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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 native
  10/11/24
I dunno. What if she has a nice ass?
insane exhilarant liquid oxygen
  10/11/24
more detail plz
Marvelous lay
  10/11/24
...
insane exhilarant liquid oxygen
  10/11/24
It probably depends on how much you hate your bio parent and...
Sexy geriatric corn cake
  10/11/24
do u know what a sister in law is?
Impressive hairraiser garrison sandwich
  10/11/24
he's watched too much porn
mildly autistic irate heaven
  10/11/24
Objection, nonresponsive
Sexy geriatric corn cake
  10/11/24
...
cheese-eating clear property
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
Sexy geriatric corn cake
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
Wonderful dilemma
  10/11/24
sleeping with anyone within your orbit of friends & fami...
Trip Parlour
  10/11/24
mostly cr
Disgusting native
  10/11/24
...
anal whorehouse
  10/12/24
this is exactly why I never sleep with my wife
frozen principal's office goyim
  12/23/25
depends on if your wife is dead or not
mildly autistic irate heaven
  10/11/24
i believe this is colloquially known as "the biden rule...
Trip Parlour
  10/11/24
...
bipolar fantasy-prone school
  11/30/25
only if you don't take pictures to share with us
Henna Home Nibblets
  10/11/24
(martin brodeur)
talented maize persian azn
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
Bright Business Firm
  10/12/24
This. Plus they are always hugging and kissing you.
Passionate tank
  10/12/24
...
Henna Home Nibblets
  12/23/25
Wtf
Disgusting native
  10/12/24
This is my life. Constant blue balls.
Bright Business Firm
  10/12/24
...
Marvelous lay
  11/30/25
Is she a spicy Latina?
yellow step-uncle's house
  10/12/24
...
bipolar fantasy-prone school
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
Passionate tank
  10/12/24
180
Nofapping Market Ladyboy
  10/12/24
...
ivory karate
  10/12/24
twist: the sil was Catherine of aragorn
Pontificating white son of senegal
  10/12/24
If first brother was childless then this is classic Levirate...
Coiffed potus
  10/12/24
...
ivory karate
  10/12/24
He's literally the closest replacement for the guy. I can't ...
Coiffed potus
  10/12/24
...
ivory karate
  10/12/24
You're doing it for the purpose of having children, through ...
Coiffed potus
  10/13/24
are we talking about your wife's sister or your brother's wi...
bull headed ticket booth organic girlfriend
  10/12/24
How many times do we have to go over this.
Olive internet-worthy theatre
  10/12/24
...
french motley house
  10/12/24
...
bipolar fantasy-prone school
  11/30/25
...
french motley house
  12/23/25
...
cheese-eating clear property
  12/23/25
...
Insanely creepy flushed forum
  12/23/25
yes
Rose location wrinkle
  10/12/24
voice of reason as always cbtp
Disgusting native
  10/12/24
not as deranged as brother-in-law
beady-eyed cuckoldry
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
Contagious garnet pozpig
  12/23/25


Poast new message in this thread



Reply Favorite

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

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

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



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: insane exhilarant liquid oxygen

I dunno. What if she has a nice ass?

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



Reply Favorite

Date: October 11th, 2024 4:35 PM
Author: Marvelous lay

more detail plz

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



Reply Favorite

Date: October 11th, 2024 4:37 PM
Author: insane exhilarant liquid oxygen



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



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: Sexy geriatric corn cake

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/en-en#48188001)



Reply Favorite

Date: October 11th, 2024 4:41 PM
Author: Impressive hairraiser garrison sandwich

do u know what a sister in law is?

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: mildly autistic irate heaven

he's watched too much porn

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



Reply Favorite

Date: October 11th, 2024 7:51 PM
Author: Sexy geriatric corn cake

Objection, nonresponsive

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



Reply Favorite

Date: December 23rd, 2025 2:44 AM
Author: cheese-eating clear property



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



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: Sexy geriatric corn cake

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/en-en#48188616)



Reply Favorite

Date: October 11th, 2024 8:22 PM
Author: Wonderful dilemma

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/en-en#48188745)



Reply Favorite

Date: October 11th, 2024 4:42 PM
Author: Trip Parlour

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/en-en#48188009)



Reply Favorite

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

mostly cr

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



Reply Favorite

Date: October 12th, 2024 3:21 PM
Author: anal whorehouse



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



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: frozen principal's office goyim

this is exactly why I never sleep with my wife

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: mildly autistic irate heaven

depends on if your wife is dead or not

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Trip Parlour

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

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: bipolar fantasy-prone school



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



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: Henna Home Nibblets

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

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



Reply Favorite

Date: October 11th, 2024 8:14 PM
Author: talented maize persian azn

(martin brodeur)

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



Reply Favorite

Date: October 12th, 2024 10:56 AM
Author: Bright Business Firm

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/en-en#48189844)



Reply Favorite

Date: October 12th, 2024 11:38 AM
Author: Passionate tank

This. Plus they are always hugging and kissing you.

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



Reply Favorite

Date: December 23rd, 2025 6:52 AM
Author: Henna Home Nibblets



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



Reply Favorite

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

Wtf

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



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: Bright Business Firm

This is my life. Constant blue balls.

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



Reply Favorite

Date: November 30th, 2025 4:44 PM
Author: Marvelous lay



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



Reply Favorite

Date: October 12th, 2024 11:41 AM
Author: yellow step-uncle's house

Is she a spicy Latina?

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: bipolar fantasy-prone school



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



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: Passionate tank

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/en-en#48189964)



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: Nofapping Market Ladyboy

180

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



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: ivory karate



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



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: Pontificating white son of senegal

twist: the sil was Catherine of aragorn

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



Reply Favorite

Date: October 12th, 2024 3:20 PM
Author: Coiffed potus

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/en-en#48190659)



Reply Favorite

Date: October 12th, 2024 3:25 PM
Author: ivory karate



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



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: Coiffed potus

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/en-en#48190707)



Reply Favorite

Date: October 12th, 2024 3:38 PM
Author: ivory karate



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



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: Coiffed potus

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/en-en#48191875)



Reply Favorite

Date: October 12th, 2024 11:50 AM
Author: bull headed ticket booth organic girlfriend

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/en-en#48189984)



Reply Favorite

Date: October 12th, 2024 11:52 AM
Author: Olive internet-worthy theatre

How many times do we have to go over this.

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



Reply Favorite

Date: October 12th, 2024 4:01 PM
Author: french motley house



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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: bipolar fantasy-prone school



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



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: french motley house



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



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: cheese-eating clear property



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



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: Insanely creepy flushed forum



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



Reply Favorite

Date: October 12th, 2024 11:51 AM
Author: Rose location wrinkle

yes

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



Reply Favorite

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

voice of reason as always cbtp

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



Reply Favorite

Date: October 12th, 2024 11:57 AM
Author: beady-eyed cuckoldry

not as deranged as brother-in-law

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



Reply Favorite

Date: December 23rd, 2025 7:03 AM
Author: Contagious garnet pozpig

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/en-en#49533184)