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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?
thriller transparent twinkling uncleanness gas station
  10/11/24
I dunno. What if she has a nice ass?
lemon alcoholic meetinghouse
  10/11/24
more detail plz
Twisted tanning salon hairy legs
  10/11/24
...
lemon alcoholic meetinghouse
  10/11/24
It probably depends on how much you hate your bio parent and...
indigo hilarious therapy pocket flask
  10/11/24
do u know what a sister in law is?
Medicated garnet plaza travel guidebook
  10/11/24
he's watched too much porn
Carmine Psychic
  10/11/24
Objection, nonresponsive
indigo hilarious therapy pocket flask
  10/11/24
...
high-end locus roast beef
  12/23/25
I do but I prefer fantasizing about my non-existent step sis...
indigo hilarious therapy pocket flask
  10/11/24
Not sure if this analysis is on point. The less it's justifi...
zombie-like giraffe
  10/11/24
sleeping with anyone within your orbit of friends & fami...
Adventurous primrose kitchen
  10/11/24
mostly cr
thriller transparent twinkling uncleanness gas station
  10/11/24
...
Navy trump supporter
  10/12/24
this is exactly why I never sleep with my wife
electric hell pisswyrm
  12/23/25
depends on if your wife is dead or not
Carmine Psychic
  10/11/24
i believe this is colloquially known as "the biden rule...
Adventurous primrose kitchen
  10/11/24
...
jet diverse market round eye
  11/30/25
only if you don't take pictures to share with us
Lilac low-t trailer park
  10/11/24
(martin brodeur)
black free-loading church building pervert
  10/11/24
Anyone who doesn't at least understand the temptation doesn'...
Vermilion famous landscape painting
  10/12/24
This. Plus they are always hugging and kissing you.
Sooty field
  10/12/24
...
Lilac low-t trailer park
  12/23/25
Wtf
thriller transparent twinkling uncleanness gas station
  10/12/24
This is my life. Constant blue balls.
Vermilion famous landscape painting
  10/12/24
...
Twisted tanning salon hairy legs
  11/30/25
Is she a spicy Latina?
infuriating fantasy-prone main people
  10/12/24
...
jet diverse market round eye
  11/30/25
Youngest SiL is trim, has a 180 ass and is always kissing me...
Sooty field
  10/12/24
180
dark juggernaut
  10/12/24
...
Multi-colored gay wizard
  10/12/24
twist: the sil was Catherine of aragorn
blue chad
  10/12/24
If first brother was childless then this is classic Levirate...
Exhilarant Cobalt Mad-dog Skullcap
  10/12/24
...
Multi-colored gay wizard
  10/12/24
He's literally the closest replacement for the guy. I can't ...
Exhilarant Cobalt Mad-dog Skullcap
  10/12/24
...
Multi-colored gay wizard
  10/12/24
You're doing it for the purpose of having children, through ...
Exhilarant Cobalt Mad-dog Skullcap
  10/13/24
are we talking about your wife's sister or your brother's wi...
Curious Theater Pistol
  10/12/24
How many times do we have to go over this.
Vivacious buck-toothed degenerate doctorate
  10/12/24
...
Glittery police squad
  10/12/24
...
jet diverse market round eye
  11/30/25
...
Glittery police squad
  12/23/25
...
high-end locus roast beef
  12/23/25
...
Green flatulent nursing home
  12/23/25
yes
hairraiser cruel-hearted cuckold piazza
  10/12/24
voice of reason as always cbtp
thriller transparent twinkling uncleanness gas station
  10/12/24
not as deranged as brother-in-law
comical orchestra pit
  10/12/24
Wife’s sister or your bros wife = deranged wife&rsq...
Concupiscible Bright Wrinkle Feces
  12/23/25


Poast new message in this thread



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: thriller transparent twinkling uncleanness gas station

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

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



Reply Favorite

Date: October 11th, 2024 4:34 PM
Author: lemon alcoholic meetinghouse

I dunno. What if she has a nice ass?

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



Reply Favorite

Date: October 11th, 2024 4:35 PM
Author: Twisted tanning salon hairy legs

more detail plz

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



Reply Favorite

Date: October 11th, 2024 4:37 PM
Author: lemon alcoholic meetinghouse



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



Reply Favorite

Date: October 11th, 2024 4:40 PM
Author: indigo hilarious therapy pocket flask

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=2id.#48188001)



Reply Favorite

Date: October 11th, 2024 4:41 PM
Author: Medicated garnet plaza travel guidebook

do u know what a sister in law is?

