In the relationship I'm in, I wouldn't have a threesome. We've talked about it before, and it's something my partner wouldn't like. We're monogamous, and I'm happy to make him happy.
That being said, if we're ever not together, I love the idea of a threesome. Just not enough to wreck our relationship. I wish you had an option on the quiz to choose multiple options, haha. I would like to try MMF, FFM, and/or FFF if the opportunity ever arises.