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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?
buff narrow-minded piazza pocket flask
  10/11/24
I dunno. What if she has a nice ass?
Honey-headed lay french chef
  10/11/24
more detail plz
Medicated Azure Codepig
  10/11/24
...
Honey-headed lay french chef
  10/11/24
It probably depends on how much you hate your bio parent and...
Startled Metal Trust Fund Locus
  10/11/24
do u know what a sister in law is?
Very Tactful Diverse Preventive Strike
  10/11/24
he's watched too much porn
Spruce Flirting Twinkling Uncleanness Gas Station
  10/11/24
Objection, nonresponsive
Startled Metal Trust Fund Locus
  10/11/24
...
laughsome box office stain
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
Startled Metal Trust Fund Locus
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
low-t area
  10/11/24
sleeping with anyone within your orbit of friends & fami...
cocky telephone
  10/11/24
mostly cr
buff narrow-minded piazza pocket flask
  10/11/24
...
Razzle-dazzle den
  10/12/24
this is exactly why I never sleep with my wife
razzmatazz canary boiling water pistol
  12/23/25
depends on if your wife is dead or not
Spruce Flirting Twinkling Uncleanness Gas Station
  10/11/24
i believe this is colloquially known as "the biden rule...
cocky telephone
  10/11/24
...
Coral floppy center affirmative action
  11/30/25
only if you don't take pictures to share with us
domesticated incel
  10/11/24
(martin brodeur)
Duck-like nofapping range voyeur
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
Galvanic gold clown
  10/12/24
This. Plus they are always hugging and kissing you.
godawful wonderful lodge
  10/12/24
...
domesticated incel
  12/23/25
Wtf
buff narrow-minded piazza pocket flask
  10/12/24
This is my life. Constant blue balls.
Galvanic gold clown
  10/12/24
...
Medicated Azure Codepig
  11/30/25
Is she a spicy Latina?
Cruel-hearted Beta Stage Nibblets
  10/12/24
...
Coral floppy center affirmative action
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
godawful wonderful lodge
  10/12/24
180
Scarlet immigrant
  10/12/24
In middle school my wrestling coach married our hot as fuck...
Mustard indian lodge
  10/12/24
twist: the sil was Catherine of aragorn
arousing shivering mother
  10/12/24
If first brother was childless then this is classic Levirate...
yellow whorehouse round eye
  10/12/24
The first marriage was less than a year before he died Se...
Mustard indian lodge
  10/12/24
He's literally the closest replacement for the guy. I can't ...
yellow whorehouse round eye
  10/12/24
I'm not fucking my dead brothers wife. Couldn't force me at ...
Mustard indian lodge
  10/12/24
You're doing it for the purpose of having children, through ...
yellow whorehouse round eye
  10/13/24
are we talking about your wife's sister or your brother's wi...
charismatic cruise ship
  10/12/24
How many times do we have to go over this.
cerebral tripping step-uncle's house
  10/12/24
...
ivory parlour
  10/12/24
...
Coral floppy center affirmative action
  11/30/25
...
ivory parlour
  12/23/25
...
laughsome box office stain
  12/23/25
...
Bronze lascivious parlor coldplay fan
  12/23/25
yes
Lake excitant coffee pot set
  10/12/24
voice of reason as always cbtp
buff narrow-minded piazza pocket flask
  10/12/24
not as deranged as brother-in-law
Cheese-eating home wagecucks
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
sienna bespoke scourge upon the earth nursing home
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: buff narrow-minded piazza pocket flask

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

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48187983)



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: Honey-headed lay french chef

I dunno. What if she has a nice ass?

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48187985)



Reply Favorite

Date: October 11th, 2024 4:35 PM
Author: Medicated Azure Codepig

more detail plz

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48187988)



Reply Favorite

Date: October 11th, 2024 4:37 PM
Author: Honey-headed lay french chef



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48187993)



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: Startled Metal Trust Fund Locus

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\u0026show=week#48188001)



Reply Favorite

Date: October 11th, 2024 4:41 PM
Author: Very Tactful Diverse Preventive Strike

do u know what a sister in law is?

