Credit: Twitter

Put your hands in the air like you just don't care and binge eat some cheese puffs, because it's time to party West Virginia style! Teen Mom 2's cutest kiddos, Aliannah Hope and Aleeah Grace, celebrated their fourth birthdays on December 16, and we're blown away by how quickly time flies when you're having fun and frolicking in hay bales.

Maybe this is just the moonshine talking, but it seems like just yesterday that Teen Mom 2's Leah Messer was welcoming her twin daughters into the world, and now they're a whopping 4 years old. Ali and Aleeah have gone through a lot in that time — not only did their parents get married and divorced, they got remarried to newbies, and the best part? They have an adorable baby sister named Addalynn!

Clearly there's a lot to celebrate this year, and Leah made sure to throw her ladies an amazing party. It looks like Ali and Aleeah had a pink cowgirl themed soiree, complete with feather cowboy hats, balloons, a cake with a cute horse galloping atop it, and a pinata. Fabulous!

Oh, and we're sure that both these little ladies were showered with gifts from their parents, who never fail to treat them like princesses each and every day.

Make sure to head over to Leah's twitter to wish her kiddos happy birthday —  we can't wait to see this whack pack family hit the small screen when Teen Mom 2 returns for its highly anticipated fifth season!