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Having sex with your sister in law is completely deranged, right?

Nobody moral would do this, right? These are just jokes?
magical police squad
  10/11/24
I dunno. What if she has a nice ass?
Glittery shimmering chapel
  10/11/24
more detail plz
Diverse shivering rehab cuck
  10/11/24
...
Glittery shimmering chapel
  10/11/24
It probably depends on how much you hate your bio parent and...
Soggy embarrassed to the bone lodge
  10/11/24
do u know what a sister in law is?
blathering area
  10/11/24
he's watched too much porn
charcoal nursing home ape
  10/11/24
Objection, nonresponsive
Soggy embarrassed to the bone lodge
  10/11/24
...
geriatric citrine casino
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
Soggy embarrassed to the bone lodge
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
lavender stirring parlour
  10/11/24
sleeping with anyone within your orbit of friends & fami...
Black international law enforcement agency
  10/11/24
mostly cr
magical police squad
  10/11/24
...
Abnormal french weed whacker
  10/12/24
this is exactly why I never sleep with my wife
aphrodisiac piazza famous landscape painting
  12/23/25
depends on if your wife is dead or not
charcoal nursing home ape
  10/11/24
i believe this is colloquially known as "the biden rule...
Black international law enforcement agency
  10/11/24
...
drab bat shit crazy sanctuary
  11/30/25
only if you don't take pictures to share with us
Spruce Comical Box Office Associate
  10/11/24
(martin brodeur)
Contagious Flushed Theater Stage Mexican
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
Chartreuse Bonkers Digit Ratio
  10/12/24
This. Plus they are always hugging and kissing you.
Red low-t station kitty cat
  10/12/24
...
Spruce Comical Box Office Associate
  12/23/25
Wtf
magical police squad
  10/12/24
This is my life. Constant blue balls.
Chartreuse Bonkers Digit Ratio
  10/12/24
...
Diverse shivering rehab cuck
  11/30/25
Is she a spicy Latina?
Cruel-hearted University Black Woman
  10/12/24
...
drab bat shit crazy sanctuary
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
Red low-t station kitty cat
  10/12/24
180
Vibrant chrome dingle berry hissy fit
  10/12/24
...
dark stage
  10/12/24
twist: the sil was Catherine of aragorn
swashbuckling impertinent ladyboy heaven
  10/12/24
If first brother was childless then this is classic Levirate...
boyish national
  10/12/24
...
dark stage
  10/12/24
He's literally the closest replacement for the guy. I can't ...
boyish national
  10/12/24
...
dark stage
  10/12/24
You're doing it for the purpose of having children, through ...
boyish national
  10/13/24
are we talking about your wife's sister or your brother's wi...
Aromatic metal jew stain
  10/12/24
How many times do we have to go over this.
Marvelous bistre dragon
  10/12/24
...
Bespoke hell
  10/12/24
...
drab bat shit crazy sanctuary
  11/30/25
...
Bespoke hell
  12/23/25
...
geriatric citrine casino
  12/23/25
...
brilliant institution mental disorder
  12/23/25
yes
Balding Faggotry
  10/12/24
voice of reason as always cbtp
magical police squad
  10/12/24
not as deranged as brother-in-law
Out-of-control Charismatic Background Story Boltzmann
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
autistic school giraffe
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: magical police squad

Nobody moral would do this, right? These are just jokes?

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48187983)



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: Glittery shimmering chapel

I dunno. What if she has a nice ass?

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48187985)



Reply Favorite

Date: October 11th, 2024 4:35 PM
Author: Diverse shivering rehab cuck

more detail plz

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48187988)



Reply Favorite

Date: October 11th, 2024 4:37 PM
Author: Glittery shimmering chapel



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48187993)



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: Soggy embarrassed to the bone lodge

It probably depends on how much you hate your bio parent and stepparent. If eg I was a Chadly 16 year old and a drunk, verbally abusive stepdad moved into my house with me and my mom, and he brought along his hot 15 year old daughter, I could see how fucking the shit out of his 15 year old daughter might be beneficial for me and my mom.

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188001)



Reply Favorite

Date: October 11th, 2024 4:41 PM
Author: blathering area

do u know what a sister in law is?

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188004)



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: charcoal nursing home ape

he's watched too much porn

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188017)



Reply Favorite

Date: October 11th, 2024 7:51 PM
Author: Soggy embarrassed to the bone lodge

Objection, nonresponsive

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188617)



Reply Favorite

Date: December 23rd, 2025 2:44 AM
Author: geriatric citrine casino



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#49533041)



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: Soggy embarrassed to the bone lodge

I do but I prefer fantasizing about my non-existent step sister. I originally meant to go back to the beginning of this and add some intro that set up the pivot, but I forgot to do that.

Given the XO stipulation that we’re limiting the discussion to wife’s sister and brother’s wife is obviously off limits, it would require a wife that is truly evil and awful to justify it, and no kids can be involved for anyone. That said, it would be literally the greatest spite sex ever, if justified, and also a real life-threatening peak experience since by definition any wife awful enough to deserve to get cucked by her own sister would be fully capable of murdering both of you. So in that 1/100k scenario where you made the mistake of marrying the literal devil it’s not only justified it’s incredibly hot.

