10. Star-Lord & Gamora
By no means is this a bad costume. If done right, this could actually be an awesome costume. Unfortunately, 99.9 percent of the couples who will try to wear this costume won't be able to come anywhere near pulling it off. If both of you are in superhero-esque shape and have the wit and comedic timing of the Guardians of the Galaxy stars, then by all means, go for it. Just put in the effort, because otherwise you'll end up looking like a futuristic hobo and She-Hulk's lazy cousin. On the flip side, if you're a tiny lady with a tall dude, Rocket Raccoon and Groot would be a fantastic costume and likely require way less work.
9. Kim Kardashian & Kanye West
Realistically, we think people should probably stay away from dressing like celebrity couples in general, but is there any couple worse than Kim and Kanye right now? If you don't hate one of them, you probably can't stand the other. But if you're a fan of both, then we guess it might just be too late for you. The only acceptable way to wear this costume would be as the "Kimye in the Morning" skit from SNL. While we're on the topic, how about everyone agrees to stay away from recently broken-up celebrity couples like Wiz Khalifa/Amber Rose and Mariah Carey/Nick Cannon. Because no one should ever be Nick Cannon.
8. Anything that's a direct reference to your genitals
Guys, we get it. You thought it'd be funny to wear a costume that greatly exaggerated your junk in a comedic manner. It probably was for a little bit, but now you're just giving the rest of us a bad name. As far as couples' costumes go, we're not sure what kind of lady would want to go as an electrical socket, a keyhole, a USB port or any other representation of the receiving end to their male counterpart's costume, but every year you see at least a few of them. If you're going to do a costume that has to go with the other person, be something where both sides are even, like peanut butter and jelly.