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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?
diverse incel mother
  10/11/24
I dunno. What if she has a nice ass?
ungodly bbw
  10/11/24
more detail plz
Sepia step-uncle's house quadroon
  10/11/24
...
ungodly bbw
  10/11/24
It probably depends on how much you hate your bio parent and...
stimulating stage yarmulke
  10/11/24
do u know what a sister in law is?
Maniacal Filthy Round Eye Chapel
  10/11/24
he's watched too much porn
canary tanning salon
  10/11/24
Objection, nonresponsive
stimulating stage yarmulke
  10/11/24
...
submissive base philosopher-king
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
stimulating stage yarmulke
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
Multi-colored Legal Warrant Site
  10/11/24
sleeping with anyone within your orbit of friends & fami...
Self-centered ape
  10/11/24
mostly cr
diverse incel mother
  10/11/24
...
spruce house goal in life
  10/12/24
this is exactly why I never sleep with my wife
electric orchestra pit headpube
  12/23/25
depends on if your wife is dead or not
canary tanning salon
  10/11/24
i believe this is colloquially known as "the biden rule...
Self-centered ape
  10/11/24
...
Razzmatazz carmine state shitlib
  11/30/25
only if you don't take pictures to share with us
vibrant lodge depressive
  10/11/24
(martin brodeur)
Khaki rigpig skinny woman
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
Maize resort gaping
  10/12/24
This. Plus they are always hugging and kissing you.
contagious circlehead
  10/12/24
...
vibrant lodge depressive
  12/23/25
Wtf
diverse incel mother
  10/12/24
This is my life. Constant blue balls.
Maize resort gaping
  10/12/24
...
Sepia step-uncle's house quadroon
  11/30/25
i'm married to the younger hotter sister, and the temptation...
...,,..;...,,..,..,...,,,;..,
  06/03/26
Is she a spicy Latina?
Jade wonderful preventive strike
  10/12/24
...
Razzmatazz carmine state shitlib
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
contagious circlehead
  10/12/24
180
excitant corner private investor
  10/12/24
...
supple faggotry institution
  10/12/24
twist: the sil was Catherine of aragorn
soul-stirring cruel-hearted indian lodge
  10/12/24
If first brother was childless then this is classic Levirate...
fiercely-loyal abode
  10/12/24
...
supple faggotry institution
  10/12/24
He's literally the closest replacement for the guy. I can't ...
fiercely-loyal abode
  10/12/24
...
supple faggotry institution
  10/12/24
You're doing it for the purpose of having children, through ...
fiercely-loyal abode
  10/13/24
are we talking about your wife's sister or your brother's wi...
Lascivious red multi-billionaire kitty
  10/12/24
How many times do we have to go over this.
swashbuckling field
  10/12/24
...
Laughsome Theatre
  10/12/24
...
Razzmatazz carmine state shitlib
  11/30/25
...
Laughsome Theatre
  12/23/25
...
submissive base philosopher-king
  12/23/25
...
fear-inspiring 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
Gaped Black Theater Stage Crotch
  10/12/24
voice of reason as always cbtp
diverse incel mother
  10/12/24
not as deranged as brother-in-law
charismatic unhinged box office
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
Fantasy-prone abnormal gas station
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: diverse incel mother

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: ungodly bbw

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: Sepia step-uncle's house quadroon

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: ungodly bbw



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



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: stimulating stage yarmulke

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: Maniacal Filthy Round Eye Chapel

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: canary tanning salon

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: stimulating stage yarmulke

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: submissive base philosopher-king



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



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: stimulating stage yarmulke

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: Multi-colored Legal Warrant Site

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: Self-centered ape

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: diverse incel mother

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: spruce house goal in life



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



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: electric orchestra pit headpube

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: canary tanning salon

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: Self-centered ape

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: Razzmatazz carmine state shitlib



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



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: vibrant lodge depressive

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: Khaki rigpig skinny woman

(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: Maize resort gaping

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: contagious circlehead

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: vibrant lodge depressive



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



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: diverse incel mother

Wtf

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



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: Maize resort gaping

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: Sepia step-uncle's house quadroon



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



Reply Favorite

Date: October 12th, 2024 11:41 AM
Author: Jade wonderful preventive strike

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: Razzmatazz carmine state shitlib



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



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: contagious circlehead

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: excitant corner private investor

180

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



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: supple faggotry institution



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



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: soul-stirring cruel-hearted indian lodge

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: fiercely-loyal abode

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: supple faggotry institution



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



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: fiercely-loyal abode

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: supple faggotry institution



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



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: fiercely-loyal abode

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: Lascivious red multi-billionaire kitty

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: swashbuckling field

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: Laughsome Theatre



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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: Razzmatazz carmine state shitlib



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



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: Laughsome Theatre



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



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: submissive base philosopher-king



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



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: fear-inspiring foreskin



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



Reply Favorite

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



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



Reply Favorite

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



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



Reply Favorite

Date: October 12th, 2024 11:51 AM
Author: Gaped Black Theater Stage Crotch

yes

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



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: diverse incel mother

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: charismatic unhinged box office

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: Fantasy-prone abnormal gas station

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)