfying it was. She told me how amazing the young pervert was, saying it was her first time experiencing oral sex from a man, and a chubby young hunk at that! I said the best was yet to come, and that I was getting up to take off my pants. At that moment, she said she couldn't, her sister and brother-in-law would be back soon. My mood plummeted; it was only 5 pm before I got off work! Wasn't this going to make me suffer? The older woman said her sister had come home early to cook, and she'd give it to me tomorrow! Since that was the case, I didn't say anything.

[The End]

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Sister-in-law and her sister

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