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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?
Ruby 180 skinny woman hominid
  10/11/24
I dunno. What if she has a nice ass?
wild elastic band cruise ship
  10/11/24
more detail plz
thriller brunch juggernaut
  10/11/24
...
wild elastic band cruise ship
  10/11/24
It probably depends on how much you hate your bio parent and...
Brass Arousing Sanctuary
  10/11/24
do u know what a sister in law is?
Cobalt Bisexual Mood
  10/11/24
he's watched too much porn
razzle-dazzle shrine
  10/11/24
Objection, nonresponsive
Brass Arousing Sanctuary
  10/11/24
...
Curious national becky
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
Brass Arousing Sanctuary
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
Sable School Cafeteria Mental Disorder
  10/11/24
sleeping with anyone within your orbit of friends & fami...
Rough-skinned Knife Nibblets
  10/11/24
mostly cr
Ruby 180 skinny woman hominid
  10/11/24
...
Motley Senate Antidepressant Drug
  10/12/24
this is exactly why I never sleep with my wife
sick stag film laser beams
  12/23/25
depends on if your wife is dead or not
razzle-dazzle shrine
  10/11/24
i believe this is colloquially known as "the biden rule...
Rough-skinned Knife Nibblets
  10/11/24
...
boyish base
  11/30/25
only if you don't take pictures to share with us
high-end foreskin
  10/11/24
(martin brodeur)
Cruel-hearted indirect expression
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
histrionic hairless boistinker church
  10/12/24
This. Plus they are always hugging and kissing you.
heady theatre corn cake
  10/12/24
...
high-end foreskin
  12/23/25
Wtf
Ruby 180 skinny woman hominid
  10/12/24
This is my life. Constant blue balls.
histrionic hairless boistinker church
  10/12/24
...
thriller brunch juggernaut
  11/30/25
Is she a spicy Latina?
titillating bright location wagecucks
  10/12/24
...
boyish base
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
heady theatre corn cake
  10/12/24
180
lascivious center
  10/12/24
...
Cream kink-friendly public bath crotch
  10/12/24
twist: the sil was Catherine of aragorn
nofapping philosopher-king
  10/12/24
If first brother was childless then this is classic Levirate...
provocative property
  10/12/24
...
Cream kink-friendly public bath crotch
  10/12/24
He's literally the closest replacement for the guy. I can't ...
provocative property
  10/12/24
...
Cream kink-friendly public bath crotch
  10/12/24
You're doing it for the purpose of having children, through ...
provocative property
  10/13/24
are we talking about your wife's sister or your brother's wi...
Cerebral Parlor
  10/12/24
How many times do we have to go over this.
impertinent garnet forum
  10/12/24
...
appetizing ivory point double fault
  10/12/24
...
boyish base
  11/30/25
...
appetizing ivory point double fault
  12/23/25
...
Curious national becky
  12/23/25
...
Mentally Impaired Friendly Grandma
  12/23/25
yes
Maize Institution
  10/12/24
voice of reason as always cbtp
Ruby 180 skinny woman hominid
  10/12/24
not as deranged as brother-in-law
out-of-control self-absorbed persian
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
alcoholic box office kitty cat
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: Ruby 180 skinny woman hominid

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

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



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: wild elastic band cruise ship

I dunno. What if she has a nice ass?

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



Reply Favorite

Date: October 11th, 2024 4:35 PM
Author: thriller brunch juggernaut

more detail plz

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



Reply Favorite

Date: October 11th, 2024 4:37 PM
Author: wild elastic band cruise ship



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



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: Brass Arousing Sanctuary

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=2id.#48188001)



Reply Favorite

Date: October 11th, 2024 4:41 PM
Author: Cobalt Bisexual Mood

do u know what a sister in law is?

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: razzle-dazzle shrine

he's watched too much porn

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



Reply Favorite

Date: October 11th, 2024 7:51 PM
Author: Brass Arousing Sanctuary

Objection, nonresponsive

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



Reply Favorite

Date: December 23rd, 2025 2:44 AM
Author: Curious national becky



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



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: Brass Arousing Sanctuary

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=2id.#48188616)



Reply Favorite

Date: October 11th, 2024 8:22 PM
Author: Sable School Cafeteria Mental Disorder

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=2id.#48188745)



Reply Favorite

Date: October 11th, 2024 4:42 PM
Author: Rough-skinned Knife Nibblets

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

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



Reply Favorite

Date: October 11th, 2024 4:50 PM
Author: Ruby 180 skinny woman hominid

mostly cr

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



Reply Favorite

Date: October 12th, 2024 3:21 PM
Author: Motley Senate Antidepressant Drug



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



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: sick stag film laser beams

this is exactly why I never sleep with my wife

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: razzle-dazzle shrine

depends on if your wife is dead or not

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Rough-skinned Knife Nibblets

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

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: boyish base



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



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: high-end foreskin

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

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



Reply Favorite

Date: October 11th, 2024 8:14 PM
Author: Cruel-hearted indirect expression

(martin brodeur)

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



Reply Favorite

Date: October 12th, 2024 10:56 AM
Author: histrionic hairless boistinker church

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=2id.#48189844)



Reply Favorite

Date: October 12th, 2024 11:38 AM
Author: heady theatre corn cake

This. Plus they are always hugging and kissing you.

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



Reply Favorite

Date: December 23rd, 2025 6:52 AM
Author: high-end foreskin



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



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: Ruby 180 skinny woman hominid

Wtf

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



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: histrionic hairless boistinker church

This is my life. Constant blue balls.

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



Reply Favorite

Date: November 30th, 2025 4:44 PM
Author: thriller brunch juggernaut



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



Reply Favorite

Date: October 12th, 2024 11:41 AM
Author: titillating bright location wagecucks

Is she a spicy Latina?

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: boyish base



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



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: heady theatre corn cake

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=2id.#48189964)



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: lascivious center

180

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



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: Cream kink-friendly public bath crotch



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



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: nofapping philosopher-king

twist: the sil was Catherine of aragorn

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



Reply Favorite

Date: October 12th, 2024 3:20 PM
Author: provocative 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=2id.#48190659)



Reply Favorite

Date: October 12th, 2024 3:25 PM
Author: Cream kink-friendly public bath crotch



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



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: provocative 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=2id.#48190707)



Reply Favorite

Date: October 12th, 2024 3:38 PM
Author: Cream kink-friendly public bath crotch



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



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: provocative 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=2id.#48191875)



Reply Favorite

Date: October 12th, 2024 11:50 AM
Author: Cerebral Parlor

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

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



Reply Favorite

Date: October 12th, 2024 11:52 AM
Author: impertinent garnet forum

How many times do we have to go over this.

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



Reply Favorite

Date: October 12th, 2024 4:01 PM
Author: appetizing ivory point double fault



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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: boyish base



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



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: appetizing ivory point double fault



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



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: Curious national becky



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



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: Mentally Impaired Friendly Grandma



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



Reply Favorite

Date: October 12th, 2024 11:51 AM
Author: Maize Institution

yes

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



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: Ruby 180 skinny woman hominid

voice of reason as always cbtp

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



Reply Favorite

Date: October 12th, 2024 11:57 AM
Author: out-of-control self-absorbed persian

not as deranged as brother-in-law

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



Reply Favorite

Date: December 23rd, 2025 7:03 AM
Author: alcoholic box office kitty cat

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=2id.#49533184)