A Mountain Cabin and My Wife's Sister
Posted: 04 Oct 2025 18:48
I thought I'd share this story as it seems appropriate for this site and it was extremely hot for me. I'll try to retell from the best of my memory. My wife, her sister, my brother-in-law and I rented a mountain cabin last winter to slow down a bit and get away from the fast-paced activities of daily life. We are all in our 40's. My wife and her sister are both Latina, beautiful I might say! Both have brown hair and brown, expressive eyes, with full lips. They are both light complected. My wife, Lorena, works out constantly and is extremely fit. Gina, on the other hand, rarely works out and is gifted with a lithe dancer's body. Gina can be snooty and sarcastic at times, but deep down she has a really soft heart. Over the years, I've come to find out that she gets off on brushing against me and teasing me. Always done as 'incidental' contact. At first I thought the 'contact' was just a coincidence, but nope, I'm convinced that she does it to tease me and probably gets off on it. I know she would never cross the line, and I think it's her discrete way of turning me on and vice-versa.
But enough of that. We're in the mountains. It's late evening and we are in the cabin den. There are two bedrooms downstairs with a common wall between them, and it's an open floor plan where the bedrooms open to the kitchen and den. Upstairs are two more rooms with bunk beds for kids. It is so cozy and warm, with snow lightly falling outside the huge den window. The four of us are on the couches, chatting and planning the next day, the kids are already asleep upstairs. It was a long day and stressful drive to the cabin, and I can see Lorena's eyes slowly closing, and same with Danny, Gina's husband. Danny says he's had enough, says good night, and retreats to their bedroom. Lorena sees him walking and says 'me too'. She calls for me to go to bed, and off she heads to our bedroom. That leaves Gina and I. We make small talk for a bit, and I feel myself getting horny and a bit hard. She is wearing baggy sweats, so nothing exciting visually, but my mind races as I think of all the times she has brushed by me and made contact. My mind wanders...
I'm now fully hard and figure I'd better get to bed. Gina is distracted by her phone, and I take it as an opportunity to get to bed without her noticing my bulge. Walking to the bedroom, I close the door behind me (or so I thought, more on that later!) and see my wife on the bed. She looks so good, her eyes a bit drowsy, but she's awake. I lay next to her and begin kissing her neck. Her eyes open wider and she purrs 'Mmm!'. I reach down and begin to rub her pussy through her yoga pants. She smiles coyly and gently pushes my hand away.
"My sister and her husband are in the next room!" she says in a forced whisper.
"They both went to bed and they're zonked. Both of them looked super-tired, I'm positive they're asleep already," I respond, and I lift up her sweater to reveal her bra. I begin caressing and kissing her breasts, and she reaches down and laughs, amazed that I am hard. She makes a comment about it and what I intend to do with it. I reach for her waist and peel her yoga pants off, then pull down her panties. I spread her legs and begin to eat her out. She is trying to be quiet, but soft moans escape her lips. I press my tongue flat on her pussy and begin to hum while moving my head up and down...she loves that. She begins to pant, and her moan has a louder pitch. Her horniness drives mine, I can't take it anymore. I kneel between her legs, point my cock down, and press the tip of my dick against her lips. I work it in slowly, she is wet, so one deep push and I'm all the way in!
"Mmmmphhh...fuck!" she moans hoarsely, a little louder probably than she meant to be, and that propels me. I begin to drive in to her pussy hard, and the bed begins a rhythmic squeaking noise.
'Sshhh...sshhhh...quiet babe," Lorena says, and I remind her that everyone is asleep. I look towards the door...woops it is open just a crack! 'Did Gina see or hear anything' I think to myself as I get up to close the door. I step behind it (my dick is free swinging in the air, after all!), then open it just a bit to take a peek outside. Holy fuck! I see Gina at the kitchen counter, and her head and neck is cocked in the direction of our door, as if she is straining to hear. She is scrolling on her phone, but to my eyes it looks like she is interested in what is going on in our bedroom! We have an audience! I feel my temples throb and my skin flush, such a turn-on. I decide to turn up the volume just a bit. I slowly and silently close and lock the bedroom door.
I go back to the bed and tell my wife to get in doggy position. I see that sexy ass positioned in front of me and I'm imagining my sister-in-law at that point. I slide into her and let out a LOUD moan, then slap my wife's ass, no doubt meant for my sister-in-law's ears. I've got a rhythm going and I'm moaning loud with my wife going 'sshh sshhh' in between pants when I pull her up and walk her to the wall (yes! the common bedroom wall!) and press her against it. I press my body against hers and kiss her deeply, my rigid dick poking her in the belly. She is slowly stroking my dick as we kiss and I'm fingering her pussy. I tell her to turn around and put her hands on the wall. She does so and sticks her ass out, and I slide in again...mmm fuck she is wet and warm inside! I begin to talk dirty.
