You aren't old until you realize that the babies from the Teen Mom shows have become teenagers themselves. When longtime cast member Maci Bookout shared on Instagram that she gave her son Bentley ...

While Leah and Bentley are the only of the two Teen Mom OG kids on the show, the trailer shows all of the cast's kids growing up before their very eyes — including Mackenzie Douthit's eldest son ...

which was later renamed Teen Mom OG for season 5. The star's comments come after news broke that her ex Ryan Edwards, with whom she shares 12-year-old son Bentley, had exited the show. His wife ...

If you ever turned to MTV during the early 2000s, chances are you saw at least one episode of Teen Mom. It ran from 2009 ...

Edwards was in and out of jail and there was time when Bentley had no relationship with his father. Throughout his time on Teen Mom, fans saw him fall in love with Standifer and start their family ...

And the two parents are coming together to buy their son his very first car — marking a special transition for Bentley as he steps into young adulthood. HOW TO STREAM ‘TEEN MOM: THE NEXT ...