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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?
flushed razzle-dazzle market
  10/11/24
I dunno. What if she has a nice ass?
Razzmatazz Milk
  10/11/24
more detail plz
Carmine Erotic Knife Community Account
  10/11/24
...
Razzmatazz Milk
  10/11/24
It probably depends on how much you hate your bio parent and...
At-the-ready institution
  10/11/24
do u know what a sister in law is?
stimulating yapping parlor codepig
  10/11/24
he's watched too much porn
180 brunch roast beef
  10/11/24
Objection, nonresponsive
At-the-ready institution
  10/11/24
...
Hideous flickering water buffalo
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
At-the-ready institution
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
judgmental alcoholic public bath
  10/11/24
sleeping with anyone within your orbit of friends & fami...
Poppy heady base degenerate
  10/11/24
mostly cr
flushed razzle-dazzle market
  10/11/24
...
Lavender Kitty
  10/12/24
this is exactly why I never sleep with my wife
Beta roommate mad cow disease
  12/23/25
depends on if your wife is dead or not
180 brunch roast beef
  10/11/24
i believe this is colloquially known as "the biden rule...
Poppy heady base degenerate
  10/11/24
...
dashing kitty cat box office
  11/30/25
only if you don't take pictures to share with us
big temple generalized bond
  10/11/24
(martin brodeur)
light crotch
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
overrated flesh faggotry hospital
  10/12/24
This. Plus they are always hugging and kissing you.
henna disturbing coffee pot gaming laptop
  10/12/24
...
big temple generalized bond
  12/23/25
Wtf
flushed razzle-dazzle market
  10/12/24
This is my life. Constant blue balls.
overrated flesh faggotry hospital
  10/12/24
...
Carmine Erotic Knife Community Account
  11/30/25
i'm married to the younger hotter sister, and the temptation...
...,,..;...,,..,..,...,,,;..,
  06/03/26
Is she a spicy Latina?
Lime Infuriating Principal's Office
  10/12/24
...
dashing kitty cat box office
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
henna disturbing coffee pot gaming laptop
  10/12/24
180
disrespectful university ceo
  10/12/24
...
Provocative wine black woman tanning salon
  10/12/24
twist: the sil was Catherine of aragorn
anal fuchsia lodge
  10/12/24
If first brother was childless then this is classic Levirate...
Razzle greedy jap
  10/12/24
...
Provocative wine black woman tanning salon
  10/12/24
He's literally the closest replacement for the guy. I can't ...
Razzle greedy jap
  10/12/24
...
Provocative wine black woman tanning salon
  10/12/24
You're doing it for the purpose of having children, through ...
Razzle greedy jap
  10/13/24
are we talking about your wife's sister or your brother's wi...
fishy state
  10/12/24
How many times do we have to go over this.
hateful hominid
  10/12/24
...
maniacal effete piazza dingle berry
  10/12/24
...
dashing kitty cat box office
  11/30/25
...
maniacal effete piazza dingle berry
  12/23/25
...
Hideous flickering water buffalo
  12/23/25
...
Stirring lay masturbator
  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
Insane karate theater stage
  10/12/24
voice of reason as always cbtp
flushed razzle-dazzle market
  10/12/24
not as deranged as brother-in-law
Mind-boggling buck-toothed rehab cuckoldry
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
cream submissive library affirmative action
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: flushed razzle-dazzle market

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: Razzmatazz Milk

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: Carmine Erotic Knife Community Account

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: Razzmatazz Milk



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



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: At-the-ready institution

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: stimulating yapping parlor codepig

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: 180 brunch roast beef

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: At-the-ready institution

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: Hideous flickering water buffalo



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



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: At-the-ready institution

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: judgmental alcoholic public bath

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: Poppy heady base degenerate

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: flushed razzle-dazzle market

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: Lavender Kitty



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



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: Beta roommate 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: 180 brunch roast beef

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: Poppy heady base degenerate

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: dashing kitty cat box office



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



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: big temple generalized bond

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: light crotch

(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: overrated flesh faggotry hospital

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: henna disturbing coffee pot gaming laptop

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: big temple generalized bond



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



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: flushed razzle-dazzle market

Wtf

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



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: overrated flesh faggotry hospital

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: Carmine Erotic Knife Community Account



(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: Lime Infuriating Principal's Office

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: dashing kitty cat box office



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



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: henna disturbing coffee pot gaming laptop

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: disrespectful university ceo

180

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



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: Provocative wine black woman tanning salon



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



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: anal fuchsia lodge

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: Razzle greedy jap

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: Provocative wine black woman tanning salon



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



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: Razzle greedy jap

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: Provocative wine black woman tanning salon



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



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: Razzle greedy jap

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: fishy state

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: hateful hominid

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: maniacal effete piazza dingle berry



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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: dashing kitty cat box office



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



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: maniacal effete piazza dingle berry



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



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: Hideous flickering water buffalo



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



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: Stirring lay masturbator



(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: Insane karate theater stage

yes

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



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: flushed razzle-dazzle market

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: Mind-boggling buck-toothed rehab cuckoldry

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: cream submissive library affirmative action

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)