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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?
dashing plum university son of senegal
  10/11/24
I dunno. What if she has a nice ass?
nighttime hospital new version
  10/11/24
more detail plz
Startling Old Irish Cottage Foreskin
  10/11/24
...
nighttime hospital new version
  10/11/24
It probably depends on how much you hate your bio parent and...
jet pocket flask
  10/11/24
do u know what a sister in law is?
Spectacular Sapphire School
  10/11/24
he's watched too much porn
Bossy black woman
  10/11/24
Objection, nonresponsive
jet pocket flask
  10/11/24
...
crawly shitlib
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
jet pocket flask
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
Azure twinkling uncleanness whorehouse
  10/11/24
sleeping with anyone within your orbit of friends & fami...
Hyperventilating topaz set
  10/11/24
mostly cr
dashing plum university son of senegal
  10/11/24
...
Pea-brained amethyst theater
  10/12/24
this is exactly why I never sleep with my wife
Copper gaming laptop karate
  12/23/25
depends on if your wife is dead or not
Bossy black woman
  10/11/24
i believe this is colloquially known as "the biden rule...
Hyperventilating topaz set
  10/11/24
...
razzle-dazzle orange address indirect expression
  11/30/25
only if you don't take pictures to share with us
black public bath
  10/11/24
(martin brodeur)
cruel-hearted vigorous puppy
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
Pale Messiness
  10/12/24
This. Plus they are always hugging and kissing you.
Fuchsia Shrine Useless Brakes
  10/12/24
...
black public bath
  12/23/25
Wtf
dashing plum university son of senegal
  10/12/24
This is my life. Constant blue balls.
Pale Messiness
  10/12/24
...
Startling Old Irish Cottage Foreskin
  11/30/25
i'm married to the younger hotter sister, and the temptation...
Translucent Effete Abode Travel Guidebook
  06/03/26
Is she a spicy Latina?
Motley Blood Rage
  10/12/24
...
razzle-dazzle orange address indirect expression
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
Fuchsia Shrine Useless Brakes
  10/12/24
180
laughsome violent step-uncle's house dog poop
  10/12/24
...
violent obsidian skinny woman range
  10/12/24
twist: the sil was Catherine of aragorn
lake principal's office
  10/12/24
If first brother was childless then this is classic Levirate...
Transparent orchestra pit
  10/12/24
...
violent obsidian skinny woman range
  10/12/24
He's literally the closest replacement for the guy. I can't ...
Transparent orchestra pit
  10/12/24
...
violent obsidian skinny woman range
  10/12/24
You're doing it for the purpose of having children, through ...
Transparent orchestra pit
  10/13/24
are we talking about your wife's sister or your brother's wi...
Lemon cruise ship partner
  10/12/24
How many times do we have to go over this.
arrogant cyan pit doctorate
  10/12/24
...
stirring round eye
  10/12/24
...
razzle-dazzle orange address indirect expression
  11/30/25
...
stirring round eye
  12/23/25
...
crawly shitlib
  12/23/25
...
Slate Lascivious Ratface
  12/23/25
...
stirring round eye
  06/03/26
...
brass exciting weed whacker site
  06/03/26
...
Charcoal Fiercely-loyal National Security Agency
  06/03/26
...
brass exciting weed whacker site
  06/03/26
yes
Pink Casino Mental Disorder
  10/12/24
voice of reason as always cbtp
dashing plum university son of senegal
  10/12/24
not as deranged as brother-in-law
Costumed Idiot Property
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
demanding codepig
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: dashing plum university son of senegal

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

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



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: nighttime hospital new version

I dunno. What if she has a nice ass?

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



Reply Favorite

Date: October 11th, 2024 4:35 PM
Author: Startling Old Irish Cottage Foreskin

more detail plz

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



Reply Favorite

Date: October 11th, 2024 4:37 PM
Author: nighttime hospital new version



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



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: jet pocket flask

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=2Vannesa#48188001)



Reply Favorite

Date: October 11th, 2024 4:41 PM
Author: Spectacular Sapphire School

do u know what a sister in law is?

