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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?
violet bbw
  10/11/24
I dunno. What if she has a nice ass?
aggressive disgusting indian lodge
  10/11/24
more detail plz
Startling henna set antidepressant drug
  10/11/24
...
aggressive disgusting indian lodge
  10/11/24
It probably depends on how much you hate your bio parent and...
Demanding self-absorbed psychic
  10/11/24
do u know what a sister in law is?
Contagious stage
  10/11/24
he's watched too much porn
arousing misanthropic coffee pot parlour
  10/11/24
Objection, nonresponsive
Demanding self-absorbed psychic
  10/11/24
...
multi-colored hominid stage
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
Demanding self-absorbed psychic
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
very tactful jewess
  10/11/24
sleeping with anyone within your orbit of friends & fami...
deep soggy partner
  10/11/24
mostly cr
violet bbw
  10/11/24
...
fighting floppy public bath selfie
  10/12/24
this is exactly why I never sleep with my wife
Dull Rough-skinned Institution
  12/23/25
depends on if your wife is dead or not
arousing misanthropic coffee pot parlour
  10/11/24
i believe this is colloquially known as "the biden rule...
deep soggy partner
  10/11/24
...
Bat shit crazy big piazza puppy
  11/30/25
only if you don't take pictures to share with us
Carnelian Doobsian Locus Half-breed
  10/11/24
(martin brodeur)
dashing home son of senegal
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
Drab passionate french chef
  10/12/24
This. Plus they are always hugging and kissing you.
crusty chapel death wish
  10/12/24
...
Carnelian Doobsian Locus Half-breed
  12/23/25
Wtf
violet bbw
  10/12/24
This is my life. Constant blue balls.
Drab passionate french chef
  10/12/24
...
Startling henna set antidepressant drug
  11/30/25
i'm married to the younger hotter sister, and the temptation...
...,,..;...,,..,..,...,,,;..,
  06/03/26
Is she a spicy Latina?
naked station skinny woman
  10/12/24
...
Bat shit crazy big piazza puppy
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
crusty chapel death wish
  10/12/24
180
razzle seedy police squad hunting ground
  10/12/24
...
Transparent razzle-dazzle immigrant tank
  10/12/24
twist: the sil was Catherine of aragorn
Submissive Honey-headed Personal Credit Line Nursing Home
  10/12/24
If first brother was childless then this is classic Levirate...
Fragrant French Hospital Degenerate
  10/12/24
...
Transparent razzle-dazzle immigrant tank
  10/12/24
He's literally the closest replacement for the guy. I can't ...
Fragrant French Hospital Degenerate
  10/12/24
...
Transparent razzle-dazzle immigrant tank
  10/12/24
You're doing it for the purpose of having children, through ...
Fragrant French Hospital Degenerate
  10/13/24
are we talking about your wife's sister or your brother's wi...
odious hairless gas station crotch
  10/12/24
How many times do we have to go over this.
tripping native athletic conference
  10/12/24
...
lascivious location old irish cottage
  10/12/24
...
Bat shit crazy big piazza puppy
  11/30/25
...
lascivious location old irish cottage
  12/23/25
...
multi-colored hominid stage
  12/23/25
...
flushed tanning salon
  12/23/25
...
gedood persoon
  06/03/26
...
Bellevue therapy dog tp
  06/03/26
...
Mailer Daemon
  06/03/26
...
Bellevue therapy dog tp
  06/03/26
yes
exhilarant brunch famous landscape painting
  10/12/24
voice of reason as always cbtp
violet bbw
  10/12/24
not as deranged as brother-in-law
violent heady candlestick maker
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
Jade irradiated regret ticket booth
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: violet bbw

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: aggressive disgusting indian lodge

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: Startling henna set antidepressant drug

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: aggressive disgusting indian lodge



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



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: Demanding self-absorbed psychic

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: Contagious stage

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 misanthropic coffee pot parlour

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: Demanding self-absorbed psychic

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: multi-colored hominid stage



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



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: Demanding self-absorbed psychic

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: very tactful jewess

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: deep soggy partner

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: violet bbw

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: fighting floppy public bath selfie



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



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: Dull Rough-skinned Institution

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 misanthropic coffee pot parlour

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: deep soggy partner

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: Bat shit crazy big piazza puppy



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



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: Carnelian Doobsian Locus Half-breed

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: dashing home son of senegal

(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: Drab passionate french chef

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: crusty chapel death wish

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: Carnelian Doobsian Locus Half-breed



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



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: violet bbw

Wtf

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



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: Drab passionate french chef

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: Startling henna set antidepressant drug



(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: naked station skinny woman

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: Bat shit crazy big piazza puppy



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



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: crusty chapel death wish

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: razzle seedy police squad hunting ground

180

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



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: Transparent razzle-dazzle immigrant tank



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



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: Submissive Honey-headed Personal Credit Line Nursing Home

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: Fragrant French Hospital Degenerate

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: Transparent razzle-dazzle immigrant tank



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



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: Fragrant French Hospital Degenerate

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: Transparent razzle-dazzle immigrant tank



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



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: Fragrant French Hospital Degenerate

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: odious hairless gas station crotch

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: tripping native athletic conference

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: lascivious location old irish cottage



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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: Bat shit crazy big piazza puppy



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



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: lascivious location old irish cottage



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



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: multi-colored hominid stage



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



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: flushed tanning salon



(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: Bellevue therapy dog tp



(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: Bellevue therapy dog tp



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



Reply Favorite

Date: October 12th, 2024 11:51 AM
Author: exhilarant brunch famous landscape painting

yes

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



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: violet bbw

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: violent heady candlestick maker

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: Jade irradiated regret 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)