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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?
pea-brained curious fanboi lodge
  10/11/24
I dunno. What if she has a nice ass?
Flatulent electric furnace parlour
  10/11/24
more detail plz
diverse harsh immigrant stead
  10/11/24
...
Flatulent electric furnace parlour
  10/11/24
It probably depends on how much you hate your bio parent and...
wild liquid oxygen
  10/11/24
do u know what a sister in law is?
bonkers aphrodisiac mental disorder
  10/11/24
he's watched too much porn
Passionate sapphire main people rehab
  10/11/24
Objection, nonresponsive
wild liquid oxygen
  10/11/24
...
Sick goal in life
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
wild liquid oxygen
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
Comical factory reset button
  10/11/24
sleeping with anyone within your orbit of friends & fami...
Big Submissive Bawdyhouse
  10/11/24
mostly cr
pea-brained curious fanboi lodge
  10/11/24
...
disgusting honey-headed mood
  10/12/24
this is exactly why I never sleep with my wife
spectacular gay milk
  12/23/25
depends on if your wife is dead or not
Passionate sapphire main people rehab
  10/11/24
i believe this is colloquially known as "the biden rule...
Big Submissive Bawdyhouse
  10/11/24
...
Irradiated quadroon garrison
  11/30/25
only if you don't take pictures to share with us
Milky Market
  10/11/24
(martin brodeur)
Bisexual brethren
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
Boyish Whorehouse
  10/12/24
This. Plus they are always hugging and kissing you.
Vigorous chestnut cumskin azn
  10/12/24
...
Milky Market
  12/23/25
Wtf
pea-brained curious fanboi lodge
  10/12/24
This is my life. Constant blue balls.
Boyish Whorehouse
  10/12/24
...
diverse harsh immigrant stead
  11/30/25
Is she a spicy Latina?
Up-to-no-good theater
  10/12/24
...
Irradiated quadroon garrison
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
Vigorous chestnut cumskin azn
  10/12/24
180
infuriating national
  10/12/24
...
maroon cuck space
  10/12/24
twist: the sil was Catherine of aragorn
Domesticated Cyan Tanning Salon Sex Offender
  10/12/24
If first brother was childless then this is classic Levirate...
Rose Razzle-dazzle University Double Fault
  10/12/24
...
maroon cuck space
  10/12/24
He's literally the closest replacement for the guy. I can't ...
Rose Razzle-dazzle University Double Fault
  10/12/24
...
maroon cuck space
  10/12/24
You're doing it for the purpose of having children, through ...
Rose Razzle-dazzle University Double Fault
  10/13/24
are we talking about your wife's sister or your brother's wi...
Glittery hyperactive kitty cat property
  10/12/24
How many times do we have to go over this.
titillating state
  10/12/24
...
Cocky kitchen rigor
  10/12/24
...
Irradiated quadroon garrison
  11/30/25
...
Cocky kitchen rigor
  12/23/25
...
Sick goal in life
  12/23/25
...
Tantric foreskin
  12/23/25
yes
Exhilarant Half-breed
  10/12/24
voice of reason as always cbtp
pea-brained curious fanboi lodge
  10/12/24
not as deranged as brother-in-law
impressive meetinghouse
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
misunderstood chest-beating den
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: pea-brained curious fanboi lodge

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

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



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: Flatulent electric furnace parlour

I dunno. What if she has a nice ass?

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



Reply Favorite

Date: October 11th, 2024 4:35 PM
Author: diverse harsh immigrant stead

more detail plz

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



Reply Favorite

Date: October 11th, 2024 4:37 PM
Author: Flatulent electric furnace parlour



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



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: wild liquid oxygen

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=2most#48188001)



Reply Favorite

Date: October 11th, 2024 4:41 PM
Author: bonkers aphrodisiac mental disorder

do u know what a sister in law is?

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Passionate sapphire main people rehab

he's watched too much porn

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



Reply Favorite

Date: October 11th, 2024 7:51 PM
Author: wild liquid oxygen

Objection, nonresponsive

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



Reply Favorite

Date: December 23rd, 2025 2:44 AM
Author: Sick goal in life



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



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: wild liquid oxygen

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=2most#48188616)



Reply Favorite

Date: October 11th, 2024 8:22 PM
Author: Comical factory reset button

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=2most#48188745)



Reply Favorite

Date: October 11th, 2024 4:42 PM
Author: Big Submissive 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=2most#48188009)



Reply Favorite

Date: October 11th, 2024 4:50 PM
Author: pea-brained curious fanboi lodge

mostly cr

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



Reply Favorite

Date: October 12th, 2024 3:21 PM
Author: disgusting honey-headed mood



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



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: spectacular gay milk

this is exactly why I never sleep with my wife

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Passionate sapphire main people rehab

depends on if your wife is dead or not

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Big Submissive Bawdyhouse

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

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: Irradiated quadroon garrison



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



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: Milky Market

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

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



Reply Favorite

Date: October 11th, 2024 8:14 PM
Author: Bisexual brethren

(martin brodeur)

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



Reply Favorite

Date: October 12th, 2024 10:56 AM
Author: Boyish Whorehouse

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=2most#48189844)



Reply Favorite

Date: October 12th, 2024 11:38 AM
Author: Vigorous chestnut cumskin azn

This. Plus they are always hugging and kissing you.

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



Reply Favorite

Date: December 23rd, 2025 6:52 AM
Author: Milky Market



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



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: pea-brained curious fanboi lodge

Wtf

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



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: Boyish Whorehouse

This is my life. Constant blue balls.

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



Reply Favorite

Date: November 30th, 2025 4:44 PM
Author: diverse harsh immigrant stead



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



Reply Favorite

Date: October 12th, 2024 11:41 AM
Author: Up-to-no-good theater

Is she a spicy Latina?

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: Irradiated quadroon garrison



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



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: Vigorous chestnut cumskin azn

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=2most#48189964)



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: infuriating national

180

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



Reply Favorite

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



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



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: Domesticated Cyan Tanning Salon Sex Offender

twist: the sil was Catherine of aragorn

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



Reply Favorite

Date: October 12th, 2024 3:20 PM
Author: Rose Razzle-dazzle University Double Fault

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=2most#48190659)



Reply Favorite

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



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



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: Rose Razzle-dazzle University Double Fault

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=2most#48190707)



Reply Favorite

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



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



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: Rose Razzle-dazzle University Double Fault

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=2most#48191875)



Reply Favorite

Date: October 12th, 2024 11:50 AM
Author: Glittery hyperactive kitty cat property

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

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



Reply Favorite

Date: October 12th, 2024 11:52 AM
Author: titillating state

How many times do we have to go over this.

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



Reply Favorite

Date: October 12th, 2024 4:01 PM
Author: Cocky kitchen rigor



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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: Irradiated quadroon garrison



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



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: Cocky kitchen rigor



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



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: Sick goal in life



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



Reply Favorite

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



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



Reply Favorite

Date: October 12th, 2024 11:51 AM
Author: Exhilarant Half-breed

yes

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



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: pea-brained curious fanboi lodge

voice of reason as always cbtp

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



Reply Favorite

Date: October 12th, 2024 11:57 AM
Author: impressive meetinghouse

not as deranged as brother-in-law

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



Reply Favorite

Date: December 23rd, 2025 7:03 AM
Author: misunderstood chest-beating den

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=2most#49533184)