I was in a massive wooden apartment. It was an open concept affair, with multiple levels of floor a few steps higher or lower than the next. There was a hot tub. It was the home of two sisters. They were based mostly on SW (a female friend who I rarely see) and her sister (a person I have never met). I suspect that the form they took in the dream was also a composite of the sister duo of AG (ex girlfriend from college) and her sister GG. The duo in the dream was not particularly similar to either of the IRL inspirations, aside from the fact that they are all pairs of sisters who do not get along and may even hate each other.
(Trust me, it gets more interesting…)