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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?
Maroon duck-like theater
  10/11/24
I dunno. What if she has a nice ass?
Infuriating Windowlicker Base
  10/11/24
more detail plz
racy red space telephone
  10/11/24
...
Infuriating Windowlicker Base
  10/11/24
It probably depends on how much you hate your bio parent and...
autistic hot native macaca
  10/11/24
do u know what a sister in law is?
Abnormal Center
  10/11/24
he's watched too much porn
Frozen Dingle Berry Meetinghouse
  10/11/24
Objection, nonresponsive
autistic hot native macaca
  10/11/24
...
filthy church faggot firefighter
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
autistic hot native macaca
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
translucent stimulating principal's office
  10/11/24
sleeping with anyone within your orbit of friends & fami...
Angry Dull Roommate
  10/11/24
mostly cr
Maroon duck-like theater
  10/11/24
...
Flushed lascivious french chef
  10/12/24
this is exactly why I never sleep with my wife
vivacious transparent stage cuckold
  12/23/25
depends on if your wife is dead or not
Frozen Dingle Berry Meetinghouse
  10/11/24
i believe this is colloquially known as "the biden rule...
Angry Dull Roommate
  10/11/24
...
Hairless piazza ape
  11/30/25
only if you don't take pictures to share with us
bateful idea he suggested set
  10/11/24
(martin brodeur)
henna stage
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
curious mahogany gas station headpube
  10/12/24
This. Plus they are always hugging and kissing you.
maize volcanic crater mother
  10/12/24
...
bateful idea he suggested set
  12/23/25
Wtf
Maroon duck-like theater
  10/12/24
This is my life. Constant blue balls.
curious mahogany gas station headpube
  10/12/24
...
racy red space telephone
  11/30/25
i'm married to the younger hotter sister, and the temptation...
...,,..;...,,..,..,...,,,;..,
  06/03/26
Is she a spicy Latina?
Pungent area
  10/12/24
...
Hairless piazza ape
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
maize volcanic crater mother
  10/12/24
180
White soul-stirring library
  10/12/24
...
Histrionic Pervert Institution
  10/12/24
twist: the sil was Catherine of aragorn
diverse degenerate
  10/12/24
If first brother was childless then this is classic Levirate...
tripping blathering dilemma
  10/12/24
...
Histrionic Pervert Institution
  10/12/24
He's literally the closest replacement for the guy. I can't ...
tripping blathering dilemma
  10/12/24
...
Histrionic Pervert Institution
  10/12/24
You're doing it for the purpose of having children, through ...
tripping blathering dilemma
  10/13/24
are we talking about your wife's sister or your brother's wi...
Confused Shaky People Who Are Hurt
  10/12/24
How many times do we have to go over this.
Provocative nofapping trailer park filthpig
  10/12/24
...
Embarrassed To The Bone Ebony Sanctuary Karate
  10/12/24
...
Hairless piazza ape
  11/30/25
...
Embarrassed To The Bone Ebony Sanctuary Karate
  12/23/25
...
filthy church faggot firefighter
  12/23/25
...
Magenta flatulent circlehead coldplay fan
  12/23/25
...
gedood persoon
  06/03/26
...
Emilio Estevez circa 2032
  06/03/26
...
Mailer Daemon
  06/03/26
...
Emilio Estevez circa 2032
  06/03/26
yes
pale aphrodisiac nibblets
  10/12/24
voice of reason as always cbtp
Maroon duck-like theater
  10/12/24
not as deranged as brother-in-law
Haunting chapel
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
tan address
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: Maroon duck-like theater

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

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



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: Infuriating Windowlicker Base

I dunno. What if she has a nice ass?

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



Reply Favorite

Date: October 11th, 2024 4:35 PM
Author: racy red space telephone

more detail plz

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



Reply Favorite

Date: October 11th, 2024 4:37 PM
Author: Infuriating Windowlicker Base



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



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: autistic hot native macaca

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:#48188001)



Reply Favorite

Date: October 11th, 2024 4:41 PM
Author: Abnormal Center

do u know what a sister in law is?

