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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?
Spruce Diverse Ceo Locale
  10/11/24
I dunno. What if she has a nice ass?
Ebony faggot firefighter
  10/11/24
more detail plz
alcoholic pale home
  10/11/24
...
Ebony faggot firefighter
  10/11/24
It probably depends on how much you hate your bio parent and...
comical pearly crackhouse coffee pot
  10/11/24
do u know what a sister in law is?
indigo voyeur
  10/11/24
he's watched too much porn
doobsian gold striped hyena pit
  10/11/24
Objection, nonresponsive
comical pearly crackhouse coffee pot
  10/11/24
...
avocado low-t nursing home idea he suggested
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
comical pearly crackhouse coffee pot
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
red state hunting ground
  10/11/24
sleeping with anyone within your orbit of friends & fami...
Sadistic floppy round eye gas station
  10/11/24
mostly cr
Spruce Diverse Ceo Locale
  10/11/24
...
flirting ocher sandwich
  10/12/24
this is exactly why I never sleep with my wife
Chartreuse excitant church
  12/23/25
depends on if your wife is dead or not
doobsian gold striped hyena pit
  10/11/24
i believe this is colloquially known as "the biden rule...
Sadistic floppy round eye gas station
  10/11/24
...
Drab native
  11/30/25
only if you don't take pictures to share with us
Appetizing property
  10/11/24
(martin brodeur)
Exciting hall hominid
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
White ungodly church building
  10/12/24
This. Plus they are always hugging and kissing you.
Aquamarine Police Squad Knife
  10/12/24
...
Appetizing property
  12/23/25
Wtf
Spruce Diverse Ceo Locale
  10/12/24
This is my life. Constant blue balls.
White ungodly church building
  10/12/24
...
alcoholic pale home
  11/30/25
i'm married to the younger hotter sister, and the temptation...
...,,..;...,,..,..,...,,,;..,
  06/03/26
Is she a spicy Latina?
chestnut sanctuary
  10/12/24
...
Drab native
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
Aquamarine Police Squad Knife
  10/12/24
180
cerebral box office
  10/12/24
...
contagious free-loading messiness
  10/12/24
twist: the sil was Catherine of aragorn
vibrant goal in life pisswyrm
  10/12/24
If first brother was childless then this is classic Levirate...
costumed station
  10/12/24
...
contagious free-loading messiness
  10/12/24
He's literally the closest replacement for the guy. I can't ...
costumed station
  10/12/24
...
contagious free-loading messiness
  10/12/24
You're doing it for the purpose of having children, through ...
costumed station
  10/13/24
are we talking about your wife's sister or your brother's wi...
galvanic bearded milk crotch
  10/12/24
How many times do we have to go over this.
irate forum
  10/12/24
...
seedy liquid oxygen telephone
  10/12/24
...
Drab native
  11/30/25
...
seedy liquid oxygen telephone
  12/23/25
...
avocado low-t nursing home idea he suggested
  12/23/25
...
Fragrant filthpig skinny woman
  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
razzle-dazzle cheese-eating parlor
  10/12/24
voice of reason as always cbtp
Spruce Diverse Ceo Locale
  10/12/24
not as deranged as brother-in-law
soul-stirring canary meetinghouse
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
narrow-minded heady nibblets garrison
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: Spruce Diverse Ceo Locale

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

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



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: Ebony faggot firefighter

I dunno. What if she has a nice ass?

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



Reply Favorite

Date: October 11th, 2024 4:35 PM
Author: alcoholic pale home

more detail plz

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



Reply Favorite

Date: October 11th, 2024 4:37 PM
Author: Ebony faggot firefighter



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



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: comical pearly crackhouse coffee pot

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=2E#48188001)



Reply Favorite

Date: October 11th, 2024 4:41 PM
Author: indigo voyeur

do u know what a sister in law is?

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: doobsian gold striped hyena pit

he's watched too much porn

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



Reply Favorite

Date: October 11th, 2024 7:51 PM
Author: comical pearly crackhouse coffee pot

Objection, nonresponsive

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



Reply Favorite

Date: December 23rd, 2025 2:44 AM
Author: avocado low-t nursing home idea he suggested



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



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: comical pearly crackhouse coffee pot

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=2E#48188616)



Reply Favorite

Date: October 11th, 2024 8:22 PM
Author: red state hunting ground

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=2E#48188745)



Reply Favorite

Date: October 11th, 2024 4:42 PM
Author: Sadistic floppy round eye gas station

sleeping with anyone within your orbit of friends & family is insane and doomed

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2E#48188009)



Reply Favorite

Date: October 11th, 2024 4:50 PM
Author: Spruce Diverse Ceo Locale

mostly cr

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



Reply Favorite

Date: October 12th, 2024 3:21 PM
Author: flirting ocher sandwich



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



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: Chartreuse excitant church

this is exactly why I never sleep with my wife

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: doobsian gold striped hyena pit

depends on if your wife is dead or not

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Sadistic floppy round eye gas station

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

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: Drab native



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



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: Appetizing property

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

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



Reply Favorite

Date: October 11th, 2024 8:14 PM
Author: Exciting hall hominid

(martin brodeur)

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



Reply Favorite

Date: October 12th, 2024 10:56 AM
Author: White ungodly church building

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=2E#48189844)



Reply Favorite

Date: October 12th, 2024 11:38 AM
Author: Aquamarine Police Squad Knife

This. Plus they are always hugging and kissing you.

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



Reply Favorite

Date: December 23rd, 2025 6:52 AM
Author: Appetizing property



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



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: Spruce Diverse Ceo Locale

Wtf

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



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: White ungodly church building

This is my life. Constant blue balls.

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



Reply Favorite

Date: November 30th, 2025 4:44 PM
Author: alcoholic pale home



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



Reply Favorite

Date: October 12th, 2024 11:41 AM
Author: chestnut sanctuary

Is she a spicy Latina?

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: Drab native



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



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: Aquamarine Police Squad Knife

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=2E#48189964)



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: cerebral box office

180

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



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: contagious free-loading messiness



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



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: vibrant goal in life pisswyrm

twist: the sil was Catherine of aragorn

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



Reply Favorite

Date: October 12th, 2024 3:20 PM
Author: costumed station

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=2E#48190659)



Reply Favorite

Date: October 12th, 2024 3:25 PM
Author: contagious free-loading messiness



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



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: costumed station

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=2E#48190707)



Reply Favorite

Date: October 12th, 2024 3:38 PM
Author: contagious free-loading messiness



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



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: costumed station

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=2E#48191875)



Reply Favorite

Date: October 12th, 2024 11:50 AM
Author: galvanic bearded milk 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=2E#48189984)



Reply Favorite

Date: October 12th, 2024 11:52 AM
Author: irate forum

How many times do we have to go over this.

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



Reply Favorite

Date: October 12th, 2024 4:01 PM
Author: seedy liquid oxygen telephone



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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: Drab native



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



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: seedy liquid oxygen telephone



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



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: avocado low-t nursing home idea he suggested



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



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: Fragrant filthpig skinny woman



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



Reply Favorite

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



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



Reply Favorite

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



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



Reply Favorite

Date: October 12th, 2024 11:51 AM
Author: razzle-dazzle cheese-eating parlor

yes

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



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: Spruce Diverse Ceo Locale

voice of reason as always cbtp

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



Reply Favorite

Date: October 12th, 2024 11:57 AM
Author: soul-stirring canary meetinghouse

not as deranged as brother-in-law

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



Reply Favorite

Date: December 23rd, 2025 7:03 AM
Author: narrow-minded heady nibblets garrison

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=2E#49533184)