But what happens if:
- you put a bunch of straight men on an island?
- you put a bunch of straight women on an island?
- you put a bunch of homosexual men and women on an island?
I think that in this last case some of them might find out that they are not as homo as they previously believed to be the case. Many homosexuals feel the urge to build families and have kids. They usually try to adopt but that might be hard to do in that isolated island...