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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?
Curious internal respiration
  10/11/24
I dunno. What if she has a nice ass?
Salmon twinkling uncleanness
  10/11/24
more detail plz
Bright forum
  10/11/24
...
Salmon twinkling uncleanness
  10/11/24
It probably depends on how much you hate your bio parent and...
marvelous stag film coldplay fan
  10/11/24
do u know what a sister in law is?
flesh background story home
  10/11/24
he's watched too much porn
irradiated violet native
  10/11/24
Objection, nonresponsive
marvelous stag film coldplay fan
  10/11/24
...
slippery azure affirmative action masturbator
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
marvelous stag film coldplay fan
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
frozen brunch friendly grandma
  10/11/24
sleeping with anyone within your orbit of friends & fami...
180 scarlet sandwich
  10/11/24
mostly cr
Curious internal respiration
  10/11/24
...
lime stead
  10/12/24
this is exactly why I never sleep with my wife
Tantric olive mad cow disease
  12/23/25
depends on if your wife is dead or not
irradiated violet native
  10/11/24
i believe this is colloquially known as "the biden rule...
180 scarlet sandwich
  10/11/24
...
costumed black institution jewess
  11/30/25
only if you don't take pictures to share with us
Crystalline Electric Furnace Hell
  10/11/24
(martin brodeur)
Nighttime pozpig
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
excitant church building legal warrant
  10/12/24
This. Plus they are always hugging and kissing you.
Motley university
  10/12/24
...
Crystalline Electric Furnace Hell
  12/23/25
Wtf
Curious internal respiration
  10/12/24
This is my life. Constant blue balls.
excitant church building legal warrant
  10/12/24
...
Bright forum
  11/30/25
i'm married to the younger hotter sister, and the temptation...
...,,..;...,,..,..,...,,,;..,
  06/03/26
Is she a spicy Latina?
Light shivering striped hyena
  10/12/24
...
costumed black institution jewess
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
Motley university
  10/12/24
180
spectacular peach dingle berry voyeur
  10/12/24
...
avocado space
  10/12/24
twist: the sil was Catherine of aragorn
Demanding Legend
  10/12/24
If first brother was childless then this is classic Levirate...
effete dragon
  10/12/24
...
avocado space
  10/12/24
He's literally the closest replacement for the guy. I can't ...
effete dragon
  10/12/24
...
avocado space
  10/12/24
You're doing it for the purpose of having children, through ...
effete dragon
  10/13/24
are we talking about your wife's sister or your brother's wi...
dull multi-colored crackhouse queen of the night
  10/12/24
How many times do we have to go over this.
Razzle swollen deer antler gas station
  10/12/24
...
Thriller Business Firm
  10/12/24
...
costumed black institution jewess
  11/30/25
...
Thriller Business Firm
  12/23/25
...
slippery azure affirmative action masturbator
  12/23/25
...
odious area foreskin
  12/23/25
...
gedood persoon
  06/03/26
...
Emilio Estevez circa 2032
  06/03/26
...
Mailer Daemon
  06/03/26
...
Emilio Estevez circa 2032
  06/03/26
yes
wine bull headed genital piercing
  10/12/24
voice of reason as always cbtp
Curious internal respiration
  10/12/24
not as deranged as brother-in-law
navy sickened kitchen
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
at-the-ready ivory headpube
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: Curious internal respiration

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

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



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: Salmon twinkling uncleanness

I dunno. What if she has a nice ass?

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



Reply Favorite

Date: October 11th, 2024 4:35 PM
Author: Bright forum

more detail plz

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



Reply Favorite

Date: October 11th, 2024 4:37 PM
Author: Salmon twinkling uncleanness



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



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: marvelous stag film coldplay fan

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]#48188001)



Reply Favorite

Date: October 11th, 2024 4:41 PM
Author: flesh background story home

do u know what a sister in law is?

