Expanded Incest Mod

[HalfVampireDoughnut]

About the latest patch: From what I can tell so far, it seems to be compatible with this mod. However, due to the differences in family tracking, new relationship bits for other types of relatives exist now, such as parent's cousin, great-grandchild, etc. My mod has a lot of tests that look for whether two sims are family, which means I'm going to need to manually add these new bits to every single one of them if I want the effect to be applied to them. Needless to say, that might take some time. 

Likewise, there's something else that this patch changes. Family relationships can no longer be manually set, neither from tuning and relbits, nor through python. I'll admit, part of what I wanted to add as new content in the future was a system for secret family/accidental incest, and I had a skelleton made for it. Unfortunately. this skelleton is now obsolete. I don't know if or how I can find a way to adapt it around the changes yet, but in any case, this also means more time taken up by moving this skelleton to a new MC project so that I can export the test changes without figuring it out immediately (the mod uses Mod Constuctor for the simpler aspects of it).

I know I've taken a while to speak about the patch, but I've had many things going on in my life and still do. For now, the mod works, but for full compatibility with new features I might take a few more days, sorry

Edited February 6 by HalfVampireDoughnut

[pancakes34]

take your time! on the contrary, thank you for your hard work even in difficult times. sending you a virtual hug and hoping everything gets better and sorted out (as much as needed/possible) in your life. ❤️ we'll be waiting here for you

[A N A R U]

8 hours ago, HalfVampireDoughnut said:

About the latest patch: From what I can tell so far, it seems to be compatible with this mod. However, due to the differences in family tracking, new relationship bits for other types of relatives exist now, such as parent's cousin, great-grandchild, etc. My mod has a lot of tests that look for whether two sims are family, which means I'm going to need to manually add these new bits to every single one of them if I want the effect to be applied to them. Needless to say, that might take some time. 

Likewise, there's something else that this patch changes. Family relationships can no longer be manually set, neither from tuning and relbits, nor through python. I'll admit, part of what I wanted to add as new content in the future was a system for secret family/accidental incest, and I had a skelleton made for it. Unfortunately. this skelleton is now obsolete. I don't know if or how I can find a way to adapt it around the changes yet, but in any case, this also means more time taken up by moving this skelleton to a new MC project so that I can export the test changes without figuring it out immediately (the mod uses Mod Constuctor for the simpler aspects of it).

I know I've taken a while to speak about the patch, but I've had many things going on in my life and still do. For now, the mod works, but for full compatibility with new features I might take a few more days, sorry

thanks for your work

[ElTlacuache]

11 hours ago, HalfVampireDoughnut said:

About the latest patch: From what I can tell so far, it seems to be compatible with this mod. However, due to the differences in family tracking, new relationship bits for other types of relatives exist now, such as parent's cousin, great-grandchild, etc. My mod has a lot of tests that look for whether two sims are family, which means I'm going to need to manually add these new bits to every single one of them if I want the effect to be applied to them. Needless to say, that might take some time. 

Likewise, there's something else that this patch changes. Family relationships can no longer be manually set, neither from tuning and relbits, nor through python. I'll admit, part of what I wanted to add as new content in the future was a system for secret family/accidental incest, and I had a skelleton made for it. Unfortunately. this skelleton is now obsolete. I don't know if or how I can find a way to adapt it around the changes yet, but in any case, this also means more time taken up by moving this skelleton to a new MC project so that I can export the test changes without figuring it out immediately (the mod uses Mod Constuctor for the simpler aspects of it).

