Brother keeps refusing to double-team a girl

[AithneFiametta]

So... title. Do I need to turn Incest on? 'Cause I'd really rather not. 

[HentaiGnome]

In a way, yes, but if you don't want it to be a global "feature" then you can just give that brother an incest trait if you have enough satisfaction/aspiration points.

 

I don't know if the girl needs it too (if she's a sister), but if that doesn't work then give her the incest trait as well.

[smjm81]

Yep, HentaiGnome said.

I just tested this. The brother won't be able to join unless you give them both the incest aspiration.

[AithneFiametta]

Ugh, boo. It ought to not count if they're both doing *her*, not each other, but I guess the engine can't recognize that in the poses. Ah well, I'll make it work. Thanks!

[phlossyphloop]

I've run into this issue too, it is annoying, because this kind of thing happens irl and people don't consider it incest lmao, but yeah unfortunately the only way is to add the incest trait. I don't like giving sims the incest trait (except in certain situations), so in worlds where I'll want to do that kind of thing I just turn on global incest because I have autonomy unchecked for sex, but that's just me.