Jenelle Evans and Nathan Griffith may lead very public lives on MTV's Teen Mom 2, but the couple still enjoys a good secret.

Jenelle Evans Claims Her Mother Has Never Needed To Watch Her Newborn

Back in June they announced they were spending the afternoon at the beach, only to reveal later that day that they were really at the hospital as Evans gave birth to their first son together, Kaiser. Now, it seems that they're at it again.

"U guys always ask me about getting custody back of Jace," tweeted the star on Saturday. "Well just tune into the entire season of #TeenMom2 and u will find out. #Promise".

Nathan Griffith Claims He & Jenelle Evans Will 'Grow Old' Together

While 23-year-old Evans has not officially denied having custody of her 5-year-old son Jace, she hasn't admitted to it either. Jace has been living with Evans mother Barbara, who has had custody of the child since he was one. With Evans back in school and no longer partying, there's been talk about her getting Jace back, particularly since she gave birth to Kaiser.

With her recent post on Twitter, however, fans are starting to believe that Evans has already gotten custody back, and has been keeping it hidden so that the series can air the big reveal. Evans has been spending a lot of time with Jace lately, taking him to the zoo and the aquarium. Based on the photos Evans has been posting, it looks like he's also been waking up at her place frequently, suggesting that he might in fact be back with his mother for good.

Teen Mom 2 continues on MTV with new episodes Wednesdays at 10 p.m. ET/PT.

Tags: Teen Mom 2 MTV Reality TV