Former child star Alexa Vega is engaged to be married to Big Time Rush star Carlos Pena Jr..

The former Spy Kids star posted an image of her beau on her Instagram page with the message, "Hello fiance", on Wednesday.

Pena posted his own shot if his girlfriend to his Instagram page, writing, "My angel!!! vegaalexa awesome road trip so far!! Now we just need to get back..."

We assume he popped the question during the trip.

The marriage will be 25-year-old Vega's second. She divorced first husband Sean Covel last December. They were married in 2010.