Straight person: "We're looking for a regular third—a hot, safe girl who wants to play with us as a couple. It's impossible."
Gay person: "Yup, they're hard to find. That's why straight couples in open relationships and swingers call them 'unicorns.' So hard to find they might as well be mythical."
Straight person: "What do gay couples call gay guys who are willing to play with gay couples?"
Gay person: "Horses."