I know I've taken a while to speak about the patch, but I've had many things going on in my life and still do. For now, the mod works, but for full compatibility with new features I might take a few more days, sorry

Don’t worry, and thank you for your honesty, patience, and effort. I hope we can see in the future what you mentioned. From my side, I send you a hug, and I hope you can first resolve whatever is affecting your life. Once again, thank you for your effort—you’ve done a great job so far. Take care. 😀

[violeteyes]

On 2/6/2026 at 10:04 AM, HalfVampireDoughnut said:

About the latest patch: From what I can tell so far, it seems to be compatible with this mod. However, due to the differences in family tracking, new relationship bits for other types of relatives exist now, such as parent's cousin, great-grandchild, etc. My mod has a lot of tests that look for whether two sims are family, which means I'm going to need to manually add these new bits to every single one of them if I want the effect to be applied to them. Needless to say, that might take some time. 

Likewise, there's something else that this patch changes. Family relationships can no longer be manually set, neither from tuning and relbits, nor through python. I'll admit, part of what I wanted to add as new content in the future was a system for secret family/accidental incest, and I had a skelleton made for it. Unfortunately. this skelleton is now obsolete. I don't know if or how I can find a way to adapt it around the changes yet, but in any case, this also means more time taken up by moving this skelleton to a new MC project so that I can export the test changes without figuring it out immediately (the mod uses Mod Constuctor for the simpler aspects of it).

I know I've taken a while to speak about the patch, but I've had many things going on in my life and still do. For now, the mod works, but for full compatibility with new features I might take a few more days, sorry

Thank you for all your hard work! Please don't worry and take all the time you need! I hope all goes well for you, both irl and with the mod! I really enjoy using it in my game, so I look forward to what comes next! : D

[Br-52]

Hey,
I'm trying to set this mod up and understand all it's settings and parameters. 
I REALLY liked the idea with different attitudes towards incest. But I can't seem to find that setting. Either I'm looking at the wrong place or something is broken in my mod-setup. 

This is the setting I'm looking for


When I go from clicking the character -> Wicked -> Personalization -> Wicked Attributes -> Give Attributes
I get this:


Any pointers on this would be really helpful, thanks!

[swxpey02]

1 hour ago, Braindrift said:

1 hour ago, Braindrift said:

Hey,
I'm trying to set this mod up and understand all it's settings and parameters. 
I REALLY liked the idea with different attitudes towards incest. But I can't seem to find that setting. Either I'm looking at the wrong place or something is broken in my mod-setup. 

This is the setting I'm looking for


When I go from clicking the character -> Wicked -> Personalization -> Wicked Attributes -> Give Attributes
I get this:


Any pointers on this would be really helpful, thanks!

i havent played the game in a while, but i believe you have to 1. have them actually as a family member, (both of the sims, like the male and female weather its cousins, mom son, father daughter, brother sister, etc etc) then you give them both the incest trait (from wicked whims) then you play as one of them, choose one of the sims (weather its a guy or a girl) then select the others character, and look through the wheel of interactions to find expanded incest. i use "incest, incest fetishist, incestuous attraction prone, and unabashed" i believe you may need to develop a crush on them (like for the male, select the female, expanded incest, then find the option to develop a crush on her, then do the same for the male by having the female selected), im not completely sure what all the interactions are yet, idk if theres anything that leads to like a animation kind of thing yet, but yeah. that should be the basis of it

[A N A R U]

5 hours ago, Braindrift said:

Hey,
I'm trying to set this mod up and understand all it's settings and parameters. 
I REALLY liked the idea with different attitudes towards incest. But I can't seem to find that setting. Either I'm looking at the wrong place or something is broken in my mod-setup. 

This is the setting I'm looking for


When I go from clicking the character -> Wicked -> Personalization -> Wicked Attributes -> Give Attributes
I get this:


Any pointers on this would be really helpful, thanks!

It's separate to WW – it's in this menu:

Edited February 8 by A N A R U

[MrGrey]

Great mod, and survived the game update that changed how they do the family tree.

I noticed that the game considered my sim and Eloise Hiddlestix of ThriftT to be clones, which made no sense.  Since she is homeless, my sim was able to by her as a house slave using Nisa's wicked perversions.  House slaves don't get to care about their former gender preference, but it still blocked any clone interactions. 

