Mil & Sil

ComatoastTX

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Has anyone flashed their mother-in-law or sister-in-law? Or had them "accidentally" walk in on them?

My MIL has been staying with us for a few months now and my SIL visits every now and then. The SIL was here last weekend and I chose to wear my favorite "comfy" shorts while she was here. I wear them all the time when my MIL is around. My wife hasn't said anything to me about wearing them.

Here's a pic of them on me.

https://www.***********/s/bktipgq747fabge/20210321_083535.jpg?dl=0
https://www.***********/s/inmkzbw2p3f7tjh/20210321_083535_resized.jpg?dl=1
 
Last edited:
Has anyone flashed their mother-in-law or sister-in-law? Or had them "accidentally" walk in on them?

My MIL has been staying with us for a few months now and my SIL visits every now and then. The SIL was here last weekend and I chose to wear my favorite "comfy" shorts while she was here. I wear them all the time when my MIL is around. My wife hasn't said anything to me about wearing them.

Here's a pic of them on me.

https://www.***********/s/bktipgq747fabge/20210321_083535.jpg?dl=0
https://www.***********/s/inmkzbw2p3f7tjh/20210321_083535_resized.jpg?dl=1

Has either your MIL or SIL made any comment to you? It must surely
get their attention. Maybe they are afraid if they say something, you
won't continue wearing them and then they won't get to see what's in
your shorts all the time.
 
Has anyone flashed their mother-in-law or sister-in-law? Or had them "accidentally" walk in on them?

My MIL has been staying with us for a few months now and my SIL visits every now and then. The SIL was here last weekend and I chose to wear my favorite "comfy" shorts while she was here. I wear them all the time when my MIL is around. My wife hasn't said anything to me about wearing them.

Here's a pic of them on me.

https://www.***********/s/bktipgq747fabge/20210321_083535.jpg?dl=0
https://www.***********/s/inmkzbw2p3f7tjh/20210321_083535_resized.jpg?dl=1
I’ve flashed my SIL plenty of times. We have a very flirty relationship and have had the types of conversations that my wife and her husband would def not approve of but so far she hasn’t been willing to take it to the next level. Last Christmas Eve at a party we were very drunk and outside smoking a cigarette together and I said to her something like “I feel like me and you have a “little thing”, right. She agrees but then said we shouldn’t take it past that. Totally popped my bubble but I haven’t stopped trying lol.

Btw I do the same thing you do with the shorts and I catch her peeping ALL the time
 
Has either your MIL or SIL made any comment to you? It must surely
get their attention. Maybe they are afraid if they say something, you
won't continue wearing them and then they won't get to see what's in
your shorts all the time.

They haven't said anything to me and maybe your right. They'd rather me keep wearing them and don't want to spoil it. I do act like I'm unaware that my dick is visible to them.
 
With my mil it was me walking in on her in the shower by accident thinking my wife was home early; the second time was on vacation and I didn’t realise she wasn’t ready yet. I’ve seen accidental nip slips or flashes during our swims together. With my sister in law we had a very badly handled affair for over two years. We went from flirting to intense flirting, kissing and groping to fucking like horny teenagers. Unfortunately I didn’t realise she was crazy at first and it ended badly. We all get along now though
 
My wife has two sisters, one older and one younger and quite a while back my wife told me that her and her older sister experimented sexually when they lived together in their younger days. She confessed that they had occasionally revisited this over the years including while we were married. This was quite a surprise and this led to us getting together with her sister and husband for a 4some at first and we now have agreement we can play amongst ourselves.

When me and my wife got married we lived with her mother and younger sister, while all the time living there I did catch my SIL playing with herself and my MIL entertaining different guys on a couple of occasions. My wife has mentioned that my MIL told her how she would love to have a night with me, this was said after she'd had a few drinks. I asked my wife if I had a chance and she didn't discourage me from trying.
 
My wife has two sisters, one older and one younger and quite a while back my wife told me that her and her older sister experimented sexually when they lived together in their younger days. She confessed that they had occasionally revisited this over the years including while we were married. This was quite a surprise and this led to us getting together with her sister and husband for a 4some at first and we now have agreement we can play amongst ourselves.

When me and my wife got married we lived with her mother and younger sister, while all the time living there I did catch my SIL playing with herself and my MIL entertaining different guys on a couple of occasions. My wife has mentioned that my MIL told her how she would love to have a night with me, this was said after she'd had a few drinks. I asked my wife if I had a chance and she didn't discourage me from trying.

You are one lucky man.
 