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: irradiated violet native

he's watched too much porn

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



Reply Favorite

Date: October 11th, 2024 7:51 PM
Author: marvelous stag film coldplay fan

Objection, nonresponsive

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



Reply Favorite

Date: December 23rd, 2025 2:44 AM
Author: slippery azure affirmative action masturbator



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



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: marvelous stag film coldplay fan

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]#48188616)



Reply Favorite

Date: October 11th, 2024 8:22 PM
Author: frozen brunch friendly grandma

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]#48188745)



Reply Favorite

Date: October 11th, 2024 4:42 PM
Author: 180 scarlet sandwich

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]#48188009)



Reply Favorite

Date: October 11th, 2024 4:50 PM
Author: Curious internal respiration

mostly cr

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



Reply Favorite

Date: October 12th, 2024 3:21 PM
Author: lime stead



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



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: Tantric olive mad cow disease

this is exactly why I never sleep with my wife

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: irradiated violet native

depends on if your wife is dead or not

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: 180 scarlet sandwich

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

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: costumed black institution jewess



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



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: Crystalline Electric Furnace Hell

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

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



Reply Favorite

Date: October 11th, 2024 8:14 PM
Author: Nighttime pozpig

(martin brodeur)

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



Reply Favorite

Date: October 12th, 2024 10:56 AM
Author: excitant church building legal warrant

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]#48189844)



Reply Favorite

Date: October 12th, 2024 11:38 AM
Author: Motley university

This. Plus they are always hugging and kissing you.

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



Reply Favorite

Date: December 23rd, 2025 6:52 AM
Author: Crystalline Electric Furnace Hell



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



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: Curious internal respiration

Wtf

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



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: excitant church building legal warrant

This is my life. Constant blue balls.

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



Reply Favorite

Date: November 30th, 2025 4:44 PM
Author: Bright forum



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



Reply Favorite

Date: June 3rd, 2026 4:32 PM
Author: ...,,..;...,,..,..,...,,,;..,


i'm married to the younger hotter sister, and the temptation is still 100% there for the older less-hot SIL for exactly the same reasons you mentioned.

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2]#49913429)



Reply Favorite

Date: October 12th, 2024 11:41 AM
Author: Light shivering striped hyena

Is she a spicy Latina?

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: costumed black institution jewess



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



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: Motley university

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]#48189964)



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: spectacular peach dingle berry voyeur

180

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



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: avocado space



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



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: Demanding Legend

twist: the sil was Catherine of aragorn

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



Reply Favorite

Date: October 12th, 2024 3:20 PM
Author: effete dragon

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]#48190659)



Reply Favorite

Date: October 12th, 2024 3:25 PM
Author: avocado space



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



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: effete dragon

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]#48190707)



Reply Favorite

Date: October 12th, 2024 3:38 PM
Author: avocado space



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



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: effete dragon

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]#48191875)



Reply Favorite

Date: October 12th, 2024 11:50 AM
Author: dull multi-colored crackhouse queen of the night

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]#48189984)



Reply Favorite

Date: October 12th, 2024 11:52 AM
Author: Razzle swollen deer antler gas station

How many times do we have to go over this.

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



Reply Favorite

Date: October 12th, 2024 4:01 PM
Author: Thriller Business Firm



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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: costumed black institution jewess



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



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: Thriller Business Firm



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



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: slippery azure affirmative action masturbator



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



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: odious area foreskin



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



Reply Favorite

Date: June 3rd, 2026 3:03 PM
Author: gedood persoon



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2]#49913228)



Reply Favorite

Date: June 3rd, 2026 3:08 PM
Author: Emilio Estevez circa 2032



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2]#49913235)



Reply Favorite

Date: June 3rd, 2026 3:20 PM
Author: Mailer Daemon



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2]#49913261)



Reply Favorite

Date: June 3rd, 2026 4:24 PM
Author: Emilio Estevez circa 2032



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2]#49913390)



Reply Favorite

Date: October 12th, 2024 11:51 AM
Author: wine bull headed genital piercing

yes

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



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: Curious internal respiration

voice of reason as always cbtp

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



Reply Favorite

Date: October 12th, 2024 11:57 AM
Author: navy sickened kitchen

not as deranged as brother-in-law

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



Reply Favorite

Date: December 23rd, 2025 7:03 AM
Author: at-the-ready ivory headpube

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]#49533184)