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48188004)



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Spruce Flirting Twinkling Uncleanness Gas Station

he's watched too much porn

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48188017)



Reply Favorite

Date: October 11th, 2024 7:51 PM
Author: Startled Metal Trust Fund Locus

Objection, nonresponsive

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48188617)



Reply Favorite

Date: December 23rd, 2025 2:44 AM
Author: laughsome box office stain



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#49533041)



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: Startled Metal Trust Fund Locus

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\u0026show=week#48188616)



Reply Favorite

Date: October 11th, 2024 8:22 PM
Author: low-t area

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\u0026show=week#48188745)



Reply Favorite

Date: October 11th, 2024 4:42 PM
Author: cocky telephone

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\u0026show=week#48188009)



Reply Favorite

Date: October 11th, 2024 4:50 PM
Author: buff narrow-minded piazza pocket flask

mostly cr

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48188040)



Reply Favorite

Date: October 12th, 2024 3:21 PM
Author: Razzle-dazzle den



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48190661)



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: razzmatazz canary boiling water pistol

this is exactly why I never sleep with my wife

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#49533050)



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Spruce Flirting Twinkling Uncleanness Gas Station

depends on if your wife is dead or not

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48188014)



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: cocky telephone

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

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48188018)



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: Coral floppy center affirmative action



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#49472648)



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: domesticated incel

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

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48188026)



Reply Favorite

Date: October 11th, 2024 8:14 PM
Author: Duck-like nofapping range voyeur

(martin brodeur)

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48188717)



Reply Favorite

Date: October 12th, 2024 10:56 AM
Author: Galvanic gold clown

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\u0026show=week#48189844)



Reply Favorite

Date: October 12th, 2024 11:38 AM
Author: godawful wonderful lodge

This. Plus they are always hugging and kissing you.

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48189951)



Reply Favorite

Date: December 23rd, 2025 6:52 AM
Author: domesticated incel



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#49533178)



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: buff narrow-minded piazza pocket flask

Wtf

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48190745)



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: Galvanic gold clown

This is my life. Constant blue balls.

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48190953)



Reply Favorite

Date: November 30th, 2025 4:44 PM
Author: Medicated Azure Codepig



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#49472629)



Reply Favorite

Date: October 12th, 2024 11:41 AM
Author: Cruel-hearted Beta Stage Nibblets

Is she a spicy Latina?

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48189956)



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: Coral floppy center affirmative action



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#49472649)



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: godawful wonderful lodge

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\u0026show=week#48189964)



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: Scarlet immigrant

180

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48190744)



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: Mustard indian lodge

In middle school my wrestling coach married our hot as fuck social studies teacher. Their family was old money and he owned a land development company. He was a tall af and a Chad. One night he got drunk and died by crashing off of a bridge. Literally the next week we saw her w his brother who was also a Chad but short and chubby. They married later that year. Was one of the most surreal things I've ever seen

No clue how u could fuck ur dead brothers wife or ur dead husband's brother. Especially so fast.

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48189979)



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: arousing shivering mother

twist: the sil was Catherine of aragorn

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48190647)



Reply Favorite

Date: October 12th, 2024 3:20 PM
Author: yellow whorehouse round eye

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\u0026show=week#48190659)



Reply Favorite

Date: October 12th, 2024 3:25 PM
Author: Mustard indian lodge

The first marriage was less than a year before he died

Seems insane

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48190672)



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: yellow whorehouse round eye

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\u0026show=week#48190707)



Reply Favorite

Date: October 12th, 2024 3:38 PM
Author: Mustard indian lodge

I'm not fucking my dead brothers wife. Couldn't force me at gunpoint

Seems evil af

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48190723)



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: yellow whorehouse round eye

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\u0026show=week#48191875)



Reply Favorite

Date: October 12th, 2024 11:50 AM
Author: charismatic cruise ship

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\u0026show=week#48189984)



Reply Favorite

Date: October 12th, 2024 11:52 AM
Author: cerebral tripping step-uncle's house

How many times do we have to go over this.

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48189992)



Reply Favorite

Date: October 12th, 2024 4:01 PM
Author: ivory parlour



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48190799)



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: Coral floppy center affirmative action



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#49472653)



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: ivory parlour



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#49533037)



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: laughsome box office stain



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#49533043)



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: Bronze lascivious parlor coldplay fan



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#49533170)



Reply Favorite

Date: October 12th, 2024 11:51 AM
Author: Lake excitant coffee pot set

yes

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48189990)



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: buff narrow-minded piazza pocket flask

voice of reason as always cbtp

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48190802)



Reply Favorite

Date: October 12th, 2024 11:57 AM
Author: Cheese-eating home wagecucks

not as deranged as brother-in-law

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2\u0026show=week#48190004)



Reply Favorite

Date: December 23rd, 2025 7:03 AM
Author: sienna bespoke scourge upon the earth nursing home

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\u0026show=week#49533184)