*brain explodes* Woah, I'm a biology person, but apparently I'm too lazy to read all that. Lol, you've backed up your point, no need to go farther.
Let's just hope things don't even get to that point, it'd be disgusting. Ephraim can go with Tana and Erika can go with Innes, or whoever else they find attractive, as long they don't go screwing each other, to be blunt about it...