How Old Is Javi Marroquin?

Javi Marroquin, Kailyn Lowry's doting fiance and soon-to-be hubby, is 19 years old. It's almost hard to believe his age, considering his level of maturity and dedication to his growing family, but Javi is the real deal.  

How do we know? Javi recently revealed his birthday to a fan on Twitter. "Turn 20 December 11," he said. Kailyn, of course, already turned 20 on March 14, making her the older woman in the relationship. Scandalous!

Are you shocked to learn that Javi is younger than Kailyn? And, more importantly, are you excited for him to make his Teen Mom 2 debut this season? Dish it below!