After playing my other households for a while, I decided to check back in on the Bunch household. A while back, teenaged Kaylynn Langerak decided to move in with the Bunches, thanks to EA story progression. I assume she wanted to be with her boyfriend Ethan Bunch. After installing a story progression mod, I was notified that Ethan (now a young adult) moved out of the Bunch household. When I checked in on him, I noticed that Kaylynn (who moved with him) and Ethan were
married, even though she was still a teen! Teenagers can't normally marry or have romantic interactions with sims other than teens. How did she marry him? Was it the mod or a game goof? I may never know.
Screenshot proof:
Even though they were married, they weren't able to interact romantically until I aged Kaylynn up. It was an amusing day in Sunset Valley.