Katie Yeager shows off her new inner-arm ink.

Katie Yeager's no stranger to ink. The "Teen Mom 3" cast member already sports a number of tats, from a Shakespeare quote on her shoulder to a tiny dotted bow on the inside of her finger, but her latest trip to the tattoo parlor was especially meaningful, because it involved inscribing a tribute to her daughter, Molli, on her arm.

While Katie's fellow teen mom, Alex Sekella, had her daughter Arabella's footprint tattooed on her shoulder during filming, Katie just got Molli's birth date inked on her inner arm a few days ago, and shared her new piece with her Instagram followers straight from the parlor. "The reason behind my strength 8-18-11," she posted with the photo above. While it's definitely more subtle than Amber Portwood's portrait of daughter Leah, the sentiment is the same: Their kids mean the world to them. And just so you know, the pain of the needle is NOTHING compared to childbirth!

+ Check out the "Teen Mom 3 After Show" clip below to hear Alex explain why she got her tattoo, and let us know what you think of Katie's in the comments!

Amber Portwood's belly tattoo of daughter Leah's face.

Alex Sekella admires her brand new tattoo of Arabella's name and footprint.

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Photo: Katie Yeager's Instagram, Star magazine