Rexwalker

Rexwalker is the slash ship between Captain Rex and Anakin Skywalker from the Star Wars fandom.

The Hidden Enemy
Obi-Wan comms Anakin to inform him that the plan is falling apart, and Anakin comms Hawk to evac the north tower. Rex points out that they are in the south tower, and Anakin says they won't be for long. He breaks open the glass and has Rex's men fire the cables to the other tower.

The Clone Wars
Rex comms Anakin to inform him that the castle is secure. Anakin thanks him and informs him that they have Jabba's son. He asks if Rex has seen any sign of Obi-Wan, but so far, nothing.

Anakin goes to comm Rex, which Rex uses to take out a few battle droids. He takes cover, when he's able to answer Anakin's call. He tells them they're pinned down in the courtyard and Anakin asks if he needs help. Rex doesn't have time to answer, as he has to fight off the droids, but Anakin takes it as a yes. He says that they'll be on their way, but they end up having to fight off Ventress.

Anakin insists that they need to help Rex, but Ahsoka reminds him of their mission. Anakin comms Rex and sadly lets him know that they're not going to be able to help him. Rex says it's alright, and knows that the mission always comes first. He watches their ship fly over head before returning to fighting off the droids.

The Hidden Enemy

 * Anakin comments that Rex and the clones are eager to start the fight.

The Clone Wars

 * Rex asks Anakin what the plan is and Anakin tells him to follow him.
 * Anakin thanks Rex for the ride and Rex says anytime.
 * Anakin tells Rex to follow him up the side of the cliff.
 * Anakin orders Rex to stay outside and guard the entrance.
 * Anakin says that they'll need Rex to help them find the ship.
 * Rex assures the other trooper that Anakin will be there soon.

Attack of the Zillo Beast
The Zillo Beast Strikes Back
 * Anakin tells Rex to stay with Obi-Wan and Rex tells him to hurry or he'll miss all the fun.

Fanon
Rexwalker is a common pairing within the Star Wars fandom. Having a decent following among Clone Wars fans, though there seems to be more popularity as a gen ship. Like many clone/jedi ships, many enjoy how they seem to mirror each other.

There are some that started to ship them during the Bad Batch Arc of the last season, given the scene where Anakin is trying to get Rex to cover for him trying to sneak away to speak to Padme. Many pointed out that out of context it looked like Anakin was trying to get Rex to step away for a quick hook up, and given that the Hunter was with the two at the time, he likely came to that conclusion as well.

On AO3, Rexwalker is the sixth most written ship for Rex. There are currently 500+ works.

Fandom

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Trivia

 * Rex is one of the few people Anakin trusted to know about his marriage to Padmé.

Variations

 * Disaster Trio refers to the ship between Ahsoka Tano, Anakin and Rex
 * Rexanidala refers to the ship between Padmé Amidala, Rex and Anakin