Nothing on my end with flashing but my ex SIL flashed me.

We were on vacation. My wife and her sister and her sisters husband.

We were up late, playing games, we talked before about how dark brown her asshole was. She thought it abnormal.

I asked how dark. Like the color of a cardboard box? Or like a Hershey bar? Or dark chocolate?

She got on the table on all fours, pulled her shorts down, panties to the side and showed her asshole and pussy. Her husband didn’t react fast enough. I saw all.

It wasn’t that brown. Not that dark. I expected darker.
 
You are one lucky man.

I never really thought about MIL too much, the couple of times I caught her was interesting as she was really going for it with the guy she was with. I have not seen a lot of her because of lockdown. I did go around the other day on my way to work, it was morning and she had pj's on and the bottoms were like shorts. I was sat opposite her and I tried to catch a glimpse between her legs but couldn't see anything.
 
I went around to my SIL last week to drop something off that I had picked up in town for her. Previously my brother in law had been to visit my wife and fucked her so I was hoping it was my turn now. I was right as well and I was invited upstairs and we had a great time, it did feel a bit different as my wife or brother in law wasn't present on this occasion.
 
My MIL has seen me naked several times. Each time, she stares at my cock. I know there is sexual tension there, but we have not taken the next step.
 
This thread brings back some erotic memories. My wife and I married young. Not long after we were married her little sister, who is about three years younger, would nude sunbath with us at her parents house on the lake. My wife got frisky one day and started playing with my cock pretending it could talk through the pee hole.

She invited her sister to make my cock talk, which she cheerfully did. With the two of them laughing, her sister got a little over exuberant and I jumped. Of course little sister apologized and leaned down to kiss it and make it feel better. She then took the head in her mouth and swirled her tongue around it a little and sat back up.

A little later I had to run out to the car for something, so I slipped on my shorts. When I got back, the two naked nymphs had moved onto a day bed on the deck and I joined them. My wife was sitting besides me and her sister was sitting on the foot of the bed. I placed my barefoot on her pubic mound and started pressing. The imp giggled and started pressing back eventually using her hand to pull my foot in tighter. I could feel her warm moist labia pressed into my foot. My wife leaned over and started teasing my cock through my shorts and softly whispered, "Do her, she wants it." Unfortunately, her brother came in the front door yelling, "Hello!"

That was the closest we ever came to going all the way. However over the next ten years or so we did continue nude sunbathing and teasing each other until she got married.
 
I went around to my SIL last week to drop something off that I had picked up in town for her. Previously my brother in law had been to visit my wife and fucked her so I was hoping it was my turn now. I was right as well and I was invited upstairs and we had a great time, it did feel a bit different as my wife or brother in law wasn't present on this occasion.

We have this type of arrangement with my wife's sister, she moved in with us at the start of the last lockdown and things progressed to the point where she joined us when having sex, firstly it was watching then she would play while watching then the step where she joined us. It even ended up with her having intimacy with my wife. She has moved back to her flat now but we have agreed to carry on with it when we can.
 
I went around again to see my MIL tonight, I was hoping that she would have her short pjama's on. She did and I made sure I sat opposite her so I could see if I could get a peek, the one's she had on seemed a bit shorter and I could see right to the top of the inside of her legs because the way she was sat. We had a nice chat and I told her I would pop around tomorrow night after work, she is now living on her own so it seemed a good excuse to call in to see her.
 
I went around again to see my MIL tonight, I was hoping that she would have her short pjama's on. She did and I made sure I sat opposite her so I could see if I could get a peek, the one's she had on seemed a bit shorter and I could see right to the top of the inside of her legs because the way she was sat. We had a nice chat and I told her I would pop around tomorrow night after work, she is now living on her own so it seemed a good excuse to call in to see her.

Do you think your wife has said something to her or is she completely oblivious to what you are trying to do?
 
This thread brings back some erotic memories. My wife and I married young. Not long after we were married her little sister, who is about three years younger, would nude sunbath with us at her parents house on the lake. My wife got frisky one day and started playing with my cock pretending it could talk through the pee hole.

She invited her sister to make my cock talk, which she cheerfully did. With the two of them laughing, her sister got a little over exuberant and I jumped. Of course little sister apologized and leaned down to kiss it and make it feel better. She then took the head in her mouth and swirled her tongue around it a little and sat back up.

