Back in 2001, director Robert Rodriguez helped put Alexa Vega on the map as one of the Spy Kids. She is reuniting with the filmmaker for his sequel Machete Kills, where she plays a character named Killjoy. While we don't know much about the role, the actress shared a photo from the set through her Instagram page, where we can clearly see she is definitely not a kid anymore. Check out the bikini-clad star in this new shot from the Austin, Texas set.