"You like this dick, don't you?" I exclaim, followed by her 'sshh sshh...!'.
"You like getting fucked in this position. You want this dick? Tell me you want it harder. Tell me," I say, a bit quieter but still loud enough (hopefully) for my sister-in-law to hear. She responds in pants and moans and 'mm-hmms' and 'ssh ssh'.
"Babe, your pussy feels so good, you're so wet, I'm close to cumming," I pant, and I begin to pump hard, the slap-slap-slap of my lower abdomen smacking against her asscheeks echoing off of the room walls. I feel the cum welling up, my balls tense up, my shaft spasms, and I grunt loudly as I cum. My wife plops back into the bed and gives me a 'what got into you' look. If only she knew! We quickly fall asleep.
The next morning I'm in the kitchen prepping the coffee when my SIL and BIL walk in from their bedroom. I'm trying to discretely observe her for any reaction as we get breakfast ready for everyone, but nothing. I am sure that she heard us! I can feel myself getting hard again, so I have to push those thoughts out of my mind.
Fast forward to the evening. After a long day of activities with the kids, we are unwinding with some cocktails and watching some tv in the den. I took note of the fact that tonight, Gina was wearing some black yoga pants, showing off her sexy legs and that round ass. This is unheard of for her when around others as she is extremely conservative in dress. I kept stealing glances at her as discretely as I could, what can I say I'm a guy lol!! I even noticed her panty lines and that she was wearing a thong. I can see that my wife is buzzed good and keeps nodding off. As we talk though, I notice something different in Gina's eyes...a bit of fire. Intriguing. Danny has a happy buzz going and is lovey-dovey with Gina, cuddling up with her. Gina stands up and grabs Danny's hand and tells him it's time for bed. Meh...it's a bit late, I may as well get to sleep too.
We head to our rooms and I lay down on the bed and begin scrolling mindlessly on my phone. I dozed off, then woke up, then dozed off again...
And heard...
Something.
A slap.
Checked my phone. A little after midnight.
Another slap. Slap slap. My brain was a bit foggy from sleep. I looked over at Lorena. Strained to see her in the dark room. Eyes closed. Asleep...hopefully.
I heard a muffled moan. Could it be?! Was I hearing things?! My throat became dry. I used the glow of my phone to look my wife's way. Yup, asleep. My dick was stiffening as I came to the realization that Gina, my wife's sister was getting fucked! I was fully awake now. I slowly and carefully eased out of bed so as not to awaken Lorena, and then walked over to the wall. I could hear muffled pants, slap-slap-slap. If you've ever been in the situation you know how erotic it is. My dick was now aching and I gave it a squeeze.
What a dilemma. What if my wife woke up and saw me standing against the wall...what would she say? I walked slowly to her, like a cat, to see if she was still asleep. Yep. Walked back to the wall. I could hear some muffled talking, it was hard to make out what they were saying. I looked back one more time at my wife, then pressed my ear against the wall. Then pulled away. I realized it was such a compromising position to be in, but I was so damn horny and my dick was so hard I was not thinking straight. I began to slowly stroke my cock through my sweats.
I placed my ear back on the wall again. It was quiet for the moment. It made me wonder if they heard me stirring and went silent? I strained to hear. Nothing. Then I heard them laugh. My dick started to soften. And then...
(unintelligible)
"mmphh yes..." Gina's voice.
(unintelligible)
Rapid slap-slap-slap-slap-slap
"Aggghhh...!!" Danny's voice.
(unintelligible)
I pictured her riding him, and wondered what her face looked like when she was getting fucked. Did her lips purse together in an 'O', or her eyebrows furrow, eyes closed? Or did she look you straight in the eyes, trying to capture your soul? I imagined her ass going up and down on his dick as the sound of their moans filled my head, and I was stroking faster.
"Give me that cum!" I heard my prim and proper sister-in-law's voice loud and clear this time! So loud, in fact, that I recoiled in shock, afraid that they somehow knew I was listening! I looked my wife's way again, mortified if she was awake. Thank goodness, she was still out...or at least faking it. It was such a turn-on that my prim and proper SIL could be so naughty!
I pulled my dick out and started to stroke faster. My heart was beating rapidly. I could hear the slap-slap-slap even without pressing my ear against the wall. Imagined her in all positions, that round, firm ass getting pummeled and her small tits jiggling with each thrust. I pressed my ear to the wall again.
Danny: "Mmm fuck I..."
(unintelligible)
Gina: loud moan
Danny: "Sshhh!!"
