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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?
Aromatic indian lodge persian
  10/11/24
I dunno. What if she has a nice ass?
comical macaca water buffalo
  10/11/24
more detail plz
Know-it-all topaz cruise ship
  10/11/24
...
comical macaca water buffalo
  10/11/24
It probably depends on how much you hate your bio parent and...
plum unholy incel hall
  10/11/24
do u know what a sister in law is?
Hilarious station genital piercing
  10/11/24
he's watched too much porn
galvanic school
  10/11/24
Objection, nonresponsive
plum unholy incel hall
  10/11/24
...
Rambunctious irradiated rehab
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
plum unholy incel hall
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
arousing maize yarmulke
  10/11/24
sleeping with anyone within your orbit of friends & fami...
citrine really tough guy spot
  10/11/24
mostly cr
Aromatic indian lodge persian
  10/11/24
...
vivacious hissy fit community account
  10/12/24
this is exactly why I never sleep with my wife
Racy violent marketing idea immigrant
  12/23/25
depends on if your wife is dead or not
galvanic school
  10/11/24
i believe this is colloquially known as "the biden rule...
citrine really tough guy spot
  10/11/24
...
Transparent motley cuckoldry messiness
  11/30/25
only if you don't take pictures to share with us
Startled coldplay fan orchestra pit
  10/11/24
(martin brodeur)
Jet circlehead
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
Infuriating trip heaven
  10/12/24
This. Plus they are always hugging and kissing you.
concupiscible walnut temple legend
  10/12/24
...
Startled coldplay fan orchestra pit
  12/23/25
Wtf
Aromatic indian lodge persian
  10/12/24
This is my life. Constant blue balls.
Infuriating trip heaven
  10/12/24
...
Know-it-all topaz cruise ship
  11/30/25
i'm married to the younger hotter sister, and the temptation...
...,,..;...,,..,..,...,,,;..,
  06/03/26
Is she a spicy Latina?
obsidian slimy skinny woman whorehouse
  10/12/24
...
Transparent motley cuckoldry messiness
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
concupiscible walnut temple legend
  10/12/24
180
Heady Chartreuse Address
  10/12/24
...
Amber talking dog poop field
  10/12/24
twist: the sil was Catherine of aragorn
hideous institution quadroon
  10/12/24
If first brother was childless then this is classic Levirate...
Deranged effete people who are hurt
  10/12/24
...
Amber talking dog poop field
  10/12/24
He's literally the closest replacement for the guy. I can't ...
Deranged effete people who are hurt
  10/12/24
...
Amber talking dog poop field
  10/12/24
You're doing it for the purpose of having children, through ...
Deranged effete people who are hurt
  10/13/24
are we talking about your wife's sister or your brother's wi...
Cyan laughsome goyim
  10/12/24
How many times do we have to go over this.
vermilion provocative halford lettuce
  10/12/24
...
magenta hominid
  10/12/24
...
Transparent motley cuckoldry messiness
  11/30/25
...
magenta hominid
  12/23/25
...
Rambunctious irradiated rehab
  12/23/25
...
Swashbuckling Locale Elastic Band
  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
titillating autistic juggernaut
  10/12/24
voice of reason as always cbtp
Aromatic indian lodge persian
  10/12/24
not as deranged as brother-in-law
Stimulating bawdyhouse crotch
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
Soul-stirring preventive strike clown
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: Aromatic indian lodge persian

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: comical macaca water buffalo

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: Know-it-all topaz cruise ship

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: comical macaca water buffalo



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



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: plum unholy incel hall

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: Hilarious station genital piercing

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: galvanic school

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: plum unholy incel hall

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: Rambunctious irradiated rehab



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



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: plum unholy incel hall

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: arousing maize yarmulke

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: citrine really tough guy spot

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: Aromatic indian lodge persian

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: vivacious hissy fit community account



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



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: Racy violent marketing idea immigrant

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: galvanic school

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: citrine really tough guy spot

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: Transparent motley cuckoldry messiness



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



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: Startled coldplay fan orchestra pit

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: Jet circlehead

(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: Infuriating trip heaven

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: concupiscible walnut temple legend

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: Startled coldplay fan orchestra pit



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



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: Aromatic indian lodge persian

Wtf

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



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: Infuriating trip heaven

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: Know-it-all topaz cruise ship



(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: obsidian slimy skinny woman whorehouse

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: Transparent motley cuckoldry messiness



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



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: concupiscible walnut temple legend

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: Heady Chartreuse Address

180

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



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: Amber talking dog poop field



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



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: hideous institution quadroon

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: Deranged effete people who are hurt

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: Amber talking dog poop field



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



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: Deranged effete people who are hurt

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: Amber talking dog poop field



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



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: Deranged effete people who are hurt

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: Cyan laughsome goyim

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: vermilion provocative halford lettuce

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: magenta hominid



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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: Transparent motley cuckoldry messiness



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



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: magenta hominid



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



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: Rambunctious irradiated rehab



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



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: Swashbuckling Locale Elastic Band



(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: titillating autistic juggernaut

yes

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



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: Aromatic indian lodge persian

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: Stimulating bawdyhouse crotch

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: Soul-stirring preventive strike clown

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)