Beaching Wedding for Alexa Vega and Carlos Pena

Alexa Vega and Carlos Pena said “I do” in Mexico Jan. 4… and despite the typically chilly season, the actress’s wedding gown was perfect for the beachside soiree.

The 25-year-old Machete Kills star donned a white slinky frock for her walk down the aisle and gave us a glimpse of her big day dress decision... and the sexy way her new hubby took off her garter.

"Most fun wedding ever!" wrote guest, Big Time Rush actress Challen Cates, on Instagram.

Before the garter came off and the lingerie dress went on, Alexa wore a beach-inspired gown for the ceremony. And with the sunset as a backdrop, Challen's husband Aaron McPherson posted a snapshot of the "cute couple."