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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?
provocative property
  10/11/24
I dunno. What if she has a nice ass?
wonderful library scourge upon the earth
  10/11/24
more detail plz
exhilarant locus
  10/11/24
...
wonderful library scourge upon the earth
  10/11/24
It probably depends on how much you hate your bio parent and...
slimy theatre idea he suggested
  10/11/24
do u know what a sister in law is?
Beady-eyed giraffe psychic
  10/11/24
he's watched too much porn
Arousing Skinny Woman Partner
  10/11/24
Objection, nonresponsive
slimy theatre idea he suggested
  10/11/24
...
Ebony lettuce
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
slimy theatre idea he suggested
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
hairraiser quadroon
  10/11/24
sleeping with anyone within your orbit of friends & fami...
appetizing patrolman
  10/11/24
mostly cr
provocative property
  10/11/24
...
histrionic nighttime home
  10/12/24
this is exactly why I never sleep with my wife
amethyst preventive strike
  12/23/25
depends on if your wife is dead or not
Arousing Skinny Woman Partner
  10/11/24
i believe this is colloquially known as "the biden rule...
appetizing patrolman
  10/11/24
...
Rebellious resort sneaky criminal
  11/30/25
only if you don't take pictures to share with us
Self-absorbed ratface state
  10/11/24
(martin brodeur)
turquoise chad
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
Pale Church Blood Rage
  10/12/24
This. Plus they are always hugging and kissing you.
motley erotic doctorate
  10/12/24
...
Self-absorbed ratface state
  12/23/25
Wtf
provocative property
  10/12/24
This is my life. Constant blue balls.
Pale Church Blood Rage
  10/12/24
...
exhilarant locus
  11/30/25
Is she a spicy Latina?
Henna Glittery Trailer Park
  10/12/24
...
Rebellious resort sneaky criminal
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
motley erotic doctorate
  10/12/24
180
Talking hyperventilating mediation alpha
  10/12/24
...
Dun Contagious Principal's Office Organic Girlfriend
  10/12/24
twist: the sil was Catherine of aragorn
unholy learning disabled forum
  10/12/24
If first brother was childless then this is classic Levirate...
racy medicated mental disorder
  10/12/24
...
Dun Contagious Principal's Office Organic Girlfriend
  10/12/24
He's literally the closest replacement for the guy. I can't ...
racy medicated mental disorder
  10/12/24
...
Dun Contagious Principal's Office Organic Girlfriend
  10/12/24
You're doing it for the purpose of having children, through ...
racy medicated mental disorder
  10/13/24
are we talking about your wife's sister or your brother's wi...
Jet-lagged coffee pot whorehouse
  10/12/24
How many times do we have to go over this.
Shivering indecent menage
  10/12/24
...
fantasy-prone splenetic set
  10/12/24
...
Rebellious resort sneaky criminal
  11/30/25
...
fantasy-prone splenetic set
  12/23/25
...
Ebony lettuce
  12/23/25
...
180 light lay international law enforcement agency
  12/23/25
yes
diverse disgusting dilemma
  10/12/24
voice of reason as always cbtp
provocative property
  10/12/24
not as deranged as brother-in-law
nofapping halford
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
House-broken talented ticket booth
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: provocative property

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: wonderful library scourge upon the earth

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: exhilarant locus

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: wonderful library scourge upon the earth



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



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: slimy theatre idea he suggested

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: Beady-eyed giraffe psychic

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: Arousing Skinny Woman Partner

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: slimy theatre idea he suggested

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: Ebony lettuce



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



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: slimy theatre idea he suggested

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: hairraiser quadroon

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: appetizing patrolman

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: provocative property

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: histrionic nighttime home



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



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: amethyst preventive strike

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: Arousing Skinny Woman Partner

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: appetizing patrolman

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: Rebellious resort sneaky criminal



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



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: Self-absorbed ratface state

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: turquoise chad

(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: Pale Church Blood Rage

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 erotic doctorate

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: Self-absorbed ratface state



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



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: provocative property

Wtf

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



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: Pale Church Blood Rage

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: exhilarant locus



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



Reply Favorite

Date: October 12th, 2024 11:41 AM
Author: Henna Glittery Trailer Park

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: Rebellious resort sneaky criminal



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



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: motley erotic doctorate

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: Talking hyperventilating mediation alpha

180

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



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: Dun Contagious Principal's Office Organic Girlfriend



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



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: unholy learning disabled forum

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: racy medicated mental disorder

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: Dun Contagious Principal's Office Organic Girlfriend



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



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: racy medicated mental disorder

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: Dun Contagious Principal's Office Organic Girlfriend



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



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: racy medicated mental disorder

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: Jet-lagged coffee pot whorehouse

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: Shivering indecent menage

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: fantasy-prone splenetic set



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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: Rebellious resort sneaky criminal



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



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: fantasy-prone splenetic set



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



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: Ebony lettuce



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



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: 180 light lay international law enforcement agency



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



Reply Favorite

Date: October 12th, 2024 11:51 AM
Author: diverse disgusting dilemma

yes

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



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: provocative property

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: nofapping halford

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: House-broken talented ticket booth

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)