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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?
Beady-eyed mewling space
  10/11/24
I dunno. What if she has a nice ass?
Alcoholic Tattoo
  10/11/24
more detail plz
tan wonderful blood rage gaping
  10/11/24
...
Alcoholic Tattoo
  10/11/24
It probably depends on how much you hate your bio parent and...
Slippery giraffe locale
  10/11/24
do u know what a sister in law is?
greedy comical gas station
  10/11/24
he's watched too much porn
Racy whorehouse electric furnace
  10/11/24
Objection, nonresponsive
Slippery giraffe locale
  10/11/24
...
Stimulating Puce Party Of The First Part Parlor
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
Slippery giraffe locale
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
Odious Anal Personal Credit Line Tanning Salon
  10/11/24
sleeping with anyone within your orbit of friends & fami...
laughsome pit
  10/11/24
mostly cr
Beady-eyed mewling space
  10/11/24
...
bateful institution
  10/12/24
this is exactly why I never sleep with my wife
Razzle pearly sweet tailpipe hell
  12/23/25
depends on if your wife is dead or not
Racy whorehouse electric furnace
  10/11/24
i believe this is colloquially known as "the biden rule...
laughsome pit
  10/11/24
...
Galvanic round eye
  11/30/25
only if you don't take pictures to share with us
bespoke coffee pot
  10/11/24
(martin brodeur)
Sepia rebellious step-uncle's house shitlib
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
Histrionic psychic stock car
  10/12/24
This. Plus they are always hugging and kissing you.
smoky sneaky criminal toaster
  10/12/24
...
bespoke coffee pot
  12/23/25
Wtf
Beady-eyed mewling space
  10/12/24
This is my life. Constant blue balls.
Histrionic psychic stock car
  10/12/24
...
tan wonderful blood rage gaping
  11/30/25
Is she a spicy Latina?
azure spot queen of the night
  10/12/24
...
Galvanic round eye
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
smoky sneaky criminal toaster
  10/12/24
180
Haunting theater
  10/12/24
...
obsidian fear-inspiring lodge
  10/12/24
twist: the sil was Catherine of aragorn
supple center puppy
  10/12/24
If first brother was childless then this is classic Levirate...
Fantasy-prone Citrine Knife
  10/12/24
...
obsidian fear-inspiring lodge
  10/12/24
He's literally the closest replacement for the guy. I can't ...
Fantasy-prone Citrine Knife
  10/12/24
...
obsidian fear-inspiring lodge
  10/12/24
You're doing it for the purpose of having children, through ...
Fantasy-prone Citrine Knife
  10/13/24
are we talking about your wife's sister or your brother's wi...
soul-stirring chocolate voyeur
  10/12/24
How many times do we have to go over this.
Marvelous Resort
  10/12/24
...
hairless church building
  10/12/24
...
Galvanic round eye
  11/30/25
...
hairless church building
  12/23/25
...
Stimulating Puce Party Of The First Part Parlor
  12/23/25
...
Heady Garrison Candlestick Maker
  12/23/25
yes
concupiscible cobalt lay
  10/12/24
voice of reason as always cbtp
Beady-eyed mewling space
  10/12/24
not as deranged as brother-in-law
effete black woman
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
Spectacular ticket booth trump supporter
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: Beady-eyed mewling space

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: Alcoholic Tattoo

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: tan wonderful blood rage gaping

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: Alcoholic Tattoo



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



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: Slippery giraffe locale

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: greedy comical gas station

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: Racy whorehouse electric furnace

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: Slippery giraffe locale

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: Stimulating Puce Party Of The First Part Parlor



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



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: Slippery giraffe locale

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: Odious Anal Personal Credit Line Tanning Salon

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: laughsome pit

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: Beady-eyed mewling space

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: bateful institution



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



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: Razzle pearly sweet tailpipe hell

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: Racy whorehouse electric furnace

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: laughsome pit

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: Galvanic round eye



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



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: bespoke coffee pot

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: Sepia rebellious step-uncle's house shitlib

(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: Histrionic psychic stock car

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: smoky sneaky criminal toaster

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: bespoke coffee pot



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



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: Beady-eyed mewling space

Wtf

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



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: Histrionic psychic stock car

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: tan wonderful blood rage gaping



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2).#49472629)



Reply Favorite

Date: October 12th, 2024 11:41 AM
Author: azure spot queen of the night

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: Galvanic round eye



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



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: smoky sneaky criminal toaster

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: Haunting theater

180

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



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: obsidian fear-inspiring lodge



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



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: supple center puppy

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: Fantasy-prone Citrine Knife

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: obsidian fear-inspiring lodge



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



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: Fantasy-prone Citrine Knife

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: obsidian fear-inspiring lodge



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



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: Fantasy-prone Citrine Knife

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: soul-stirring chocolate voyeur

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: Marvelous Resort

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: hairless church building



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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: Galvanic round eye



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



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: hairless church building



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



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: Stimulating Puce Party Of The First Part Parlor



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



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: Heady Garrison Candlestick Maker



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



Reply Favorite

Date: October 12th, 2024 11:51 AM
Author: concupiscible cobalt lay

yes

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



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: Beady-eyed mewling space

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: effete black woman

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: Spectacular ticket booth trump supporter

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)