My Swapfell Boys: Vanta and Cujo
I've always used sort of the same archetypes for my Swapfell boys, so I figured it was about time to share them! I've been using these headcanons since Swapfell boys first appeared in Six Skeletons in Your Closet and beyond. As is the nature of small Fandom, I've then seen some of the same headcanons used or in bits and pieces scattered, and I'm happy to have had an influence on the Swapfell archetype! I figure it's best to lay them out proper so everyone can see what I'm thinking when I use these.
If you are going to use these versions of the boys, please tag them as Swapfell Bane
Cujo
Older brother
Gold teeth on both sides, crack from left tooth all the way up to the base of his skull in the back
Royal purple magic, like a ripe eggplant.
Confident, big flirt, but huge commitophobe/trust issues. Trusts basically just Vanta and his Undyne.
Basically spoils Vanta. Does everything for him. He's the opposite of lazy: he does all the chores so that Vanta doesn't have to
Huge magic capacity. He's the perfect specimen, and was experimented on at a young age in a since-abandoned super soldier program. As a result, he has a werewolf-esque animalistic beast form that gives him increased strength, speed, and stamina, but it's hard to control and the transformation is painful. Trigger is vague, usually the same things that cause LV flares.
Smokes. Done harder drugs in the past, but is currently clean. Drinks very rarely.
He wears Vanta's collar because Vanta is incredibly delicate. The entire underground is terrified of Cujo and his beast form, so in turn they are terrified of Vanta because Cujo willfully kneels to him.
Vanta
Younger brother
1 HP since he was small. With his ill-gotten LV, it is now at a whopping 5 HP.
Magenta magic, a pinkish purple.
Made it to rank of Captain basically out of straight fear. People refused to even look him in the eye with Cujo over his shoulder.
Vanta is actually incredibly smart and tactical. It's been him and Cujo alone from a young age and Cujo has always told him he "needs brains to his brawn" and encouraged reading and puzzle skills. His favorite book ever has been The Art of War and he has used it to his advantage many a time
He knows the basics of taking care of himself, he isn't an idiot. But he's more dependent on Cujo than he'd like to admit. He gets a little into their charade, and he's kind of a brat, but deep down he's terrified of Cujo getting tired of him someday.
Three scars over left socket, from Catty's claws. They were only sparring, so the Intent wasn't there, which graciously spared his life.
A romantic, but horrendously terrible at showing it. Words are his strong suit, but only if they are criticism. He's trying, okay?
Bonus size comparison below the cut:

















