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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?
Dead Electric Kitchen Queen Of The Night
  10/11/24
I dunno. What if she has a nice ass?
plum big kitty cat
  10/11/24
more detail plz
Rebellious Cuckold Toaster
  10/11/24
...
plum big kitty cat
  10/11/24
It probably depends on how much you hate your bio parent and...
Flirting pea-brained principal's office milk
  10/11/24
do u know what a sister in law is?
Citrine fragrant faggot firefighter hall
  10/11/24
he's watched too much porn
Exhilarant Keepsake Machete
  10/11/24
Objection, nonresponsive
Flirting pea-brained principal's office milk
  10/11/24
...
Poppy hilarious wrinkle
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
Flirting pea-brained principal's office milk
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
wine depressive whorehouse
  10/11/24
sleeping with anyone within your orbit of friends & fami...
Snowy up-to-no-good bawdyhouse
  10/11/24
mostly cr
Dead Electric Kitchen Queen Of The Night
  10/11/24
...
High-end Selfie
  10/12/24
this is exactly why I never sleep with my wife
Honey-headed Brunch Deer Antler
  12/23/25
depends on if your wife is dead or not
Exhilarant Keepsake Machete
  10/11/24
i believe this is colloquially known as "the biden rule...
Snowy up-to-no-good bawdyhouse
  10/11/24
...
Emerald Fighting Base Cumskin
  11/30/25
only if you don't take pictures to share with us
yellow dragon forum
  10/11/24
(martin brodeur)
supple maroon elastic band cuck
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
Federal sanctuary
  10/12/24
This. Plus they are always hugging and kissing you.
ultramarine parlor
  10/12/24
...
yellow dragon forum
  12/23/25
Wtf
Dead Electric Kitchen Queen Of The Night
  10/12/24
This is my life. Constant blue balls.
Federal sanctuary
  10/12/24
...
Rebellious Cuckold Toaster
  11/30/25
Is she a spicy Latina?
brindle legal warrant athletic conference
  10/12/24
...
Emerald Fighting Base Cumskin
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
ultramarine parlor
  10/12/24
180
black vigorous shitlib range
  10/12/24
...
Fiercely-loyal house newt
  10/12/24
twist: the sil was Catherine of aragorn
Soggy psychic quadroon
  10/12/24
If first brother was childless then this is classic Levirate...
Useless stead son of senegal
  10/12/24
...
Fiercely-loyal house newt
  10/12/24
He's literally the closest replacement for the guy. I can't ...
Useless stead son of senegal
  10/12/24
...
Fiercely-loyal house newt
  10/12/24
You're doing it for the purpose of having children, through ...
Useless stead son of senegal
  10/13/24
are we talking about your wife's sister or your brother's wi...
crusty field idiot
  10/12/24
How many times do we have to go over this.
Wild Ebony Feces Twinkling Uncleanness
  10/12/24
...
fuchsia heaven
  10/12/24
...
Emerald Fighting Base Cumskin
  11/30/25
...
fuchsia heaven
  12/23/25
...
Poppy hilarious wrinkle
  12/23/25
...
appetizing zippy doctorate degenerate
  12/23/25
yes
claret maniacal national mother
  10/12/24
voice of reason as always cbtp
Dead Electric Kitchen Queen Of The Night
  10/12/24
not as deranged as brother-in-law
pink legend
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
blue beady-eyed lay codepig
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: Dead Electric Kitchen Queen Of The Night

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

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



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: plum big kitty cat

I dunno. What if she has a nice ass?

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



Reply Favorite

Date: October 11th, 2024 4:35 PM
Author: Rebellious Cuckold Toaster

more detail plz

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



Reply Favorite

Date: October 11th, 2024 4:37 PM
Author: plum big kitty cat



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



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: Flirting pea-brained principal's office milk

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=2/en-en/#48188001)



Reply Favorite

Date: October 11th, 2024 4:41 PM
Author: Citrine fragrant faggot firefighter hall

do u know what a sister in law is?