Another play had a level 8 scientist make a upgraded clone machine. Sims A could clone himself to Sim B, and Sim B makes a clone of him self to Sim C, but sims A and C have no clone relation. I had hoped for a clone orgy. 

is there a cheat to make clone relation between two sims? 

The game is kinda messed up with family relations in CAS. "Can't edit existing sims" and all that. 

 

 

[Br-52]

5 hours ago, A N A R U said:

It's separate to WW – it's in this menu:

I don't get that menu to show up. But as swxpey said, maybe it's because my sims haven't got the correct relationship yet. I started a completely new game with newly created sims, set up in a dad, mom, daughter relation. Going to try and just play them for a while to see if this option shows up. But really good to know where I'm supposed to be looking. Thanks!

 

Edit 1: I made them go into a relationship and do some woohoo, the incest menu option still isn't showing up. So I'm fairly sure that Expanded Incest isn't working for me here. Going to read through the questions as there seem to be quite a lot of questions around this how to make it kick in. But what's the easiest way to confirm that a mod is loaded in and working? I get it listed in the list of mods ofc.

 

Edit 2: Ok, the issue was located between the keyboard and the chair. I had been really careful to add all the requirements, but forgot to add the actual mod itself. That's what you get for doing late night modding I suppose. Seems to be working fine now. Thanks for humoring me in this quest of insanity.

Edited February 8 by Braindrift
I'm a complete donut

[HalfVampireDoughnut]

On 2/6/2026 at 10:59 PM, pancakes34 said:

take your time! on the contrary, thank you for your hard work even in difficult times. sending you a virtual hug and hoping everything gets better and sorted out (as much as needed/possible) in your life. ❤️ we'll be waiting here for you

Thank you, I appreciate it ❤️

[HalfVampireDoughnut]

On 2/7/2026 at 4:13 AM, ElTlacuache said:

Don’t worry, and thank you for your honesty, patience, and effort. I hope we can see in the future what you mentioned. From my side, I send you a hug, and I hope you can first resolve whatever is affecting your life. Once again, thank you for your effort—you’ve done a great job so far. Take care. 😀

Thank you for your support!

Edited February 8 by HalfVampireDoughnut

[HalfVampireDoughnut]

23 hours ago, violeteyes said:

Thank you for all your hard work! Please don't worry and take all the time you need! I hope all goes well for you, both irl and with the mod! I really enjoy using it in my game, so I look forward to what comes next! : D

Thanks to you for the well wishes

[HalfVampireDoughnut]

18 hours ago, MrGrey said:

Great mod, and survived the game update that changed how they do the family tree.

I noticed that the game considered my sim and Eloise Hiddlestix of ThriftT to be clones, which made no sense.  Since she is homeless, my sim was able to by her as a house slave using Nisa's wicked perversions.  House slaves don't get to care about their former gender preference, but it still blocked any clone interactions. 

Another play had a level 8 scientist make a upgraded clone machine. Sims A could clone himself to Sim B, and Sim B makes a clone of him self to Sim C, but sims A and C have no clone relation. I had hoped for a clone orgy. 

is there a cheat to make clone relation between two sims? 

The game is kinda messed up with family relations in CAS. "Can't edit existing sims" and all that. 

 

 

Lumpinou's sim info manager allows you to add relbits manually afaik... but the latest patch also makes it so family bits (except for parent-child) can no longer be looted or added through script. Clones are counted as siblings by the game, so it's very likely that they are also taking the hit, unfortunately https://forums.ea.com/blog/the-sims-game-info-hub-en/the-sims-4-code-changes-for-modders---feb-3rd-base-game-update/13120743

Edited February 8 by HalfVampireDoughnut

[SixAndAHalf]

Hey there! I made some relative progress on why the mod didn't work by updating as many mods as I could, but I think I hit a wall. I posted this in the Nisa's WP support thread but was hoping maybe you would have an answer to why your mod causes this error. Any thoughts? I really want to try your mod, it looks so cool😭

 

Quote

So can someone help me understand my error text? I got the last exception after installing a mod called expanded incest by VampireDoughnut and it does that thing where it sends me to the manage worlds screen and throws up the error notification. It fixes when I remove the mod but the last exception text says basemental is responsible? If someone has info, I would appreciate it. Thank you in advance.

