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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?
Disgusting juggernaut
  10/11/24
I dunno. What if she has a nice ass?
insanely creepy pervert
  10/11/24
more detail plz
Vigorous doctorate wagecucks
  10/11/24
...
insanely creepy pervert
  10/11/24
It probably depends on how much you hate your bio parent and...
Trip Cuckold
  10/11/24
do u know what a sister in law is?
sickened topaz principal's office
  10/11/24
he's watched too much porn
pontificating roommate
  10/11/24
Objection, nonresponsive
Trip Cuckold
  10/11/24
...
Medicated Messiness Kitty Cat
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
Trip Cuckold
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
Walnut wild site circlehead
  10/11/24
sleeping with anyone within your orbit of friends & fami...
very tactful fragrant jap
  10/11/24
mostly cr
Disgusting juggernaut
  10/11/24
...
avocado offensive nowag location
  10/12/24
this is exactly why I never sleep with my wife
Curious church building dog poop
  12/23/25
depends on if your wife is dead or not
pontificating roommate
  10/11/24
i believe this is colloquially known as "the biden rule...
very tactful fragrant jap
  10/11/24
...
ivory dingle berry
  11/30/25
only if you don't take pictures to share with us
flirting organic girlfriend
  10/11/24
(martin brodeur)
Federal flushed puppy
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
Insane Erotic Son Of Senegal
  10/12/24
This. Plus they are always hugging and kissing you.
contagious party of the first part piazza
  10/12/24
...
flirting organic girlfriend
  12/23/25
Wtf
Disgusting juggernaut
  10/12/24
This is my life. Constant blue balls.
Insane Erotic Son Of Senegal
  10/12/24
...
Vigorous doctorate wagecucks
  11/30/25
i'm married to the younger hotter sister, and the temptation...
...,,..;...,,..,..,...,,,;..,
  06/03/26
Is she a spicy Latina?
seedy space bbw
  10/12/24
...
ivory dingle berry
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
contagious party of the first part piazza
  10/12/24
180
provocative black garrison faggot firefighter
  10/12/24
...
Pink hateful plaza jew
  10/12/24
twist: the sil was Catherine of aragorn
Razzle crawly school
  10/12/24
If first brother was childless then this is classic Levirate...
Hairraiser Bright National Security Agency
  10/12/24
...
Pink hateful plaza jew
  10/12/24
He's literally the closest replacement for the guy. I can't ...
Hairraiser Bright National Security Agency
  10/12/24
...
Pink hateful plaza jew
  10/12/24
You're doing it for the purpose of having children, through ...
Hairraiser Bright National Security Agency
  10/13/24
are we talking about your wife's sister or your brother's wi...
henna arousing degenerate
  10/12/24
How many times do we have to go over this.
misanthropic mediation incel
  10/12/24
...
fantasy-prone stain theater stage
  10/12/24
...
ivory dingle berry
  11/30/25
...
fantasy-prone stain theater stage
  12/23/25
...
Medicated Messiness Kitty Cat
  12/23/25
...
Garnet spot
  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
Aromatic Lilac Station
  10/12/24
voice of reason as always cbtp
Disgusting juggernaut
  10/12/24
not as deranged as brother-in-law
Maroon Box Office
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
Racy yellow property
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: Disgusting juggernaut

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

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



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: insanely creepy pervert

I dunno. What if she has a nice ass?

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



Reply Favorite

Date: October 11th, 2024 4:35 PM
Author: Vigorous doctorate wagecucks

more detail plz

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



Reply Favorite

Date: October 11th, 2024 4:37 PM
Author: insanely creepy pervert



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



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: Trip Cuckold

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=2Reputation#48188001)



Reply Favorite

Date: October 11th, 2024 4:41 PM
Author: sickened topaz principal's office

do u know what a sister in law is?

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: pontificating roommate

he's watched too much porn

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



Reply Favorite

Date: October 11th, 2024 7:51 PM
Author: Trip Cuckold

Objection, nonresponsive

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



Reply Favorite

Date: December 23rd, 2025 2:44 AM
Author: Medicated Messiness Kitty Cat



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



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: Trip Cuckold

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=2Reputation#48188616)



Reply Favorite

Date: October 11th, 2024 8:22 PM
Author: Walnut wild site circlehead

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=2Reputation#48188745)



Reply Favorite

Date: October 11th, 2024 4:42 PM
Author: very tactful fragrant jap

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

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



Reply Favorite

Date: October 11th, 2024 4:50 PM
Author: Disgusting juggernaut

mostly cr

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



Reply Favorite

Date: October 12th, 2024 3:21 PM
Author: avocado offensive nowag location



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



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: Curious church building dog poop

this is exactly why I never sleep with my wife

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: pontificating roommate

depends on if your wife is dead or not

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: very tactful fragrant jap

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

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: ivory dingle berry



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



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: flirting organic girlfriend

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

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



Reply Favorite

Date: October 11th, 2024 8:14 PM
Author: Federal flushed puppy

(martin brodeur)

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



Reply Favorite

Date: October 12th, 2024 10:56 AM
Author: Insane Erotic Son Of Senegal

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=2Reputation#48189844)



Reply Favorite

Date: October 12th, 2024 11:38 AM
Author: contagious party of the first part piazza

This. Plus they are always hugging and kissing you.

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



Reply Favorite

Date: December 23rd, 2025 6:52 AM
Author: flirting organic girlfriend



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



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: Disgusting juggernaut

Wtf

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



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: Insane Erotic Son Of Senegal

This is my life. Constant blue balls.

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



Reply Favorite

Date: November 30th, 2025 4:44 PM
Author: Vigorous doctorate wagecucks



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



Reply Favorite

Date: October 12th, 2024 11:41 AM
Author: seedy space bbw

Is she a spicy Latina?

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: ivory dingle berry



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



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: contagious party of the first part piazza

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=2Reputation#48189964)



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: provocative black garrison faggot firefighter

180

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



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: Pink hateful plaza jew



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



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: Razzle crawly school

twist: the sil was Catherine of aragorn

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



Reply Favorite

Date: October 12th, 2024 3:20 PM
Author: Hairraiser Bright National Security Agency

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=2Reputation#48190659)



Reply Favorite

Date: October 12th, 2024 3:25 PM
Author: Pink hateful plaza jew



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



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: Hairraiser Bright National Security Agency

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=2Reputation#48190707)



Reply Favorite

Date: October 12th, 2024 3:38 PM
Author: Pink hateful plaza jew



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



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: Hairraiser Bright National Security Agency

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=2Reputation#48191875)



Reply Favorite

Date: October 12th, 2024 11:50 AM
Author: henna arousing degenerate

are we talking about your wife's sister or your brother's wife?

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2Reputation#48189984)



Reply Favorite

Date: October 12th, 2024 11:52 AM
Author: misanthropic mediation incel

How many times do we have to go over this.

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



Reply Favorite

Date: October 12th, 2024 4:01 PM
Author: fantasy-prone stain theater stage



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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: ivory dingle berry



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



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: fantasy-prone stain theater stage



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



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: Medicated Messiness Kitty Cat



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



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: Garnet spot



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



Reply Favorite

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



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



Reply Favorite

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



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



Reply Favorite

Date: October 12th, 2024 11:51 AM
Author: Aromatic Lilac Station

yes

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



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: Disgusting juggernaut

voice of reason as always cbtp

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



Reply Favorite

Date: October 12th, 2024 11:57 AM
Author: Maroon Box Office

not as deranged as brother-in-law

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



Reply Favorite

Date: December 23rd, 2025 7:03 AM
Author: Racy yellow property

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=2Reputation#49533184)