Maci bookout’s son bentley is a pre-k punk rocker! [photo]

Whether he’s taking the Warhead challenge or working on his BMX skills, Maci Bookout’s little boy, Bentley, has always shown a ton of personality. But lately, it’s the adorable tyke’s fierce fashion sense that has us impressed. It’s hard to believe how much Bennie’s grown since his emotional birth on “16 and Pregnant” (wasn’t it just yesterday?) but this pic posted on Maci’s Instagram is clear proof that the kid’s no longer a baby. At 4 years old, Bentley is a force to be reckoned with, and his mom knows it full well.

“Uh oh pre-k here comes Bentley… eek!” Maci captioned her photo collage of his first day of school gear.

Destined for pre-K greatness with a mohawk, a Mario backpack and two tickets to the gun show, courtesy of his sleeveless tee, Bentley looked like he was ready to kick grass and take names. Or steal all the little girls’ hearts.

Look out, Maci, you’ve got a heart-breaker on your hands!

Tell us what you think of Bentley’s mini-punk rocker style, and be sure to catch his cute mug August 19 at 11e/8p during MTV’s “Teen Mom” follow-up special, “Being Maci.”