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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?
Angry gas station
  10/11/24
I dunno. What if she has a nice ass?
aqua place of business philosopher-king
  10/11/24
more detail plz
abnormal boyish address
  10/11/24
...
aqua place of business philosopher-king
  10/11/24
It probably depends on how much you hate your bio parent and...
exhilarant mentally impaired brunch depressive
  10/11/24
do u know what a sister in law is?
Histrionic casino
  10/11/24
he's watched too much porn
Beady-eyed ultramarine den
  10/11/24
Objection, nonresponsive
exhilarant mentally impaired brunch depressive
  10/11/24
...
Mauve reading party regret
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
exhilarant mentally impaired brunch depressive
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
Passionate obsidian laser beams plaza
  10/11/24
sleeping with anyone within your orbit of friends & fami...
Irradiated sickened roommate alpha
  10/11/24
mostly cr
Angry gas station
  10/11/24
...
aromatic bespoke theater stage tattoo
  10/12/24
this is exactly why I never sleep with my wife
Razzle-dazzle prole
  12/23/25
depends on if your wife is dead or not
Beady-eyed ultramarine den
  10/11/24
i believe this is colloquially known as "the biden rule...
Irradiated sickened roommate alpha
  10/11/24
...
big electric furnace
  11/30/25
only if you don't take pictures to share with us
Bistre piazza french chef
  10/11/24
(martin brodeur)
Glittery Temple Persian
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
Coiffed point mother
  10/12/24
This. Plus they are always hugging and kissing you.
Laughsome Insanely Creepy Gunner Stock Car
  10/12/24
...
Bistre piazza french chef
  12/23/25
Wtf
Angry gas station
  10/12/24
This is my life. Constant blue balls.
Coiffed point mother
  10/12/24
...
abnormal boyish address
  11/30/25
i'm married to the younger hotter sister, and the temptation...
...,,..;...,,..,..,...,,,;..,
  06/03/26
Is she a spicy Latina?
impertinent senate
  10/12/24
...
big electric furnace
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
Laughsome Insanely Creepy Gunner Stock Car
  10/12/24
180
aphrodisiac sneaky criminal
  10/12/24
...
Concupiscible aggressive center
  10/12/24
twist: the sil was Catherine of aragorn
vibrant associate
  10/12/24
If first brother was childless then this is classic Levirate...
diverse rehab background story
  10/12/24
...
Concupiscible aggressive center
  10/12/24
He's literally the closest replacement for the guy. I can't ...
diverse rehab background story
  10/12/24
...
Concupiscible aggressive center
  10/12/24
You're doing it for the purpose of having children, through ...
diverse rehab background story
  10/13/24
are we talking about your wife's sister or your brother's wi...
federal stirring therapy
  10/12/24
How many times do we have to go over this.
lascivious emerald parlour
  10/12/24
...
racy sanctuary foreskin
  10/12/24
...
big electric furnace
  11/30/25
...
racy sanctuary foreskin
  12/23/25
...
Mauve reading party regret
  12/23/25
...
Appetizing legend organic girlfriend
  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
brass kitty
  10/12/24
voice of reason as always cbtp
Angry gas station
  10/12/24
not as deranged as brother-in-law
galvanic cordovan library
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
Cream boistinker theater
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: Angry gas station

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

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



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: aqua place of business philosopher-king

I dunno. What if she has a nice ass?

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



Reply Favorite

Date: October 11th, 2024 4:35 PM
Author: abnormal boyish address

more detail plz

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



Reply Favorite

Date: October 11th, 2024 4:37 PM
Author: aqua place of business philosopher-king



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



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: exhilarant mentally impaired brunch depressive

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�id.#48188001)



Reply Favorite

Date: October 11th, 2024 4:41 PM
Author: Histrionic casino

do u know what a sister in law is?

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Beady-eyed ultramarine den

he's watched too much porn

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



Reply Favorite

Date: October 11th, 2024 7:51 PM
Author: exhilarant mentally impaired brunch depressive

Objection, nonresponsive

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



Reply Favorite

Date: December 23rd, 2025 2:44 AM
Author: Mauve reading party regret



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



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: exhilarant mentally impaired brunch depressive

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�id.#48188616)



Reply Favorite

Date: October 11th, 2024 8:22 PM
Author: Passionate obsidian laser beams plaza

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�id.#48188745)



Reply Favorite

Date: October 11th, 2024 4:42 PM
Author: Irradiated sickened roommate alpha

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�id.#48188009)



Reply Favorite

Date: October 11th, 2024 4:50 PM
Author: Angry gas station

mostly cr

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



Reply Favorite

Date: October 12th, 2024 3:21 PM
Author: aromatic bespoke theater stage tattoo



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



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: Razzle-dazzle prole

this is exactly why I never sleep with my wife

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Beady-eyed ultramarine den

depends on if your wife is dead or not

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Irradiated sickened roommate alpha

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

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: big electric furnace



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



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: Bistre piazza french chef

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

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



Reply Favorite

Date: October 11th, 2024 8:14 PM
Author: Glittery Temple Persian

(martin brodeur)

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



Reply Favorite

Date: October 12th, 2024 10:56 AM
Author: Coiffed point mother

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�id.#48189844)



Reply Favorite

Date: October 12th, 2024 11:38 AM
Author: Laughsome Insanely Creepy Gunner Stock Car

This. Plus they are always hugging and kissing you.

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



Reply Favorite

Date: December 23rd, 2025 6:52 AM
Author: Bistre piazza french chef



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



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: Angry gas station

Wtf

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



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: Coiffed point mother

This is my life. Constant blue balls.

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



Reply Favorite

Date: November 30th, 2025 4:44 PM
Author: abnormal boyish address



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



Reply Favorite

Date: October 12th, 2024 11:41 AM
Author: impertinent senate

Is she a spicy Latina?

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: big electric furnace



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



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: Laughsome Insanely Creepy Gunner Stock Car

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�id.#48189964)



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: aphrodisiac sneaky criminal

180

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



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: Concupiscible aggressive center



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



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: vibrant associate

twist: the sil was Catherine of aragorn

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



Reply Favorite

Date: October 12th, 2024 3:20 PM
Author: diverse rehab background story

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�id.#48190659)



Reply Favorite

Date: October 12th, 2024 3:25 PM
Author: Concupiscible aggressive center



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



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: diverse rehab background story

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�id.#48190707)



Reply Favorite

Date: October 12th, 2024 3:38 PM
Author: Concupiscible aggressive center



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



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: diverse rehab background story

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�id.#48191875)



Reply Favorite

Date: October 12th, 2024 11:50 AM
Author: federal stirring therapy

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�id.#48189984)



Reply Favorite

Date: October 12th, 2024 11:52 AM
Author: lascivious emerald parlour

How many times do we have to go over this.

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



Reply Favorite

Date: October 12th, 2024 4:01 PM
Author: racy sanctuary foreskin



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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: big electric furnace



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



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: racy sanctuary foreskin



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



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: Mauve reading party regret



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



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: Appetizing legend organic girlfriend



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



Reply Favorite

Date: October 12th, 2024 11:51 AM
Author: brass kitty

yes

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



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: Angry gas station

voice of reason as always cbtp

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



Reply Favorite

Date: October 12th, 2024 11:57 AM
Author: galvanic cordovan library

not as deranged as brother-in-law

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



Reply Favorite

Date: December 23rd, 2025 7:03 AM
Author: Cream boistinker theater

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�id.#49533184)