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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 house-broken tank ratface
  10/11/24
I dunno. What if she has a nice ass?
spectacular gay personal credit line
  10/11/24
more detail plz
concupiscible bespoke cuckold
  10/11/24
...
spectacular gay personal credit line
  10/11/24
It probably depends on how much you hate your bio parent and...
coral corn cake nursing home
  10/11/24
do u know what a sister in law is?
Cyan big-titted pistol
  10/11/24
he's watched too much porn
Poppy sexy business firm toaster
  10/11/24
Objection, nonresponsive
coral corn cake nursing home
  10/11/24
...
Ruby pozpig step-uncle's house
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
coral corn cake nursing home
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
Histrionic library
  10/11/24
sleeping with anyone within your orbit of friends & fami...
Boyish low-t point gunner
  10/11/24
mostly cr
glassy house-broken tank ratface
  10/11/24
...
Demanding crystalline trailer park
  10/12/24
this is exactly why I never sleep with my wife
primrose cerebral haunted graveyard hall
  12/23/25
depends on if your wife is dead or not
Poppy sexy business firm toaster
  10/11/24
i believe this is colloquially known as "the biden rule...
Boyish low-t point gunner
  10/11/24
...
odious erotic generalized bond
  11/30/25
only if you don't take pictures to share with us
Aromatic Hairless Crackhouse Persian
  10/11/24
(martin brodeur)
Anal soggy legend
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
navy corner
  10/12/24
This. Plus they are always hugging and kissing you.
fragrant locus juggernaut
  10/12/24
...
Aromatic Hairless Crackhouse Persian
  12/23/25
Wtf
glassy house-broken tank ratface
  10/12/24
This is my life. Constant blue balls.
navy corner
  10/12/24
...
concupiscible bespoke cuckold
  11/30/25
i'm married to the younger hotter sister, and the temptation...
...,,..;...,,..,..,...,,,;..,
  06/03/26
Is she a spicy Latina?
mind-boggling incel
  10/12/24
...
odious erotic generalized bond
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
fragrant locus juggernaut
  10/12/24
180
twinkling marketing idea rigor
  10/12/24
...
adventurous mahogany weed whacker ceo
  10/12/24
twist: the sil was Catherine of aragorn
Fantasy-prone hunting ground garrison
  10/12/24
If first brother was childless then this is classic Levirate...
snowy laughsome famous landscape painting travel guidebook
  10/12/24
...
adventurous mahogany weed whacker ceo
  10/12/24
He's literally the closest replacement for the guy. I can't ...
snowy laughsome famous landscape painting travel guidebook
  10/12/24
...
adventurous mahogany weed whacker ceo
  10/12/24
You're doing it for the purpose of having children, through ...
snowy laughsome famous landscape painting travel guidebook
  10/13/24
are we talking about your wife's sister or your brother's wi...
Disrespectful Iridescent Milk Keepsake Machete
  10/12/24
How many times do we have to go over this.
spruce exhilarant fanboi private investor
  10/12/24
...
purple curious community account
  10/12/24
...
odious erotic generalized bond
  11/30/25
...
purple curious community account
  12/23/25
...
Ruby pozpig step-uncle's house
  12/23/25
...
stubborn location volcanic crater
  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
Sticky aquamarine ticket booth
  10/12/24
voice of reason as always cbtp
glassy house-broken tank ratface
  10/12/24
not as deranged as brother-in-law
Fuchsia death wish public bath
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
bearded hateful lay
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: glassy house-broken tank ratface

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: spectacular gay personal credit line

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: concupiscible bespoke cuckold

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: spectacular gay personal credit line



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



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: coral corn cake nursing home

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: Cyan big-titted pistol

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: Poppy sexy business firm toaster

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: coral corn cake nursing home

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: Ruby pozpig step-uncle's house



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



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: coral corn cake nursing home

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: Histrionic library

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: Boyish low-t point gunner

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: glassy house-broken tank ratface

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: Demanding crystalline trailer park



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



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: primrose cerebral haunted graveyard hall

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: Poppy sexy business firm toaster

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: Boyish low-t point gunner

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: odious erotic generalized bond



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



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: Aromatic Hairless Crackhouse Persian

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: Anal soggy legend

(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: navy corner

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: fragrant locus juggernaut

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: Aromatic Hairless Crackhouse Persian



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



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: glassy house-broken tank ratface

Wtf

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



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: navy corner

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: concupiscible bespoke cuckold



(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: mind-boggling incel

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: odious erotic generalized bond



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



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: fragrant locus juggernaut

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: twinkling marketing idea rigor

180

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



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: adventurous mahogany weed whacker ceo



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



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: Fantasy-prone hunting ground garrison

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: snowy laughsome famous landscape painting travel guidebook

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: adventurous mahogany weed whacker ceo



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



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: snowy laughsome famous landscape painting travel guidebook

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: adventurous mahogany weed whacker ceo



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



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: snowy laughsome famous landscape painting travel guidebook

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: Disrespectful Iridescent Milk Keepsake Machete

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: spruce exhilarant fanboi private investor

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: purple curious community account



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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: odious erotic generalized bond



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



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: purple curious community account



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



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: Ruby pozpig step-uncle's house



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



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: stubborn location volcanic crater



(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: Sticky aquamarine ticket booth

yes

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



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: glassy house-broken tank ratface

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: Fuchsia death wish public bath

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: bearded hateful lay

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)