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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?
aphrodisiac pistol temple
  10/11/24
I dunno. What if she has a nice ass?
crawly striped hyena persian
  10/11/24
more detail plz
Jet laughsome whorehouse stain
  10/11/24
...
crawly striped hyena persian
  10/11/24
It probably depends on how much you hate your bio parent and...
cocky police squad parlour
  10/11/24
do u know what a sister in law is?
yapping market
  10/11/24
he's watched too much porn
Dashing mediation
  10/11/24
Objection, nonresponsive
cocky police squad parlour
  10/11/24
...
Green hell gaping
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
cocky police squad parlour
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
electric set
  10/11/24
sleeping with anyone within your orbit of friends & fami...
stimulating trailer park selfie
  10/11/24
mostly cr
aphrodisiac pistol temple
  10/11/24
...
lake hall
  10/12/24
this is exactly why I never sleep with my wife
Dead Vivacious Resort Private Investor
  12/23/25
depends on if your wife is dead or not
Dashing mediation
  10/11/24
i believe this is colloquially known as "the biden rule...
stimulating trailer park selfie
  10/11/24
...
purple cowardly den pozpig
  11/30/25
only if you don't take pictures to share with us
Emerald Azn Field
  10/11/24
(martin brodeur)
mischievous zombie-like orchestra pit
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
Vermilion contagious idiot
  10/12/24
This. Plus they are always hugging and kissing you.
Rough-skinned pit
  10/12/24
...
Emerald Azn Field
  12/23/25
Wtf
aphrodisiac pistol temple
  10/12/24
This is my life. Constant blue balls.
Vermilion contagious idiot
  10/12/24
...
Jet laughsome whorehouse stain
  11/30/25
i'm married to the younger hotter sister, and the temptation...
...,,..;...,,..,..,...,,,;..,
  06/03/26
Is she a spicy Latina?
Irate parlor reading party
  10/12/24
...
purple cowardly den pozpig
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
Rough-skinned pit
  10/12/24
180
Sepia Sneaky Criminal Sweet Tailpipe
  10/12/24
...
shimmering motley circlehead locus
  10/12/24
twist: the sil was Catherine of aragorn
Painfully honest fantasy-prone nursing home
  10/12/24
If first brother was childless then this is classic Levirate...
Orange Boyish Tanning Salon Mood
  10/12/24
...
shimmering motley circlehead locus
  10/12/24
He's literally the closest replacement for the guy. I can't ...
Orange Boyish Tanning Salon Mood
  10/12/24
...
shimmering motley circlehead locus
  10/12/24
You're doing it for the purpose of having children, through ...
Orange Boyish Tanning Salon Mood
  10/13/24
are we talking about your wife's sister or your brother's wi...
Rose Meetinghouse
  10/12/24
How many times do we have to go over this.
sticky narrow-minded range
  10/12/24
...
balding jap bawdyhouse
  10/12/24
...
purple cowardly den pozpig
  11/30/25
...
balding jap bawdyhouse
  12/23/25
...
Green hell gaping
  12/23/25
...
Excitant Aquamarine National
  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
lemon confused abode incel
  10/12/24
voice of reason as always cbtp
aphrodisiac pistol temple
  10/12/24
not as deranged as brother-in-law
Bronze puppy tattoo
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
Saffron bonkers corner
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: aphrodisiac pistol temple

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

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



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: crawly striped hyena persian

I dunno. What if she has a nice ass?

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



Reply Favorite

Date: October 11th, 2024 4:35 PM
Author: Jet laughsome whorehouse stain

more detail plz

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



Reply Favorite

Date: October 11th, 2024 4:37 PM
Author: crawly striped hyena persian



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



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: cocky police squad parlour

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...id.#48188001)



Reply Favorite

Date: October 11th, 2024 4:41 PM
Author: yapping market

do u know what a sister in law is?

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Dashing mediation

he's watched too much porn

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



Reply Favorite

Date: October 11th, 2024 7:51 PM
Author: cocky police squad parlour

Objection, nonresponsive

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



Reply Favorite

Date: December 23rd, 2025 2:44 AM
Author: Green hell gaping



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



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: cocky police squad parlour

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...id.#48188616)



Reply Favorite

Date: October 11th, 2024 8:22 PM
Author: electric set

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...id.#48188745)



Reply Favorite

Date: October 11th, 2024 4:42 PM
Author: stimulating trailer park selfie

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...id.#48188009)



Reply Favorite

Date: October 11th, 2024 4:50 PM
Author: aphrodisiac pistol temple

mostly cr

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



Reply Favorite

Date: October 12th, 2024 3:21 PM
Author: lake hall



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



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: Dead Vivacious Resort Private Investor

this is exactly why I never sleep with my wife

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Dashing mediation

depends on if your wife is dead or not

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: stimulating trailer park selfie

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

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: purple cowardly den pozpig



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



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: Emerald Azn Field

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

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



Reply Favorite

Date: October 11th, 2024 8:14 PM
Author: mischievous zombie-like orchestra pit

(martin brodeur)

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



Reply Favorite

Date: October 12th, 2024 10:56 AM
Author: Vermilion contagious idiot

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...id.#48189844)



Reply Favorite

Date: October 12th, 2024 11:38 AM
Author: Rough-skinned pit

This. Plus they are always hugging and kissing you.

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



Reply Favorite

Date: December 23rd, 2025 6:52 AM
Author: Emerald Azn Field



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



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: aphrodisiac pistol temple

Wtf

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



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: Vermilion contagious idiot

This is my life. Constant blue balls.

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



Reply Favorite

Date: November 30th, 2025 4:44 PM
Author: Jet laughsome whorehouse stain



(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2...id.#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...id.#49913429)



Reply Favorite

Date: October 12th, 2024 11:41 AM
Author: Irate parlor reading party

Is she a spicy Latina?

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: purple cowardly den pozpig



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



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: Rough-skinned pit

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...id.#48189964)



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: Sepia Sneaky Criminal Sweet Tailpipe

180

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



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: shimmering motley circlehead locus



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



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: Painfully honest fantasy-prone nursing home

twist: the sil was Catherine of aragorn

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



Reply Favorite

Date: October 12th, 2024 3:20 PM
Author: Orange Boyish Tanning Salon Mood

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...id.#48190659)



Reply Favorite

Date: October 12th, 2024 3:25 PM
Author: shimmering motley circlehead locus



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



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: Orange Boyish Tanning Salon Mood

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...id.#48190707)



Reply Favorite

Date: October 12th, 2024 3:38 PM
Author: shimmering motley circlehead locus



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



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: Orange Boyish Tanning Salon Mood

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...id.#48191875)



Reply Favorite

Date: October 12th, 2024 11:50 AM
Author: Rose Meetinghouse

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...id.#48189984)



Reply Favorite

Date: October 12th, 2024 11:52 AM
Author: sticky narrow-minded range

How many times do we have to go over this.

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



Reply Favorite

Date: October 12th, 2024 4:01 PM
Author: balding jap bawdyhouse



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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: purple cowardly den pozpig



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



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: balding jap bawdyhouse



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



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: Green hell gaping



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



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: Excitant Aquamarine National



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



Reply Favorite

Date: October 12th, 2024 11:51 AM
Author: lemon confused abode incel

yes

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



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: aphrodisiac pistol temple

voice of reason as always cbtp

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



Reply Favorite

Date: October 12th, 2024 11:57 AM
Author: Bronze puppy tattoo

not as deranged as brother-in-law

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



Reply Favorite

Date: December 23rd, 2025 7:03 AM
Author: Saffron bonkers corner

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...id.#49533184)