Alejandro and Sierra

This article focuses on the interactions between Alejandro and Sierra.

Overview
Alejandro and Sierra were both newcomers to the competition during Total Drama World Tour. Unlike the other girls, Sierra outright despised Alejandro from the start, and was one of the few females to never fall for his charm. Both were initially put on the same team, but Sierra immediately switched teams early on in order to be with Cody. After the merge, the conflict intensified as Alejandro attempted to break the bonds between her and Cody.

Walk Like An Egyptian - Part 1
Sierra and Alejandro were initially placed on the same team. After the others are unable to think of a name for their team, Sierra came up with Team Chris Is Really Really Really Really Hot. While Chris likes the name, Alejandro and the others do not. Alejandro then curses in Spanish while using the confession, complaining that he is in a team with a bunch of incompetents.

Walk Like An Egyptian - Part 2
Sierra is the only member of Team Chris Is Really Really Really Really Hot who isn't impressed with Alejandro's motivational speech. She also adds that any girls who like him are crazy. Alejandro also doesn't seem to mind with Sierra switching teams with Izzy.

Broadway, Baby!
For most of the episode, Alejandro tries to prevent Heather from forming an alliance with Sierra. While climbing the Statue of Liberty, Alejandro convinces her to help Chris revisit his glory days because he thinks no one cares about him anymore.

Slap Slap Revolution
After seeing Alejandro slap Cody, Sierra became mad and kick DJ out of anger. The two are the last contestants for their team and Sierra was be able to knock Alejandro, allowing her team to win invincibility. However, it is later revealed that Alejandro allows her to knock him off.

Can't Help Falling In Louvre
While on the plane, Alejandro helps to hide Cody from Sierra because Cody attempted to vote her off in the previous episode. He also pointed mockingly at Sierra when Heather stated that her team does not get distracted by boys.

Greece's Pieces
Sierra becomes mad at Alejandro when he insults Cody. She also cheers for Heather after she successfully defeats Alejandro in the race.

Niagara Brawls
Initially, Sierra is suppose to be partnered with Alejandro, but she refuses. Right before he exits the machine, Sierra slams the door shut, crushing one of his arms. She then thanks Heather for taking him.

African Lying Safari
Once he knows that he is able to gain Heather's loyalty, Alejandro focuses on breaking the bonds between Sierra and Cody by inviting Cody to first class with him, infuriating Sierra.

Rapa Phooey!
Because of his actions in the previous episode, Sierra begins to hate Alejandro even more and calls him a "homewrecker." Upon finding one of his eggs during the challenge, she intentionally breaks it, and gives him an evil scowl. Alejandro then retorts, telling her that he will remember her actions upon finding an egg in her color. Once Sierra discovers Cody and Alejandro have decided to work together for the challenge, Sierra is furious, telling Cody that he cannot align with Alejandro. Sierra eventually aligns with Heather in order to eliminate Alejandro, but is unsuccessful. Sierra and Alejandro both vote against each other at the fake elimination ceremony.

Awwwwww, Drumheller
Alejandro tricks Sierra that Cody is cheating on her with Heather using a fake picture of Cody and Heather cuddling and she believes it. It was not until Cody explains what really happened that she realizes she was tricked. Angered, Sierra manage to get Cody and Heather's help to vote him off. The plan almost succeed, but Sierra accidentally blew the plane up, resulting in her own elimination.

Hawaiian Punch
Like almost everyone else, Sierra supports Cody over Alejandro during the tie-breaker challenge and was furious after Cody was almost killed. In the alternate ending, she cheers for Heather after she kicks Alejandro in the groin and wins Total Drama World Tour along with the one million dollar prize.

Niagara Brawls
After the challenge ends, Alejandro pretends to be the witness of the "marriage" between her and Cody in order to get her help to vote off Owen.

Awwwwww, Drumheller
Alejandro tried to warn Sierra that she was about to blow up the plane. After Sierra blew up the plane, Alejandro asks if she's okay.

Trivia

 * Both were two out of three new contestants who were introduced in Total Drama World Tour. The other being Blaineley.
 * Sierra is one of the few females who was never attracted to Alejandro. The others are Beth, Eva, and Gwen.
 * Both, along with their love interests, all made it to the final four, visited every location, appeared, and spoke in every non-aftermath episode.