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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?
laughsome antidepressant drug
  10/11/24
I dunno. What if she has a nice ass?
slap-happy office
  10/11/24
more detail plz
overrated jet parlor circlehead
  10/11/24
...
slap-happy office
  10/11/24
It probably depends on how much you hate your bio parent and...
Garnet Pozpig Stain
  10/11/24
do u know what a sister in law is?
erotic toaster
  10/11/24
he's watched too much porn
multi-colored elastic band
  10/11/24
Objection, nonresponsive
Garnet Pozpig Stain
  10/11/24
...
diverse sandwich ticket booth
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
Garnet Pozpig Stain
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
coral rigor
  10/11/24
sleeping with anyone within your orbit of friends & fami...
charismatic magical kitty cat
  10/11/24
mostly cr
laughsome antidepressant drug
  10/11/24
...
histrionic saffron new version hell
  10/12/24
this is exactly why I never sleep with my wife
electric pocket flask field
  12/23/25
depends on if your wife is dead or not
multi-colored elastic band
  10/11/24
i believe this is colloquially known as "the biden rule...
charismatic magical kitty cat
  10/11/24
...
Silver cuckoldry
  11/30/25
only if you don't take pictures to share with us
heady ultramarine chad sanctuary
  10/11/24
(martin brodeur)
Fighting senate persian
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
poppy godawful athletic conference
  10/12/24
This. Plus they are always hugging and kissing you.
jet-lagged home
  10/12/24
...
heady ultramarine chad sanctuary
  12/23/25
Wtf
laughsome antidepressant drug
  10/12/24
This is my life. Constant blue balls.
poppy godawful athletic conference
  10/12/24
...
overrated jet parlor circlehead
  11/30/25
Is she a spicy Latina?
Anal Passionate Half-breed Dilemma
  10/12/24
...
Silver cuckoldry
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
jet-lagged home
  10/12/24
180
boyish pearly pit mother
  10/12/24
...
Indigo Blathering Windowlicker Mad Cow Disease
  10/12/24
twist: the sil was Catherine of aragorn
vengeful iridescent dingle berry
  10/12/24
If first brother was childless then this is classic Levirate...
Angry Theatre Death Wish
  10/12/24
...
Indigo Blathering Windowlicker Mad Cow Disease
  10/12/24
He's literally the closest replacement for the guy. I can't ...
Angry Theatre Death Wish
  10/12/24
...
Indigo Blathering Windowlicker Mad Cow Disease
  10/12/24
You're doing it for the purpose of having children, through ...
Angry Theatre Death Wish
  10/13/24
are we talking about your wife's sister or your brother's wi...
Thriller halford
  10/12/24
How many times do we have to go over this.
talented disturbing plaza newt
  10/12/24
...
Razzle-dazzle Tripping Menage
  10/12/24
...
Silver cuckoldry
  11/30/25
...
Razzle-dazzle Tripping Menage
  12/23/25
...
diverse sandwich ticket booth
  12/23/25
...
Aquamarine Prole
  12/23/25
yes
exhilarant karate organic girlfriend
  10/12/24
voice of reason as always cbtp
laughsome antidepressant drug
  10/12/24
not as deranged as brother-in-law
Spruce trip voyeur legal warrant
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
know-it-all old irish cottage
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: laughsome antidepressant drug

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: slap-happy office

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: overrated jet parlor circlehead

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: slap-happy office



(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: Garnet Pozpig Stain

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: erotic toaster

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: multi-colored elastic band

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: Garnet Pozpig Stain

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: diverse sandwich ticket booth



(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: Garnet Pozpig Stain

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: coral rigor

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: charismatic magical kitty cat

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: laughsome antidepressant drug

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: histrionic saffron new version hell



(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: electric pocket flask field

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: multi-colored elastic band

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: charismatic magical kitty cat

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: Silver cuckoldry



(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: heady ultramarine chad sanctuary

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: Fighting senate persian

(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: poppy godawful athletic conference

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: jet-lagged home

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: heady ultramarine chad sanctuary



(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: laughsome antidepressant drug

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: poppy godawful athletic conference

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: overrated jet parlor circlehead



(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: Anal Passionate Half-breed Dilemma

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: Silver cuckoldry



(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: jet-lagged home

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: boyish pearly pit mother

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: Indigo Blathering Windowlicker Mad Cow Disease



(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: vengeful iridescent dingle berry

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: Angry Theatre Death Wish

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: Indigo Blathering Windowlicker Mad Cow Disease



(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: Angry Theatre Death Wish

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: Indigo Blathering Windowlicker Mad Cow Disease



(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: Angry Theatre Death Wish

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: Thriller halford

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: talented disturbing plaza newt

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: Razzle-dazzle Tripping Menage



(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: Silver cuckoldry



(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: Razzle-dazzle Tripping Menage



(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: diverse sandwich ticket booth



(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: Aquamarine Prole



(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: exhilarant karate organic girlfriend

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: laughsome antidepressant drug

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: Spruce trip voyeur legal warrant

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: know-it-all old irish cottage

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)