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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?
Glassy Whorehouse
  10/11/24
I dunno. What if she has a nice ass?
Odious bipolar becky
  10/11/24
more detail plz
Spruce laughsome shitlib
  10/11/24
...
Odious bipolar becky
  10/11/24
It probably depends on how much you hate your bio parent and...
Rough-skinned bearded coldplay fan cuckoldry
  10/11/24
do u know what a sister in law is?
Lake Wonderful Hominid
  10/11/24
he's watched too much porn
Multi-colored Lettuce Location
  10/11/24
Objection, nonresponsive
Rough-skinned bearded coldplay fan cuckoldry
  10/11/24
...
spectacular slimy really tough guy
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
Rough-skinned bearded coldplay fan cuckoldry
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
narrow-minded ceo tanning salon
  10/11/24
sleeping with anyone within your orbit of friends & fami...
Arrogant double fault
  10/11/24
mostly cr
Glassy Whorehouse
  10/11/24
...
vermilion rambunctious water buffalo digit ratio
  10/12/24
this is exactly why I never sleep with my wife
Self-centered Gaping Pit
  12/23/25
depends on if your wife is dead or not
Multi-colored Lettuce Location
  10/11/24
i believe this is colloquially known as "the biden rule...
Arrogant double fault
  10/11/24
...
free-loading know-it-all hospital psychic
  11/30/25
only if you don't take pictures to share with us
brindle sweet tailpipe site
  10/11/24
(martin brodeur)
beady-eyed toaster
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
Pearl overrated knife
  10/12/24
This. Plus they are always hugging and kissing you.
turquoise marketing idea codepig
  10/12/24
...
brindle sweet tailpipe site
  12/23/25
Wtf
Glassy Whorehouse
  10/12/24
This is my life. Constant blue balls.
Pearl overrated knife
  10/12/24
...
Spruce laughsome shitlib
  11/30/25
Is she a spicy Latina?
Erotic slap-happy ticket booth preventive strike
  10/12/24
...
free-loading know-it-all hospital psychic
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
turquoise marketing idea codepig
  10/12/24
180
nudist theater stage multi-billionaire
  10/12/24
In middle school my wrestling coach married our hot as fuck...
Mint floppy native
  10/12/24
twist: the sil was Catherine of aragorn
shaky ape
  10/12/24
If first brother was childless then this is classic Levirate...
Awkward property
  10/12/24
The first marriage was less than a year before he died Se...
Mint floppy native
  10/12/24
He's literally the closest replacement for the guy. I can't ...
Awkward property
  10/12/24
I'm not fucking my dead brothers wife. Couldn't force me at ...
Mint floppy native
  10/12/24
You're doing it for the purpose of having children, through ...
Awkward property
  10/13/24
are we talking about your wife's sister or your brother's wi...
Sexy Death Wish Heaven
  10/12/24
How many times do we have to go over this.
greedy blue mental disorder karate
  10/12/24
...
Lemon bbw dysfunction
  10/12/24
...
free-loading know-it-all hospital psychic
  11/30/25
...
Lemon bbw dysfunction
  12/23/25
...
spectacular slimy really tough guy
  12/23/25
...
alcoholic church building
  12/23/25
yes
flesh garrison
  10/12/24
voice of reason as always cbtp
Glassy Whorehouse
  10/12/24
not as deranged as brother-in-law
adventurous effete market
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
fiercely-loyal boyish senate candlestick maker
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: Glassy Whorehouse

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

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



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: Odious bipolar becky

I dunno. What if she has a nice ass?

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



Reply Favorite

Date: October 11th, 2024 4:35 PM
Author: Spruce laughsome shitlib

more detail plz

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



Reply Favorite

Date: October 11th, 2024 4:37 PM
Author: Odious bipolar becky



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



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: Rough-skinned bearded coldplay fan cuckoldry

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=2most#48188001)



Reply Favorite

Date: October 11th, 2024 4:41 PM
Author: Lake Wonderful Hominid

do u know what a sister in law is?

