We love the gruesome twosome.

There have been some incredible duos in recent TV history, take a look a some of our favourites here, but Charlie and Frank from the utterly brilliant 'It's Always Sunny in Philadelphia' are the most interesting. They just have the most warped, depraved and messed up friendship that you're going to see on TV because they're both incredibly happy living in trash, boiling their denim and collecting crabs. Here's our 14 point plan to help you and your friends become just as close as the gruesome twosome.

Play nightcrawlers.

The test of true friendship is when you and your friends are happy to pretend to be worms and crawl around the floor at night together.

Bang your friend's true love.

Charlie is obsessed with the waitress so naturally all of his friends have banged her. Frank did try and repair some of the damage though by breaking into her home and scaring the living s**t out of her. It's a special friendship.

Get naked in the sewer together.

We're told that Frank and Charlie like to hang out in the sewer and look for rings and coins. Naturally they're naked so they don't get s**t and piss all over their clothes. Whatever you do, just don't hang out with Duncan down by the bridge.

Huff some cat food before sleeping together.

Make this a part of your nighttime ritual. If you and your friends are very comfortable in each others company, you might even think about pooping the bed. https://www.youtube.com/watch?v=qbv5957hQHU

Boil your denim.

If you ever decide to hang out underneath a bridge then you'll learn the meaning of true friendship. https://www.youtube.com/watch?v=R-3LPzDR8BE

Go on a double date.

Having a good wingman with an egg can help your romantic life, especially if you just happened to puke blood capsules all over your date.

Spike your friends drink with LSD.

Whenever you decide to trip balls, it's good idea to have a spotter. https://www.youtube.com/watch?v=1aZoieVR51c

Wear matching clothes

Scratch each others back.

How their apartment managed to get infected with Haitian bedbugs is beyond me.

Become trash people.

They're the garbage kings of Philadelphia for a reason but if that plan fails...

Become crab people.

Frank's endless schemes are utterly brilliant. The Warthog will never go away and we're interested to see what he has planned with crowtein. https://www.youtube.com/watch?v=lcyUU0sq2Zg

Work on your dance moves.

The ladies will love it on a Saturday night.

Marry each other.

Strictly for tax purposes of course because in Frank's words "I'm not going to get my dick cut off and sold to China"

See if your best friend is actually your dad

It's very possible that the gruesome twosome are actually father and son. We can see the resemblance.