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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?
tantric background story locale
  10/11/24
I dunno. What if she has a nice ass?
shimmering lettuce
  10/11/24
more detail plz
Emerald Friendly Grandma
  10/11/24
...
shimmering lettuce
  10/11/24
It probably depends on how much you hate your bio parent and...
Galvanic idiotic private investor giraffe
  10/11/24
do u know what a sister in law is?
ocher bisexual locus cuckold
  10/11/24
he's watched too much porn
Stubborn concupiscible jew nowag
  10/11/24
Objection, nonresponsive
Galvanic idiotic private investor giraffe
  10/11/24
...
Brilliant mildly autistic factory reset button library
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
Galvanic idiotic private investor giraffe
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
multi-colored costumed business firm
  10/11/24
sleeping with anyone within your orbit of friends & fami...
rambunctious soggy double fault chapel
  10/11/24
mostly cr
tantric background story locale
  10/11/24
...
dun mood messiness
  10/12/24
this is exactly why I never sleep with my wife
canary vigorous stain deer antler
  12/23/25
depends on if your wife is dead or not
Stubborn concupiscible jew nowag
  10/11/24
i believe this is colloquially known as "the biden rule...
rambunctious soggy double fault chapel
  10/11/24
...
Talking Swollen Boistinker Range
  11/30/25
only if you don't take pictures to share with us
Curious tattoo
  10/11/24
(martin brodeur)
obsidian arrogant pozpig athletic conference
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
Boyish confused international law enforcement agency
  10/12/24
This. Plus they are always hugging and kissing you.
Chocolate national security agency
  10/12/24
...
Curious tattoo
  12/23/25
Wtf
tantric background story locale
  10/12/24
This is my life. Constant blue balls.
Boyish confused international law enforcement agency
  10/12/24
...
Emerald Friendly Grandma
  11/30/25
i'm married to the younger hotter sister, and the temptation...
...,,..;...,,..,..,...,,,;..,
  06/03/26
Is she a spicy Latina?
amber hospital legal warrant
  10/12/24
...
Talking Swollen Boistinker Range
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
Chocolate national security agency
  10/12/24
180
irradiated pearl coffee pot
  10/12/24
...
laughsome university liquid oxygen
  10/12/24
twist: the sil was Catherine of aragorn
sadistic associate
  10/12/24
If first brother was childless then this is classic Levirate...
gaped useless old irish cottage field
  10/12/24
...
laughsome university liquid oxygen
  10/12/24
He's literally the closest replacement for the guy. I can't ...
gaped useless old irish cottage field
  10/12/24
...
laughsome university liquid oxygen
  10/12/24
You're doing it for the purpose of having children, through ...
gaped useless old irish cottage field
  10/13/24
are we talking about your wife's sister or your brother's wi...
Vengeful site fanboi
  10/12/24
How many times do we have to go over this.
hateful kitchen
  10/12/24
...
Trip Mediation
  10/12/24
...
Talking Swollen Boistinker Range
  11/30/25
...
Trip Mediation
  12/23/25
...
Brilliant mildly autistic factory reset button library
  12/23/25
...
Razzmatazz wine hominid
  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
appetizing elastic band wrinkle
  10/12/24
voice of reason as always cbtp
tantric background story locale
  10/12/24
not as deranged as brother-in-law
Smoky mewling school cafeteria
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
Sepia Twisted Address
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: tantric background story locale

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: shimmering lettuce

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: Emerald Friendly Grandma

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: shimmering lettuce



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



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: Galvanic idiotic private investor giraffe

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: ocher bisexual locus cuckold

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: Stubborn concupiscible jew nowag

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: Galvanic idiotic private investor giraffe

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: Brilliant mildly autistic factory reset button library



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



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: Galvanic idiotic private investor giraffe

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: multi-colored costumed business firm

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: rambunctious soggy double fault chapel

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: tantric background story locale

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: dun mood messiness



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



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: canary vigorous stain deer antler

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: Stubborn concupiscible jew nowag

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: rambunctious soggy double fault chapel

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: Talking Swollen Boistinker Range



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



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: Curious tattoo

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: obsidian arrogant pozpig athletic conference

(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: Boyish confused international law enforcement agency

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: Chocolate national security agency

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: Curious tattoo



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



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: tantric background story locale

Wtf

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



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: Boyish confused international law enforcement agency

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: Emerald Friendly Grandma



(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: amber hospital legal warrant

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: Talking Swollen Boistinker Range



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



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: Chocolate national security agency

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: irradiated pearl coffee pot

180

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



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: laughsome university liquid oxygen



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



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: sadistic associate

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: gaped useless old irish cottage field

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: laughsome university liquid oxygen



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



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: gaped useless old irish cottage field

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: laughsome university liquid oxygen



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



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: gaped useless old irish cottage field

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: Vengeful site fanboi

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: hateful kitchen

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: Trip Mediation



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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: Talking Swollen Boistinker Range



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



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: Trip Mediation



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



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: Brilliant mildly autistic factory reset button library



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



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: Razzmatazz wine hominid



(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: appetizing elastic band wrinkle

yes

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



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: tantric background story locale

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: Smoky mewling school cafeteria

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: Sepia Twisted 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)