 

Ver LL.3.7b at Time: Sun Feb  8 18:29:08 2026 on Windows with WW v185f and Basemental 8.18.181 on 1.121.342.1030
 Traceback (most recent call last):
  File "E:\\Python3_7_0\\version_vault\\LL\LL_3_7b\NisaK\utilities\hazard_detector.py", line 106, in wrapper
  File "E:\\Python3_7_0\\version_vault\\LL\LL_3_7b\NisaK\wickedpervs\interactions.py", line 393, in add_superaffordances
  File "E:\\Python3_7_0\\version_vault\\LL\LL_3_7b\NisaK\utilities\nisa_injector.py", line 17, in protected_original_function
  File "T:\InGame\Gameplay\Scripts\Server\sims\masked\v185f\injector.py", line 26, in _wrapped_function
  File ".\WickedWhims_v185f\turbolib2\services\affordances_service.py", line 498, in _turbolib_on_tunable_class_tuning_load
  File ".\BasementalDrugs_8.18.181-PUBLIC\Basemental\utilities\injector.py\injector.py", line 31, in _wrapped_function
  File ".\BasementalDrugs_8.18.181-PUBLIC\Basemental\injections\april_fools.py\april_fools.py", line 163, in bmd_appliances_load_data_into_class_instances
  File ".\BasementalDrugs_8.18.181-PUBLIC\Basemental\utilities\injector.py\injector.py", line 23, in protected_original_function
  File "C:\Users\Kseniia\AppData\Local\Programs\Python\Python37\ksuinjector.py", line 11, in _inject
TypeError: Likely False Positive error for Wicked Perversions occurred, originating from _wrapped_function. Original Error: Likely False Positive Basemental error occurred, originating from _inject. Original Error: load_data_into_class_instances() takes 2 positional arguments but 3 were given..

 

[GoosePeelings]

I like the mod though the incest-related dialogue options are way too prevalent in the wheel when a sim does not have any of the traits.

 

After the latest patch and update I did get a strange issue. Two completely unrelated sims I made in separate families got incest-related moodlets after romantic interactions. I checked their profiles and the family trees. The "incest" trait also got added automatically to them.

[Nomyeh]

Hello, big fan of your mod there, thanks ❤️

 

I'm having an issue since the latest patch, I don't have the parents reactions to sex (The 'OH MY GOD WHAT ARE YOU TWO DOING', and the Scandal moodlets) anymore. Rest seems to be working fine (persuasion, 'What am I doing' moodlets etc,). Does anybody else have this issue or does it still work for everyone ? I don't have that many mods that changed recently but I might need to look into them...

 

Cheers

[amreyyy]

 

I'm having the same problem as a few others: I can't play with my family. After loading the game, I'm taken to the worlds screen. I have the Lot 51 core library, WW, and inappropriate unlock. I removed all other mods and CC, thinking it was their fault, but it's the Expanded Incest Mod that's breaking the game. I have the FitGirl repack (with all the add-ons), so maybe that's the issue (although all other mods worked)? Or am I unpacking the files incorrectly?

[HalfVampireDoughnut]

15 minutes ago, amreyyy said:

 

I'm having the same problem as a few others: I can't play with my family. After loading the game, I'm taken to the worlds screen. I have the Lot 51 core library, WW, and inappropriate unlock. I removed all other mods and CC, thinking it was their fault, but it's the Expanded Incest Mod that's breaking the game. I have the FitGirl repack (with all the add-ons), so maybe that's the issue (although all other mods worked)? Or am I unpacking the files incorrectly?