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Carmine Psychic

he's watched too much porn

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



Reply Favorite

Date: October 11th, 2024 7:51 PM
Author: indigo hilarious therapy pocket flask

Objection, nonresponsive

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



Reply Favorite

Date: December 23rd, 2025 2:44 AM
Author: high-end locus roast beef



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



Reply Favorite

Date: October 11th, 2024 7:50 PM
Author: indigo hilarious therapy pocket flask

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=2id.#48188616)



Reply Favorite

Date: October 11th, 2024 8:22 PM
Author: zombie-like giraffe

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=2id.#48188745)



Reply Favorite

Date: October 11th, 2024 4:42 PM
Author: Adventurous primrose kitchen

sleeping with anyone within your orbit of friends & family is insane and doomed

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2id.#48188009)



Reply Favorite

Date: October 11th, 2024 4:50 PM
Author: thriller transparent twinkling uncleanness gas station

mostly cr

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



Reply Favorite

Date: October 12th, 2024 3:21 PM
Author: Navy trump supporter



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



Reply Favorite

Date: December 23rd, 2025 2:58 AM
Author: electric hell pisswyrm

this is exactly why I never sleep with my wife

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Carmine Psychic

depends on if your wife is dead or not

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



Reply Favorite

Date: October 11th, 2024 4:44 PM
Author: Adventurous primrose kitchen

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

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: jet diverse market round eye



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



Reply Favorite

Date: October 11th, 2024 4:48 PM
Author: Lilac low-t trailer park

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

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



Reply Favorite

Date: October 11th, 2024 8:14 PM
Author: black free-loading church building pervert

(martin brodeur)

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



Reply Favorite

Date: October 12th, 2024 10:56 AM
Author: Vermilion famous landscape painting

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=2id.#48189844)



Reply Favorite

Date: October 12th, 2024 11:38 AM
Author: Sooty field

This. Plus they are always hugging and kissing you.

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



Reply Favorite

Date: December 23rd, 2025 6:52 AM
Author: Lilac low-t trailer park



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



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: thriller transparent twinkling uncleanness gas station

Wtf

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



Reply Favorite

Date: October 12th, 2024 5:01 PM
Author: Vermilion famous landscape painting

This is my life. Constant blue balls.

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



Reply Favorite

Date: November 30th, 2025 4:44 PM
Author: Twisted tanning salon hairy legs



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



Reply Favorite

Date: October 12th, 2024 11:41 AM
Author: infuriating fantasy-prone main people

Is she a spicy Latina?

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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: jet diverse market round eye



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



Reply Favorite

Date: October 12th, 2024 11:44 AM
Author: Sooty field

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=2id.#48189964)



Reply Favorite

Date: October 12th, 2024 3:45 PM
Author: dark juggernaut

180

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



Reply Favorite

Date: October 12th, 2024 11:48 AM
Author: Multi-colored gay wizard



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



Reply Favorite

Date: October 12th, 2024 3:17 PM
Author: blue chad

twist: the sil was Catherine of aragorn

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



Reply Favorite

Date: October 12th, 2024 3:20 PM
Author: Exhilarant Cobalt Mad-dog Skullcap

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=2id.#48190659)



Reply Favorite

Date: October 12th, 2024 3:25 PM
Author: Multi-colored gay wizard



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



Reply Favorite

Date: October 12th, 2024 3:34 PM
Author: Exhilarant Cobalt Mad-dog Skullcap

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=2id.#48190707)



Reply Favorite

Date: October 12th, 2024 3:38 PM
Author: Multi-colored gay wizard



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



Reply Favorite

Date: October 13th, 2024 12:04 AM
Author: Exhilarant Cobalt Mad-dog Skullcap

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=2id.#48191875)



Reply Favorite

Date: October 12th, 2024 11:50 AM
Author: Curious Theater Pistol

are we talking about your wife's sister or your brother's wife?

(http://www.autoadmit.com/thread.php?thread_id=5610171&forum_id=2id.#48189984)



Reply Favorite

Date: October 12th, 2024 11:52 AM
Author: Vivacious buck-toothed degenerate doctorate

How many times do we have to go over this.

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



Reply Favorite

Date: October 12th, 2024 4:01 PM
Author: Glittery police squad



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



Reply Favorite

Date: November 30th, 2025 4:48 PM
Author: jet diverse market round eye



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



Reply Favorite

Date: December 23rd, 2025 2:34 AM
Author: Glittery police squad



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



Reply Favorite

Date: December 23rd, 2025 2:46 AM
Author: high-end locus roast beef



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



Reply Favorite

Date: December 23rd, 2025 6:43 AM
Author: Green flatulent nursing home



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



Reply Favorite

Date: October 12th, 2024 11:51 AM
Author: hairraiser cruel-hearted cuckold piazza

yes

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



Reply Favorite

Date: October 12th, 2024 4:02 PM
Author: thriller transparent twinkling uncleanness gas station

voice of reason as always cbtp

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



Reply Favorite

Date: October 12th, 2024 11:57 AM
Author: comical orchestra pit

not as deranged as brother-in-law

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



Reply Favorite

Date: December 23rd, 2025 7:03 AM
Author: Concupiscible Bright Wrinkle Feces

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=2id.#49533184)