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Multi-colored Lettuce Location

he's watched too much porn

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



Reply Favorite

Date: October 11th, 2024 7:51 PM
Author: Rough-skinned bearded coldplay fan cuckoldry

Objection, nonresponsive

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



Reply Favorite

Date: December 23rd, 2025 2:44 AM
Author: spectacular slimy really tough guy



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



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: Rough-skinned bearded coldplay fan cuckoldry

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=2most#48188616)



Reply Favorite

Date: October 11th, 2024 8:22 PM
Author: narrow-minded ceo tanning salon

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=2most#48188745)



Reply Favorite

Date: October 11th, 2024 4:42 PM
Author: Arrogant double fault

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

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



Reply Favorite

Date: October 11th, 2024 4:50 PM
Author: Glassy Whorehouse

mostly cr

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



Reply Favorite

Date: October 12th, 2024 3:21 PM
Author: vermilion rambunctious water buffalo digit ratio



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



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: Self-centered Gaping Pit

this is exactly why I never sleep with my wife

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Multi-colored Lettuce Location

depends on if your wife is dead or not

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Arrogant double fault

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

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: free-loading know-it-all hospital psychic



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



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: brindle sweet tailpipe site

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

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



Reply Favorite

Date: October 11th, 2024 8:14 PM
Author: beady-eyed toaster

(martin brodeur)

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



Reply Favorite

Date: October 12th, 2024 10:56 AM
Author: Pearl overrated knife

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=2most#48189844)



Reply Favorite

Date: October 12th, 2024 11:38 AM
Author: turquoise marketing idea codepig

This. Plus they are always hugging and kissing you.

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



Reply Favorite

Date: December 23rd, 2025 6:52 AM
Author: brindle sweet tailpipe site



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



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: Glassy Whorehouse

Wtf

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



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: Pearl overrated knife

This is my life. Constant blue balls.

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



Reply Favorite

Date: November 30th, 2025 4:44 PM
Author: Spruce laughsome shitlib



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



Reply Favorite

Date: October 12th, 2024 11:41 AM
Author: Erotic slap-happy ticket booth preventive strike

Is she a spicy Latina?

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: free-loading know-it-all hospital psychic



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



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: turquoise marketing idea codepig

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=2most#48189964)



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: nudist theater stage multi-billionaire

180

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



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: Mint floppy native

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=2most#48189979)



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: shaky ape

twist: the sil was Catherine of aragorn

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



Reply Favorite

Date: October 12th, 2024 3:20 PM
Author: Awkward property

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=2most#48190659)



Reply Favorite

Date: October 12th, 2024 3:25 PM
Author: Mint floppy native

The first marriage was less than a year before he died

Seems insane

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



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: Awkward property

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=2most#48190707)



Reply Favorite

Date: October 12th, 2024 3:38 PM
Author: Mint floppy native

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=2most#48190723)



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: Awkward property

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=2most#48191875)



Reply Favorite

Date: October 12th, 2024 11:50 AM
Author: Sexy Death Wish Heaven

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

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



Reply Favorite

Date: October 12th, 2024 11:52 AM
Author: greedy blue mental disorder karate

How many times do we have to go over this.

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



Reply Favorite

Date: October 12th, 2024 4:01 PM
Author: Lemon bbw dysfunction



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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: free-loading know-it-all hospital psychic



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



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: Lemon bbw dysfunction



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



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: spectacular slimy really tough guy



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



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: alcoholic church building



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



Reply Favorite

Date: October 12th, 2024 11:51 AM
Author: flesh garrison

yes

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



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: Glassy Whorehouse

voice of reason as always cbtp

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



Reply Favorite

Date: October 12th, 2024 11:57 AM
Author: adventurous effete market

not as deranged as brother-in-law

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



Reply Favorite

Date: December 23rd, 2025 7:03 AM
Author: fiercely-loyal boyish senate candlestick maker

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=2most#49533184)