Your game needs to be on the latest version. Relbit tests are not friendly to references that go nowhere, and new ones were added with the last patch. Repacks are just not a reliable way to keep your game updated. 

Edited February 12 by HalfVampireDoughnut

[HalfVampireDoughnut]

On 2/9/2026 at 8:19 PM, GoosePeelings said:

I like the mod though the incest-related dialogue options are way too prevalent in the wheel when a sim does not have any of the traits.

 

After the latest patch and update I did get a strange issue. Two completely unrelated sims I made in separate families got incest-related moodlets after romantic interactions. I checked their profiles and the family trees. The "incest" trait also got added automatically to them.

Can you specify which moodlets you got out of place so that I can try to narrow this down?

 

[HalfVampireDoughnut]

5 hours ago, Nomyeh said:

Hello, big fan of your mod there, thanks ❤️

 

I'm having an issue since the latest patch, I don't have the parents reactions to sex (The 'OH MY GOD WHAT ARE YOU TWO DOING', and the Scandal moodlets) anymore. Rest seems to be working fine (persuasion, 'What am I doing' moodlets etc,). Does anybody else have this issue or does it still work for everyone ? I don't have that many mods that changed recently but I might need to look into them...

 

Cheers

Thank you! The scandal moodlets actually already come from Wicked Whims itself, and other reactions to incest sex I injected on them, so they are dependent on them. I checked the WW tuning file and the buffs themselves are still there, sometimes it takes more time in the presence of the caught sims for them to trigger or it's more difficult to trigger in certain circumstances, but I'll look into it

Edited February 12 by HalfVampireDoughnut

[HalfVampireDoughnut]

On 2/9/2026 at 10:34 AM, SixAndAHalf said:

Hey there! I made some relative progress on why the mod didn't work by updating as many mods as I could, but I think I hit a wall. I posted this in the Nisa's WP support thread but was hoping maybe you would have an answer to why your mod causes this error. Any thoughts? I really want to try your mod, it looks so cool😭

 

 

Unfortunately, there's little I can gleam from this. It says they're likely false positives, which is probably true if those mods are updated. You probably already have, but try the last update of my mod if you haven't to see if it changes it. You might have missed some other outdated mods, or could be missing some requirements for them or my mod, like injectors, etc. Otherwise, as this is not an error that occurs in my testing, it would mean that it comes from a differences between the game we're using it on rather than the mod itself since that's constant. Any details you can share about which dlc you have on it, whether you tested it without any other mods, etc. are useful in trying to see what that difference is that causes it

[Nomyeh]

19 hours ago, HalfVampireDoughnut said:

Thank you! The scandal moodlets actually already come from Wicked Whims itself, and other reactions to incest sex I injected on them, so they are dependent on them. I checked the WW tuning file and the buffs themselves are still there, sometimes it takes more time in the presence of the caught sims for them to trigger or it's more difficult to trigger in certain circumstances, but I'll look into it

 

So thanks to your answer, I've tested a bit more, and I can't trigger the WW scandal buffs/moodlets at all even without your mod. There might be an issue with WW or more probably somewhere on my end, I'll need to dig deeper.

 

Thank you for taking the time to answer anyway 

Edited February 13 by Nomyeh

[gmden72]

1 hour ago, Nomyeh said:

 

So thanks to your answer, I've tested a bit more, and I can't trigger the WW scandal buffs/moodlets at all even without your mod. There might be an issue with WW or more probably somewhere on my end, I'll need to dig deeper.

 

Thank you for taking the time to answer anyway 

 

I could be wrong but I think the only way to get the scandel moodlet is for another family member to catch/see you and then they will get that moodlet.

Thats only way I've ever gotten that moodlet in one of my games.

 

Edited February 13 by gmden72

[Nomyeh]

Yes, that's what I'm not being able to do anymore since the patch that changed the family trees and stuff (last week). I'll wait to see if the new WW version with the latest game patch solves it.