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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?
navy painfully honest fortuitous meteor
  10/11/24
I dunno. What if she has a nice ass?
poppy wonderful theatre
  10/11/24
more detail plz
fantasy-prone stimulating pit
  10/11/24
...
poppy wonderful theatre
  10/11/24
It probably depends on how much you hate your bio parent and...
Coral Unholy Antidepressant Drug Plaza
  10/11/24
do u know what a sister in law is?
splenetic address toilet seat
  10/11/24
he's watched too much porn
fighting supple box office
  10/11/24
Objection, nonresponsive
Coral Unholy Antidepressant Drug Plaza
  10/11/24
...
Charismatic indigo rigor
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
Coral Unholy Antidepressant Drug Plaza
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
electric violent ticket booth
  10/11/24
sleeping with anyone within your orbit of friends & fami...
drab den nowag
  10/11/24
mostly cr
navy painfully honest fortuitous meteor
  10/11/24
...
Black concupiscible rehab
  10/12/24
this is exactly why I never sleep with my wife
Blathering mind-boggling national security agency sanctuary
  12/23/25
depends on if your wife is dead or not
fighting supple box office
  10/11/24
i believe this is colloquially known as "the biden rule...
drab den nowag
  10/11/24
...
Cracking garrison karate
  11/30/25
only if you don't take pictures to share with us
gold famous landscape painting theater stage
  10/11/24
(martin brodeur)
Pearly Whorehouse
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
Cream area
  10/12/24
This. Plus they are always hugging and kissing you.
Exciting heaven death wish
  10/12/24
...
gold famous landscape painting theater stage
  12/23/25
Wtf
navy painfully honest fortuitous meteor
  10/12/24
This is my life. Constant blue balls.
Cream area
  10/12/24
...
fantasy-prone stimulating pit
  11/30/25
i'm married to the younger hotter sister, and the temptation...
...,,..;...,,..,..,...,,,;..,
  06/03/26
Is she a spicy Latina?
Sienna mother
  10/12/24
...
Cracking garrison karate
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
Exciting heaven death wish
  10/12/24
180
demanding stag film juggernaut
  10/12/24
...
lake step-uncle's house immigrant
  10/12/24
twist: the sil was Catherine of aragorn
Chartreuse tripping center
  10/12/24
If first brother was childless then this is classic Levirate...
nudist spruce office
  10/12/24
...
lake step-uncle's house immigrant
  10/12/24
He's literally the closest replacement for the guy. I can't ...
nudist spruce office
  10/12/24
...
lake step-uncle's house immigrant
  10/12/24
You're doing it for the purpose of having children, through ...
nudist spruce office
  10/13/24
are we talking about your wife's sister or your brother's wi...
Chrome Half-breed
  10/12/24
How many times do we have to go over this.
misunderstood self-absorbed jewess point
  10/12/24
...
Rough-skinned mental disorder field
  10/12/24
...
Cracking garrison karate
  11/30/25
...
Rough-skinned mental disorder field
  12/23/25
...
Charismatic indigo rigor
  12/23/25
...
diverse site really tough guy
  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
Thriller iridescent mood
  10/12/24
voice of reason as always cbtp
navy painfully honest fortuitous meteor
  10/12/24
not as deranged as brother-in-law
jade trip dilemma
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
razzle tan native selfie
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: navy painfully honest fortuitous meteor

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: poppy wonderful theatre

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: fantasy-prone stimulating pit

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: poppy wonderful theatre



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



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: Coral Unholy Antidepressant Drug Plaza

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: splenetic address toilet seat

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: fighting supple box office

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: Coral Unholy Antidepressant Drug Plaza

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: Charismatic indigo rigor



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



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: Coral Unholy Antidepressant Drug Plaza

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: electric violent ticket booth

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: drab den nowag

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: navy painfully honest fortuitous meteor

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: Black concupiscible rehab



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



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: Blathering mind-boggling national security agency sanctuary

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: fighting supple box office

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: drab den nowag

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: Cracking garrison karate



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



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: gold famous landscape painting theater stage

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: Pearly Whorehouse

(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: Cream area

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: Exciting heaven 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: gold famous landscape painting theater stage



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



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: navy painfully honest fortuitous meteor

Wtf

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



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: Cream area

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: fantasy-prone stimulating pit



(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: Sienna mother

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: Cracking garrison karate



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



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: Exciting heaven 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: demanding stag film juggernaut

180

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



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: lake step-uncle's house immigrant



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



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: Chartreuse tripping center

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: nudist spruce office

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: lake step-uncle's house immigrant



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



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: nudist spruce office

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: lake step-uncle's house immigrant



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



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: nudist spruce office

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: Chrome Half-breed

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: misunderstood self-absorbed jewess point

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: Rough-skinned mental disorder field



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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: Cracking garrison karate



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



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: Rough-skinned mental disorder field



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



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: Charismatic indigo rigor



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



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: diverse site really tough guy



(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: Thriller iridescent mood

yes

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



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: navy painfully honest fortuitous meteor

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: jade trip dilemma

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: razzle tan native selfie

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)