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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?
ruddy weed whacker
  10/11/24
I dunno. What if she has a nice ass?
chrome exciting theater stage police squad
  10/11/24
more detail plz
cruel-hearted tantric whorehouse cuck
  10/11/24
...
chrome exciting theater stage police squad
  10/11/24
It probably depends on how much you hate your bio parent and...
Galvanic locus toaster
  10/11/24
do u know what a sister in law is?
ruby wonderful temple windowlicker
  10/11/24
he's watched too much porn
sexy black death wish box office
  10/11/24
Objection, nonresponsive
Galvanic locus toaster
  10/11/24
...
Peach twisted orchestra pit
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
Galvanic locus toaster
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
heady overrated bawdyhouse
  10/11/24
sleeping with anyone within your orbit of friends & fami...
purple tattoo
  10/11/24
mostly cr
ruddy weed whacker
  10/11/24
...
awkward flatulent tank
  10/12/24
this is exactly why I never sleep with my wife
soggy station useless brakes
  12/23/25
depends on if your wife is dead or not
sexy black death wish box office
  10/11/24
i believe this is colloquially known as "the biden rule...
purple tattoo
  10/11/24
...
Dun nowag
  11/30/25
only if you don't take pictures to share with us
Motley public bath jap
  10/11/24
(martin brodeur)
Big gas station
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
Dark Stage
  10/12/24
This. Plus they are always hugging and kissing you.
irradiated shivering hell
  10/12/24
...
Motley public bath jap
  12/23/25
Wtf
ruddy weed whacker
  10/12/24
This is my life. Constant blue balls.
Dark Stage
  10/12/24
...
cruel-hearted tantric whorehouse cuck
  11/30/25
i'm married to the younger hotter sister, and the temptation...
...,,..;...,,..,..,...,,,;..,
  06/03/26
Is she a spicy Latina?
plum filthy electric furnace
  10/12/24
...
Dun nowag
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
irradiated shivering hell
  10/12/24
180
Yellow jet-lagged ladyboy stead
  10/12/24
...
zombie-like cordovan scourge upon the earth
  10/12/24
twist: the sil was Catherine of aragorn
cracking startling spot kitty
  10/12/24
If first brother was childless then this is classic Levirate...
Mildly autistic gaping
  10/12/24
...
zombie-like cordovan scourge upon the earth
  10/12/24
He's literally the closest replacement for the guy. I can't ...
Mildly autistic gaping
  10/12/24
...
zombie-like cordovan scourge upon the earth
  10/12/24
You're doing it for the purpose of having children, through ...
Mildly autistic gaping
  10/13/24
are we talking about your wife's sister or your brother's wi...
Opaque lay love of her life
  10/12/24
How many times do we have to go over this.
Chestnut dilemma
  10/12/24
...
Geriatric organic girlfriend
  10/12/24
...
Dun nowag
  11/30/25
...
Geriatric organic girlfriend
  12/23/25
...
Peach twisted orchestra pit
  12/23/25
...
fishy razzle national
  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
hairraiser ticket booth
  10/12/24
voice of reason as always cbtp
ruddy weed whacker
  10/12/24
not as deranged as brother-in-law
beady-eyed lilac juggernaut sex offender
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
Mint soul-stirring casino queen of the night
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: ruddy weed whacker

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: chrome exciting theater stage police squad

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: cruel-hearted tantric whorehouse cuck

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: chrome exciting theater stage police squad



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



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: Galvanic locus toaster

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: ruby wonderful temple windowlicker

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: sexy black death wish 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: Galvanic locus toaster

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: Peach twisted orchestra pit



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



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: Galvanic locus toaster

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: heady overrated bawdyhouse

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: purple tattoo

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: ruddy weed whacker

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: awkward flatulent tank



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



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: soggy station useless brakes

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: sexy black death wish 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: purple tattoo

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: Dun nowag



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



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: Motley public bath jap

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: Big gas station

(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: Dark Stage

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: irradiated shivering hell

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: Motley public bath jap



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



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: ruddy weed whacker

Wtf

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



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: Dark Stage

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: cruel-hearted tantric whorehouse cuck



(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: plum filthy electric furnace

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: Dun nowag



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



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: irradiated shivering hell

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: Yellow jet-lagged ladyboy stead

180

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



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: zombie-like cordovan scourge upon the earth



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



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: cracking startling spot kitty

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: Mildly autistic gaping

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: zombie-like cordovan scourge upon the earth



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



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: Mildly autistic gaping

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: zombie-like cordovan scourge upon the earth



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



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: Mildly autistic gaping

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: Opaque lay love of her life

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: Chestnut dilemma

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: Geriatric organic girlfriend



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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: Dun nowag



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



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: Geriatric organic girlfriend



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



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: Peach twisted orchestra pit



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



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: fishy razzle national



(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: hairraiser ticket booth

yes

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



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: ruddy weed whacker

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: beady-eyed lilac juggernaut sex offender

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: Mint soul-stirring casino queen of the night

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)