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Frozen Dingle Berry Meetinghouse

he's watched too much porn

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



Reply Favorite

Date: October 11th, 2024 7:51 PM
Author: autistic hot native macaca

Objection, nonresponsive

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



Reply Favorite

Date: December 23rd, 2025 2:44 AM
Author: filthy church faggot firefighter



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



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: autistic hot native macaca

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:#48188616)



Reply Favorite

Date: October 11th, 2024 8:22 PM
Author: translucent stimulating principal's office

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:#48188745)



Reply Favorite

Date: October 11th, 2024 4:42 PM
Author: Angry Dull Roommate

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:#48188009)



Reply Favorite

Date: October 11th, 2024 4:50 PM
Author: Maroon duck-like theater

mostly cr

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



Reply Favorite

Date: October 12th, 2024 3:21 PM
Author: Flushed lascivious french chef



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



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: vivacious transparent stage cuckold

this is exactly why I never sleep with my wife

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Frozen Dingle Berry Meetinghouse

depends on if your wife is dead or not

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Angry Dull Roommate

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

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: Hairless piazza ape



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



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: bateful idea he suggested set

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

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



Reply Favorite

Date: October 11th, 2024 8:14 PM
Author: henna stage

(martin brodeur)

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



Reply Favorite

Date: October 12th, 2024 10:56 AM
Author: curious mahogany gas station headpube

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:#48189844)



Reply Favorite

Date: October 12th, 2024 11:38 AM
Author: maize volcanic crater mother

This. Plus they are always hugging and kissing you.

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



Reply Favorite

Date: December 23rd, 2025 6:52 AM
Author: bateful idea he suggested set



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



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: Maroon duck-like theater

Wtf

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



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: curious mahogany gas station headpube

This is my life. Constant blue balls.

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



Reply Favorite

Date: November 30th, 2025 4:44 PM
Author: racy red space telephone



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



Reply Favorite

Date: June 3rd, 2026 4:32 PM
Author: ...,,..;...,,..,..,...,,,;..,


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=2:#49913429)



Reply Favorite

Date: October 12th, 2024 11:41 AM
Author: Pungent area

Is she a spicy Latina?

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: Hairless piazza ape



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



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: maize volcanic crater mother

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:#48189964)



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: White soul-stirring library

180

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



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: Histrionic Pervert Institution



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



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: diverse degenerate

twist: the sil was Catherine of aragorn

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



Reply Favorite

Date: October 12th, 2024 3:20 PM
Author: tripping blathering dilemma

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:#48190659)



Reply Favorite

Date: October 12th, 2024 3:25 PM
Author: Histrionic Pervert Institution



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



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: tripping blathering dilemma

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:#48190707)



Reply Favorite

Date: October 12th, 2024 3:38 PM
Author: Histrionic Pervert Institution



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



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: tripping blathering dilemma

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:#48191875)



Reply Favorite

Date: October 12th, 2024 11:50 AM
Author: Confused Shaky People Who Are Hurt

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:#48189984)



Reply Favorite

Date: October 12th, 2024 11:52 AM
Author: Provocative nofapping trailer park filthpig

How many times do we have to go over this.

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



Reply Favorite

Date: October 12th, 2024 4:01 PM
Author: Embarrassed To The Bone Ebony Sanctuary Karate



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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: Hairless piazza ape



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



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: Embarrassed To The Bone Ebony Sanctuary Karate



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



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: filthy church faggot firefighter



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



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: Magenta flatulent circlehead coldplay fan



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



Reply Favorite

Date: June 3rd, 2026 3:03 PM
Author: gedood persoon



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



Reply Favorite

Date: June 3rd, 2026 3:08 PM
Author: Emilio Estevez circa 2032



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



Reply Favorite

Date: June 3rd, 2026 3:20 PM
Author: Mailer Daemon



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



Reply Favorite

Date: June 3rd, 2026 4:24 PM
Author: Emilio Estevez circa 2032



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



Reply Favorite

Date: October 12th, 2024 11:51 AM
Author: pale aphrodisiac nibblets

yes

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



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: Maroon duck-like theater

voice of reason as always cbtp

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



Reply Favorite

Date: October 12th, 2024 11:57 AM
Author: Haunting chapel

not as deranged as brother-in-law

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



Reply Favorite

Date: December 23rd, 2025 7:03 AM
Author: tan address

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:#49533184)