A little later I had to run out to the car for something, so I slipped on my shorts. When I got back, the two naked nymphs had moved onto a day bed on the deck and I joined them. My wife was sitting besides me and her sister was sitting on the foot of the bed. I placed my barefoot on her pubic mound and started pressing. The imp giggled and started pressing back eventually using her hand to pull my foot in tighter. I could feel her warm moist labia pressed into my foot. My wife leaned over and started teasing my cock through my shorts and softly whispered, "Do her, she wants it." Unfortunately, her brother came in the front door yelling, "Hello!"

That was the closest we ever came to going all the way. However over the next ten years or so we did continue nude sunbathing and teasing each other until she got married.

That is a great story!
 
That is a great story!

Thanks ComatoastTX. My wife's younger sister was a hot lil number, five feet five inches, slender with small breasts, very taut flat abs (from horse riding) and a tight butt. At the time, she had almost a white blonde hair which came down to the backs of her knees and neatly trimmed blond pubes. Neither she nor my wife had a sense of modesty and were happiest when they were running around naked.

When we visited, this little imp would often come, climb up on the bed with us wearing nothing but a pair of tiny bikini panties and visit. Since my wife and I had an open marriage and she knew her sister had a major crush on me, she had given her sister permission to have sex with me or for us to have a threesome. We knew, from her stories, she was extremely promiscuous, but she was afraid it might cause a problem for the family if anyone found out. So, flirting, teasing and intimate caresses was as far as it got.
 
I went round to see my MIL on my way home from work tonight, she had her pj's on and I kept looking at her legs. She made me a coffee and she put the cup down on the low table in front of me and her pjama top had an extra button open and I just got a glimpse of her hanging breasts. I think I will call around tomorrow night as well.
 
Both

I am very fortunate that I have had the pleasure of experiences with both of them. The ML loves to show her ample tight cleavage in the morning when she is wearing her night gown. Her tits are larger and heavier than wife’s tits.
 
Has anyone flashed their mother-in-law or sister-in-law? Or had them "accidentally" walk in on them?

My MIL has been staying with us for a few months now and my SIL visits every now and then. The SIL was here last weekend and I chose to wear my favorite "comfy" shorts while she was here. I wear them all the time when my MIL is around. My wife hasn't said anything to me about wearing them.

Here's a pic of them on me.

https://www.***********/s/bktipgq747fabge/20210321_083535.jpg?dl=0
https://www.***********/s/inmkzbw2p3f7tjh/20210321_083535_resized.jpg?dl=1

Ooooooooh I LOVE the idea of this happening!!! I wear some VERY thin shorts and when I bend over and the light is just right, you can see ALL of my goodies! The first time I realized this was when my DIL got an eye full and mentioned it.
 
Ooooooooh I LOVE the idea of this happening!!! I wear some VERY thin shorts and when I bend over and the light is just right, you can see ALL of my goodies! The first time I realized this was when my DIL got an eye full and mentioned it.
Mmmm, Oh YES! he would see this faggot wannabe looking at it.
 
My kind of conversation!

I had a very long affair with my ex wife's sister. She was one year older than me, two years older than my wife. It all started in our early twenties with her flashing me in loose fitting shorts then skirts. That progressed to down blouses. We all lived in a big old house together, me and my wife, the sister and her husband. SIL and I became very close, like brother and sister. Because of our work schedules we had a lot of time alone together in that old house. Over the course of a year, we went from flashing, to flirting, to touching, to making out. For a while all we did was perform oral on each other and masturbate together, but eventually the inevitable happened and we started having sex. It lasted well over a decade until her sister and I divorced.

I have many long stories written up about her that I like to share. Shoot me a PM if you are interested! I love talking about her!

She was 5'3", 115-120 pounds, fit and petite with a nice ass and huge, perky tits. Blonde upstairs and down. Beautiful, wonderful woman that gave me many years of pleasure and excitement.
 
My ex MIL was a total flirt, my ex wife used to say that her mother had three husbands of her own and loads of other people's. She always made it clear that she loved sex, shame her daughter didn't inherit that gene, and we used to enjoy a flirty relationship. She often used to make sure that I saw glimpses, but we discussed it when we nearly took it to the next step and agreed that it wasn't a good idea.

One of my ex SIL was also a flirt, I've talked about her on here before. Bursting in on me on the shower, flashing me etc, saying in front of my wife that I'd married the wrong sister and much more. She several times offered me a blowjob for a lift. The thing is, I knew that if I did anything she would rush to tell my wife - it just wasn't worth going there.

After my wife and split up she used to call and text me offering sex, again I knew that she would tell my ex-wife which would make the divorce so much worse.

I must admit to sometimes thinking "I wonder how good they were?".
 
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