Gina: (unintelligible) "...me"
Rapid slap-slap-slap-slap-slap!!! Then a loud moan by Danny, followed by Gina. I imagined his cum shooting deep in Gina's pussy, and then the cum oozing out as he pulled out of her. I lost it at that point and stroked furiously, cumming in my hand. What a fucking dilemma! I looked at my wife again, fully expecting her to be awake and give me a look of disapproval. Nope, asleep...whew! I headed to the adjoining bathroom to clean up, then crawled into bed and fell asleep.
The next morning I tried to act normal. I wondered if Gina could tell that I heard. I kind of avoided eye contact. But no....things were as they always were. Except...I now had a hot memory that I could play back endlessly!
But enough of that. We're in the mountains. It's late evening and we are in the cabin den. There are two bedrooms downstairs with a common wall between them, and it's an open floor plan where the bedrooms open to the kitchen and den. Upstairs are two more rooms with bunk beds for kids. It is so cozy and warm, with snow lightly falling outside the huge den window. The four of us are on the couches, chatting and planning the next day, the kids are already asleep upstairs. It was a long day and stressful drive to the cabin, and I can see Lorena's eyes slowly closing, and same with Danny, Gina's husband. Danny says he's had enough, says good night, and retreats to their bedroom. Lorena sees him walking and says 'me too'. She calls for me to go to bed, and off she heads to our bedroom. That leaves Gina and I. We make small talk for a bit, and I feel myself getting horny and a bit hard. She is wearing baggy sweats, so nothing exciting visually, but my mind races as I think of all the times she has brushed by me and made contact. My mind wanders...
I'm now fully hard and figure I'd better get to bed. Gina is distracted by her phone, and I take it as an opportunity to get to bed without her noticing my bulge. Walking to the bedroom, I close the door behind me (or so I thought, more on that later!) and see my wife on the bed. She looks so good, her eyes a bit drowsy, but she's awake. I lay next to her and begin kissing her neck. Her eyes open wider and she purrs 'Mmm!'. I reach down and begin to rub her pussy through her yoga pants. She smiles coyly and gently pushes my hand away.
"My sister and her husband are in the next room!" she says in a forced whisper.
"They both went to bed and they're zonked. Both of them looked super-tired, I'm positive they're asleep already," I respond, and I lift up her sweater to reveal her bra. I begin caressing and kissing her breasts, and she reaches down and laughs, amazed that I am hard. She makes a comment about it and what I intend to do with it. I reach for her waist and peel her yoga pants off, then pull down her panties. I spread her legs and begin to eat her out. She is trying to be quiet, but soft moans escape her lips. I press my tongue flat on her pussy and begin to hum while moving my head up and down...she loves that. She begins to pant, and her moan has a louder pitch. Her horniness drives mine, I can't take it anymore. I kneel between her legs, point my cock down, and press the tip of my dick against her lips. I work it in slowly, she is wet, so one deep push and I'm all the way in!
"Mmmmphhh...fuck!" she moans hoarsely, a little louder probably than she meant to be, and that propels me. I begin to drive in to her pussy hard, and the bed begins a rhythmic squeaking noise.
'Sshhh...sshhhh...quiet babe," Lorena says, and I remind her that everyone is asleep. I look towards the door...woops it is open just a crack! 'Did Gina see or hear anything' I think to myself as I get up to close the door. I step behind it (my dick is free swinging in the air, after all!), then open it just a bit to take a peek outside. Holy fuck! I see Gina at the kitchen counter, and her head and neck is cocked in the direction of our door, as if she is straining to hear. She is scrolling on her phone, but to my eyes it looks like she is interested in what is going on in our bedroom! We have an audience! I feel my temples throb and my skin flush, such a turn-on. I decide to turn up the volume just a bit. I slowly and silently close and lock the bedroom door.
I go back to the bed and tell my wife to get in doggy position. I see that sexy ass positioned in front of me and I'm imagining my sister-in-law at that point. I slide into her and let out a LOUD moan, then slap my wife's ass, no doubt meant for my sister-in-law's ears. I've got a rhythm going and I'm moaning loud with my wife going 'sshh sshhh' in between pants when I pull her up and walk her to the wall (yes! the common bedroom wall!) and press her against it. I press my body against hers and kiss her deeply, my rigid dick poking her in the belly. She is slowly stroking my dick as we kiss and I'm fingering her pussy. I tell her to turn around and put her hands on the wall. She does so and sticks her ass out, and I slide in again...mmm fuck she is wet and warm inside! I begin to talk dirty.
"You like this dick, don't you?" I exclaim, followed by her 'sshh sshh...!'.
"You like getting fucked in this position. You want this dick? Tell me you want it harder. Tell me," I say, a bit quieter but still loud enough (hopefully) for my sister-in-law to hear. She responds in pants and moans and 'mm-hmms' and 'ssh ssh'.
