Evette

Evette (Sierra's friend) is a teenage girl from the Transformers: Prime franchise! She's a troublemaker and she hangs out with her friend Sierra a lot!

Prime Cartoon
Sierra and Evette encountered Jack outside KO Burger, apparently talking to his motorcycle. Amused, Evette watched a flustered Jack attempting to flirt with Sierra. Until two purple cars appeared and tried to run them down!

She was again hanging out with Sierra again after school when they spotted Jack on his motorcycle. Sierra tried to ask for a ride, but after Vince interrupted them, Evette whispered something to her they both found amusing. Vince challenged Jack to a street race, and both Sierra and Evette went with them to be spectators. Following Jack's win, they spread news of his victory around the entire school!

She was talking with Sierra outside when Raf was picked up by an ambulance belonging to a friend of Jack's mother.

In the wake of the Omega Lock attack, Agent Fowler had the whole town of Jasper evacuated. This most likely included her and Sierra.

Ratchet & Clank: Twinsanity
A few days after the Omega Lock attack, Evette met up with a video-game character named Turbo and had sex with each him. Turbo started glitching into his alter-ego King Candy and was devoured by an Insecticon! Evette watched the horror of Turbo respawning inside the Insecticon and fused together with his King Candy persona still intact! He destroyed all of Jasper, Nevada, while Evette was forced to leave her home town in search of somewhere she can live peacefully, Sierra joined her so they could escape the destruction that Turbo has caused. They ended up on Twinsantiy Island, which is located only in the mysterious 10th Dimension!