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188616)



Reply Favorite

Date: October 11th, 2024 8:22 PM
Author: lavender stirring parlour

Not sure if this analysis is on point. The less it's justified the hotter it is imo

Scandal is the very foundation of the SIL Fetish

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188745)



Reply Favorite

Date: October 11th, 2024 4:42 PM
Author: Black international law enforcement agency

sleeping with anyone within your orbit of friends & family is insane and doomed

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188009)



Reply Favorite

Date: October 11th, 2024 4:50 PM
Author: magical police squad

mostly cr

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188040)



Reply Favorite

Date: October 12th, 2024 3:21 PM
Author: Abnormal french weed whacker



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190661)



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: aphrodisiac piazza famous landscape painting

this is exactly why I never sleep with my wife

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#49533050)



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: charcoal nursing home ape

depends on if your wife is dead or not

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188014)



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Black international law enforcement agency

i believe this is colloquially known as "the biden rule"

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188018)



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: drab bat shit crazy sanctuary



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#49472648)



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: Spruce Comical Box Office Associate

only if you don't take pictures to share with us

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188026)



Reply Favorite

Date: October 11th, 2024 8:14 PM
Author: Contagious Flushed Theater Stage Mexican

(martin brodeur)

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48188717)



Reply Favorite

Date: October 12th, 2024 10:56 AM
Author: Chartreuse Bonkers Digit Ratio

Anyone who doesn't at least understand the temptation doesn't have a hotter young SiL.

It's a combination of many factors. She's a hotter, younger version of your wife (who you were already naturally attracted to--they share the same genes).

She's often proximate to you including during revealing, semi-intimate moments--e.g., lounging around in her robe, changing adjacent to go to the beach, at the pool in her bikini, at a cabin getting dressed in the morning, casually walking into your room while you're getting dressed, asking you to pass her a towel, etc.

The SiL has a natural temptation and desire--this can be conscious or subconscious--to fuck with her sister like all good classic fucked up female relationships and one obvious way to do it is to tempt the sister's husband.

It's a toxic stew that results in you constantly having a throbbing cock around your SiL's pendulous breasts and warm luscious hairy honeypit that she semi-regularly flashes you with even as your rational mind tells you this would be the worst decision you ever made because inevitably it will come back to haunt you and blow up your life.

Thank

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48189844)



Reply Favorite

Date: October 12th, 2024 11:38 AM
Author: Red low-t station kitty cat

This. Plus they are always hugging and kissing you.

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48189951)



Reply Favorite

Date: December 23rd, 2025 6:52 AM
Author: Spruce Comical Box Office Associate



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#49533178)



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: magical police squad

Wtf

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190745)



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: Chartreuse Bonkers Digit Ratio

This is my life. Constant blue balls.

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190953)



Reply Favorite

Date: November 30th, 2025 4:44 PM
Author: Diverse shivering rehab cuck



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#49472629)



Reply Favorite

Date: October 12th, 2024 11:41 AM
Author: Cruel-hearted University Black Woman

Is she a spicy Latina?

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48189956)



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: drab bat shit crazy sanctuary



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#49472649)



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: Red low-t station kitty cat

Youngest SiL is trim, has a 180 ass and is always kissing me on the lips. Hard not to think about it.

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48189964)



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: Vibrant chrome dingle berry hissy fit

180

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190744)



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: dark stage



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48189979)



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: swashbuckling impertinent ladyboy heaven

twist: the sil was Catherine of aragorn

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190647)



Reply Favorite

Date: October 12th, 2024 3:20 PM
Author: boyish national

If first brother was childless then this is classic Levirate marriage out of Deuteronomy

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190659)



Reply Favorite

Date: October 12th, 2024 3:25 PM
Author: dark stage



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190672)



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: boyish national

He's literally the closest replacement for the guy. I can't think of anything more natural.

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190707)



Reply Favorite

Date: October 12th, 2024 3:38 PM
Author: dark stage



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190723)



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: boyish national

You're doing it for the purpose of having children, through whom your brother lives on. Nothing could be a bigger solid for the guy.

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48191875)



Reply Favorite

Date: October 12th, 2024 11:50 AM
Author: Aromatic metal jew stain

are we talking about your wife's sister or your brother's wife?

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48189984)



Reply Favorite

Date: October 12th, 2024 11:52 AM
Author: Marvelous bistre dragon

How many times do we have to go over this.

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48189992)



Reply Favorite

Date: October 12th, 2024 4:01 PM
Author: Bespoke hell



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190799)



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: drab bat shit crazy sanctuary



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#49472653)



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: Bespoke hell



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#49533037)



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: geriatric citrine casino



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#49533043)



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: brilliant institution mental disorder



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#49533170)



Reply Favorite

Date: October 12th, 2024 11:51 AM
Author: Balding Faggotry

yes

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48189990)



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: magical police squad

voice of reason as always cbtp

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190802)



Reply Favorite

Date: October 12th, 2024 11:57 AM
Author: Out-of-control Charismatic Background Story Boltzmann

not as deranged as brother-in-law

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#48190004)



Reply Favorite

Date: December 23rd, 2025 7:03 AM
Author: autistic school giraffe

Wife’s sister or your bros wife = deranged

wife’s bros wife = still deranged but less so

Sister of BIL or SIL not directly related to your wife = fair game except for the whole infidelity thing

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2в#49533184)