Table for four

Research recently revealed something shocking: Having friends is good for your relationship.

Total surprise, right?

But we're not talking about just any friends. The key lies in finding good "couple friends," according to this article.

Of course, this is easier said than done.

The biggest challenge often exists in finding people who are on the same relationship wavelength as you and your partner.

There's nothing more annoying than sitting down on a "couple date" and having your friends shove the virtues of parenthood down your unmarried throat. Trust me, I've been there.

What's more, it's hard to actively search for couple friends without being mistaken for swingers. Awkward.

Here, YourTango offers four ideas for finding couple friends. Also, you can try friend-seeker websites like Kupple. (My favorite thing about Kupple? The bold-print warning: "Not a Swingers site.")

Any additional suggestions?