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Bossy black woman

he's watched too much porn

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



Reply Favorite

Date: October 11th, 2024 7:51 PM
Author: jet pocket flask

Objection, nonresponsive

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



Reply Favorite

Date: December 23rd, 2025 2:44 AM
Author: crawly shitlib



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



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: jet pocket flask

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=2Vannesa#48188616)



Reply Favorite

Date: October 11th, 2024 8:22 PM
Author: Azure twinkling uncleanness whorehouse

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=2Vannesa#48188745)



Reply Favorite

Date: October 11th, 2024 4:42 PM
Author: Hyperventilating topaz set

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

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



Reply Favorite

Date: October 11th, 2024 4:50 PM
Author: dashing plum university son of senegal

mostly cr

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



Reply Favorite

Date: October 12th, 2024 3:21 PM
Author: Pea-brained amethyst theater



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



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: Copper gaming laptop karate

this is exactly why I never sleep with my wife

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Bossy black woman

depends on if your wife is dead or not

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Hyperventilating topaz set

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

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: razzle-dazzle orange address indirect expression



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



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: black public bath

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

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



Reply Favorite

Date: October 11th, 2024 8:14 PM
Author: cruel-hearted vigorous puppy

(martin brodeur)

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



Reply Favorite

Date: October 12th, 2024 10:56 AM
Author: Pale Messiness

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=2Vannesa#48189844)



Reply Favorite

Date: October 12th, 2024 11:38 AM
Author: Fuchsia Shrine Useless Brakes

This. Plus they are always hugging and kissing you.

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



Reply Favorite

Date: December 23rd, 2025 6:52 AM
Author: black public bath



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



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: dashing plum university son of senegal

Wtf

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



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: Pale Messiness

This is my life. Constant blue balls.

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



Reply Favorite

Date: November 30th, 2025 4:44 PM
Author: Startling Old Irish Cottage Foreskin



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



Reply Favorite

Date: June 3rd, 2026 4:32 PM
Author: Translucent Effete Abode Travel Guidebook

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=2Vannesa#49913429)



Reply Favorite

Date: October 12th, 2024 11:41 AM
Author: Motley Blood Rage

Is she a spicy Latina?

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: razzle-dazzle orange address indirect expression



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



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: Fuchsia Shrine Useless Brakes

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=2Vannesa#48189964)



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: laughsome violent step-uncle's house dog poop

180

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



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: violent obsidian skinny woman range



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



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: lake principal's office

twist: the sil was Catherine of aragorn

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



Reply Favorite

Date: October 12th, 2024 3:20 PM
Author: Transparent orchestra pit

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=2Vannesa#48190659)



Reply Favorite

Date: October 12th, 2024 3:25 PM
Author: violent obsidian skinny woman range



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



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: Transparent orchestra pit

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=2Vannesa#48190707)



Reply Favorite

Date: October 12th, 2024 3:38 PM
Author: violent obsidian skinny woman range



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



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: Transparent orchestra pit

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=2Vannesa#48191875)



Reply Favorite

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

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

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



Reply Favorite

Date: October 12th, 2024 11:52 AM
Author: arrogant cyan pit doctorate

How many times do we have to go over this.

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



Reply Favorite

Date: October 12th, 2024 4:01 PM
Author: stirring round eye



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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: razzle-dazzle orange address indirect expression



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



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: stirring round eye



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



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: crawly shitlib



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



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: Slate Lascivious Ratface



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



Reply Favorite

Date: June 3rd, 2026 3:03 PM
Author: stirring round eye



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2Vannesa#49913228)



Reply Favorite

Date: June 3rd, 2026 3:08 PM
Author: brass exciting weed whacker site



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



Reply Favorite

Date: June 3rd, 2026 3:20 PM
Author: Charcoal Fiercely-loyal National Security Agency



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2Vannesa#49913261)



Reply Favorite

Date: June 3rd, 2026 4:24 PM
Author: brass exciting weed whacker site



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



Reply Favorite

Date: October 12th, 2024 11:51 AM
Author: Pink Casino Mental Disorder

yes

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



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: dashing plum university son of senegal

voice of reason as always cbtp

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



Reply Favorite

Date: October 12th, 2024 11:57 AM
Author: Costumed Idiot Property

not as deranged as brother-in-law

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



Reply Favorite

Date: December 23rd, 2025 7:03 AM
Author: demanding codepig

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=2Vannesa#49533184)