"Babe, your pussy feels so good, you're so wet, I'm close to cumming," I pant, and I begin to pump hard, the slap-slap-slap of my lower abdomen smacking against her asscheeks echoing off of the room walls. I feel the cum welling up, my balls tense up, my shaft spasms, and I grunt loudly as I cum. My wife plops back into the bed and gives me a 'what got into you' look. If only she knew! We quickly fall asleep.
The next morning I'm in the kitchen prepping the coffee when my SIL and BIL walk in from their bedroom. I'm trying to discretely observe her for any reaction as we get breakfast ready for everyone, but nothing. I am sure that she heard us! I can feel myself getting hard again, so I have to push those thoughts out of my mind.
Fast forward to the evening. After a long day of activities with the kids, we are unwinding with some cocktails and watching some tv in the den. I took note of the fact that tonight, Gina was wearing some black yoga pants, showing off her sexy legs and that round ass. This is unheard of for her when around others as she is extremely conservative in dress. I kept stealing glances at her as discretely as I could, what can I say I'm a guy lol!! I even noticed her panty lines and that she was wearing a thong. I can see that my wife is buzzed good and keeps nodding off. As we talk though, I notice something different in Gina's eyes...a bit of fire. Intriguing. Danny has a happy buzz going and is lovey-dovey with Gina, cuddling up with her. Gina stands up and grabs Danny's hand and tells him it's time for bed. Meh...it's a bit late, I may as well get to sleep too.
We head to our rooms and I lay down on the bed and begin scrolling mindlessly on my phone. I dozed off, then woke up, then dozed off again...
And heard...
Something.
A slap.
Checked my phone. A little after midnight.
Another slap. Slap slap. My brain was a bit foggy from sleep. I looked over at Lorena. Strained to see her in the dark room. Eyes closed. Asleep...hopefully.
I heard a muffled moan. Could it be?! Was I hearing things?! My throat became dry. I used the glow of my phone to look my wife's way. Yup, asleep. My dick was stiffening as I came to the realization that Gina, my wife's sister was getting fucked! I was fully awake now. I slowly and carefully eased out of bed so as not to awaken Lorena, and then walked over to the wall. I could hear muffled pants, slap-slap-slap. If you've ever been in the situation you know how erotic it is. My dick was now aching and I gave it a squeeze.
What a dilemma. What if my wife woke up and saw me standing against the wall...what would she say? I walked slowly to her, like a cat, to see if she was still asleep. Yep. Walked back to the wall. I could hear some muffled talking, it was hard to make out what they were saying. I looked back one more time at my wife, then pressed my ear against the wall. Then pulled away. I realized it was such a compromising position to be in, but I was so damn horny and my dick was so hard I was not thinking straight. I began to slowly stroke my cock through my sweats.
I placed my ear back on the wall again. It was quiet for the moment. It made me wonder if they heard me stirring and went silent? I strained to hear. Nothing. Then I heard them laugh. My dick started to soften. And then...
(unintelligible)
"mmphh yes..." Gina's voice.
(unintelligible)
Rapid slap-slap-slap-slap-slap
"Aggghhh...!!" Danny's voice.
(unintelligible)
I pictured her riding him, and wondered what her face looked like when she was getting fucked. Did her lips purse together in an 'O', or her eyebrows furrow, eyes closed? Or did she look you straight in the eyes, trying to capture your soul? I imagined her ass going up and down on his dick as the sound of their moans filled my head, and I was stroking faster.
"Give me that cum!" I heard my prim and proper sister-in-law's voice loud and clear this time! So loud, in fact, that I recoiled in shock, afraid that they somehow knew I was listening! I looked my wife's way again, mortified if she was awake. Thank goodness, she was still out...or at least faking it. It was such a turn-on that my prim and proper SIL could be so naughty!
I pulled my dick out and started to stroke faster. My heart was beating rapidly. I could hear the slap-slap-slap even without pressing my ear against the wall. Imagined her in all positions, that round, firm ass getting pummeled and her small tits jiggling with each thrust. I pressed my ear to the wall again.
Danny: "Mmm fuck I..."
(unintelligible)
Gina: loud moan
Danny: "Sshhh!!"
Gina: (unintelligible) "...me"
Rapid slap-slap-slap-slap-slap!!! Then a loud moan by Danny, followed by Gina. I imagined his cum shooting deep in Gina's pussy, and then the cum oozing out as he pulled out of her. I lost it at that point and stroked furiously, cumming in my hand. What a fucking dilemma! I looked at my wife again, fully expecting her to be awake and give me a look of disapproval. Nope, asleep...whew! I headed to the adjoining bathroom to clean up, then crawled into bed and fell asleep.
The next morning I tried to act normal. I wondered if Gina could tell that I heard. I kind of avoided eye contact. But no....things were as they always were. Except...I now had a hot memory that I could play back endlessly!