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Exhilarant Keepsake Machete

he's watched too much porn

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



Reply Favorite

Date: October 11th, 2024 7:51 PM
Author: Flirting pea-brained principal's office milk

Objection, nonresponsive

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



Reply Favorite

Date: December 23rd, 2025 2:44 AM
Author: Poppy hilarious wrinkle



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



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: Flirting pea-brained principal's office milk

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=2/en-en/#48188616)



Reply Favorite

Date: October 11th, 2024 8:22 PM
Author: wine depressive whorehouse

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=2/en-en/#48188745)



Reply Favorite

Date: October 11th, 2024 4:42 PM
Author: Snowy up-to-no-good bawdyhouse

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

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



Reply Favorite

Date: October 11th, 2024 4:50 PM
Author: Dead Electric Kitchen Queen Of The Night

mostly cr

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



Reply Favorite

Date: October 12th, 2024 3:21 PM
Author: High-end Selfie



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



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: Honey-headed Brunch Deer Antler

this is exactly why I never sleep with my wife

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Exhilarant Keepsake Machete

depends on if your wife is dead or not

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Snowy up-to-no-good bawdyhouse

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

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: Emerald Fighting Base Cumskin



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



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: yellow dragon forum

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

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



Reply Favorite

Date: October 11th, 2024 8:14 PM
Author: supple maroon elastic band cuck

(martin brodeur)

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



Reply Favorite

Date: October 12th, 2024 10:56 AM
Author: Federal sanctuary

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=2/en-en/#48189844)



Reply Favorite

Date: October 12th, 2024 11:38 AM
Author: ultramarine parlor

This. Plus they are always hugging and kissing you.

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



Reply Favorite

Date: December 23rd, 2025 6:52 AM
Author: yellow dragon forum



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



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: Dead Electric Kitchen Queen Of The Night

Wtf

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



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: Federal sanctuary

This is my life. Constant blue balls.

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



Reply Favorite

Date: November 30th, 2025 4:44 PM
Author: Rebellious Cuckold Toaster



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



Reply Favorite

Date: October 12th, 2024 11:41 AM
Author: brindle legal warrant athletic conference

Is she a spicy Latina?

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: Emerald Fighting Base Cumskin



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



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: ultramarine parlor

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=2/en-en/#48189964)



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: black vigorous shitlib range

180

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



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: Fiercely-loyal house newt



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



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: Soggy psychic quadroon

twist: the sil was Catherine of aragorn

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



Reply Favorite

Date: October 12th, 2024 3:20 PM
Author: Useless stead son of senegal

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=2/en-en/#48190659)



Reply Favorite

Date: October 12th, 2024 3:25 PM
Author: Fiercely-loyal house newt



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



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: Useless stead son of senegal

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=2/en-en/#48190707)



Reply Favorite

Date: October 12th, 2024 3:38 PM
Author: Fiercely-loyal house newt



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



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: Useless stead son of senegal

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=2/en-en/#48191875)



Reply Favorite

Date: October 12th, 2024 11:50 AM
Author: crusty field idiot

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

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



Reply Favorite

Date: October 12th, 2024 11:52 AM
Author: Wild Ebony Feces Twinkling Uncleanness

How many times do we have to go over this.

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



Reply Favorite

Date: October 12th, 2024 4:01 PM
Author: fuchsia heaven



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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: Emerald Fighting Base Cumskin



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



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: fuchsia heaven



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



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: Poppy hilarious wrinkle



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



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: appetizing zippy doctorate degenerate



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



Reply Favorite

Date: October 12th, 2024 11:51 AM
Author: claret maniacal national mother

yes

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



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: Dead Electric Kitchen Queen Of The Night

voice of reason as always cbtp

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



Reply Favorite

Date: October 12th, 2024 11:57 AM
Author: pink legend

not as deranged as brother-in-law

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



Reply Favorite

Date: December 23rd, 2025 7:03 AM
Author: blue beady-eyed lay codepig

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=2/en-en/#49533184)