In honor of our Loveless Family Reunion cover story, we're highlighting some favorite fictional siblings. Don't make us turn this car around!

In honor of our Loveless Family Reunion cover story, we're highlighting some favorite fictional siblings. Don't make us turn this car around!

Michelle, D.J. and Stephanie Tanner

We're not sure why the "Full House" daughters needed three father figures in their household. They seemed like pretty good kids. Our sympathy for them runs deeper after seeing the creepy YouTube someone cut together.

Buffy and Dawn Summers

Buffy spent four seasons kicking vampire ass in Sunnydale before the twisty revelation that she had a little sister the whole time. Being a protective big sister is even tougher when you grow up in a Hellmouth.

Michael, Gob, Lindsay and Buster Bluth

The Bluth children of "Arrested Development" seem like a maladjusted bunch, but considering their parents, they don't seem so bad.

Luke and Leia

The "Star Wars" sibs saved the galaxy, sure, but they seemed uncomfortably chill about the fact that they shared a passionate kiss (admittedly before they knew they were related, but ew).

Thor and Loki

It's hard growing up as the offspring of a god, but most sibling rivalries don't threaten the fabric of existence.

Sonny, Fredo, Michael and Connie Corleone

Vito Corleone's kids played out their own Shakespearean dramas in the mob life, most notably Fredo's betrayal of Michael. Bet your brother doesn't seem as bad now, huh?

Jack and Meg White

No, the members of The White Stripes aren't fictional, but their status as brother and sister was, an act promoted by the former husband and wife.

Leonardo, Raphael, Donatello, Michelangelo

The Teenage Mutant Ninja Turtles bicker, love pizza and hate the Foot Clan. Oh, also? Ninjas. What's not to love?

Francis, Reese, Malcolm and Dewey

As an only child, I can't vouch for it, but friends always said "Malcolm in the Middle" was one of the most honest depictions of brothers growing up - a mix of bullying and protecting. And, of course, their lovable dad went on to be a ruthless meth boss.

Dennis and Dee Reynolds

They were terrible siblings and terrible people, but that's exactly why we love "It's Always Sunny in Philadelphia."

Mario and Luigi

Think it wasn't hard growing up in his brother's shadow? Check out the online video game Ennuigi.

Chas, Margot and Richie Tenenbaum

The offspring of Royal and Etheline Tenenbaum had their own existential crises … not the least of which was Margot and Richie being secretly in love.

Lindsay and Sam Weir

The "Freaks & Geeks" sister-brother duo were the epitome of being embarrassed of your little sib in high school, but also totally having their back.