OMg, I've been looking for a thread like this, cause I have GOT to share this. Ok, here goes.
I have a brother and sister sim, the brother married Siobhan, the Paragon's leader, and the sister married Candy (she's a musician, Candy's a music lover, match made in heaven, lol). I had Candy and Yuki both move in with her, since Yuki was still a teenager and they don't seem to have parents :-P Then I was playing with both, and I had Yuki move out on her own as an adult, Tech Guru and all that. Then she completed her computer brain aspiration, and since I'd made her childish when she aged up, I decided to go for the mischief aspiration, yknow, for funsies. So, she joined the renegades, which also has Siobhan's sister Morgan in it. And...they got together. They just seemed to really get long? And Morgan's romantic, so she was always getting flirty...IDK, they're married now.
So basically: Sister married Candy, Brother married Siobhan...and then Candy and Siobhan's sisters got married. Like...it's NOT incestuous, cause they're not related, they're just in laws, but...idk. Kind weird? Maybe? Also Morgan was already married to another NPC and pregnant when they got together, so Yuki is a home wrecker :-P Tho she's a good step mom, gets along really well with the kid, and I think the other parent is dead now, so probably for the best :-P
