PICS: Inside Alexa Vega and Carlos Pena’s Big Time Beach Wedding

alexa and carlos wedding pics

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.

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

Photo: Instagram

With the sunset as a backdrop, Challen’s husband Aaron McPherson posted a snapshot of the “cute couple.”

Photo: Instagram

While the bride got a good wind-up to toss her bouquet to the next lucky lady.

Alexa also got to kick up her feet on the special day with a little help from the BTR boys, Kendall Schmidt, James Maslow and Logan Henderson, who looked casually dapper in khakis and white t-shirts.

Photo: Instagram

And the Puerto Vallarta view was priceless.

 Photo: Instagram

Challen couldn’t help but capture every moment with her co-stars, including James…

Photo: Instagram

Logan…

Photo: Instagram

And Kendall.

But it was after the ceremony when the real fun began.

Photo: Instagram

And Challen and James “partied like a rock star.”

Photo: Instagram

The newlyweds even got in some smooching practice before they got to the altar.

Photo: Instagram

And we can’t forget the unforgettable sparkler on Mrs. Pena’s finger: “I still can’t believe you built this thing from scratch! You designed something so beautiful baby!” Alexa wrote of her yellow diamond bauble via Instagram Nov. 8, two months after Carlos proposed.

Photo: Instagram