Sisterly love! We may not get to see much of Kailyn Lowry's sister, Mikaila Shelburne, but that doesn't mean their bond isn't strong. Most recently, the Teen Mom 2 star's lil sib posted a sweet snap with Kail on her birthday.

"I feel like it's been so long since we've seen each other," Mikaila wrote in 2016. "Hopefully that'll change sometime soon! HAPPY BIRTHDAY YA HOT MOMMA I LOVE YOU." BRB, crying.

Mikaila, 21, is from Waco, TX — according to her Facebook page — but it's reported that she now lives in Crawford, TX. Her Instagram bio states, " Texas born & raised."

The blonde beauty graduated from Crawford ISD in 2014 and from Waco Dental Assistant School in 2016. As of June 2017, she's a Registered Dental Assistant (RDA) at Belton Total Dental & Orthodontics. Go, girl! If you recall, Kailyn graduated from Delaware State University with her Bachelor of Arts degree in Mass Communications last May.

Although it's not exactly clear how often the two talk, they still keep in contact based on recent social media posts. In 2015, Mikaila tweeted, "So grateful for my sister! So happy I got to see you yesterday! Love you @KailLowry," to which Kailyn replied, "love you sister! I'll see you soon!!!" Someone book these two a flight — chances are, she still has yet to meet her nephew, Lux!

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Scroll through the gallery below to see all of your favorite Teen Mom stars' siblings!