Heartwarming Reason Mom Let Her 15-Year-Old Daughter Get a Tattoo

And she doesn't care what anyone thinks.

An Idaho mother let her 15-year-old daughter get a tattoo and she's not concerned what others think about the decision.

And that's because of what motivated it: Diana Register's police officer husband passed away from pancreatic cancer a couple of years back and her daughter, Kaitlyn, wanted to honor the father she lost while so young.

"I don't care what people think of the fact that I let her get a tattoo," Diana Register told InsideEdition.com. "I think that those people who might be judging us are people who have maybe not suffered the kind of loss that she has."

Kaitlyn, like her older sister, got her father's badge number in Roman numerals tattooed on her foot in order to always remember him for the hero he was.

"When I look at it I think that, obviously, I think of my dad and I think of how it's cool to have something like that on me forever," Kaitlyn said.

Diana Register also holds a special place for Chad, not only in her heart, but on her foot as well.

There, she has a tattoo of Chad's heartbeat from an EKG she got from the hospital just before he died.

"I don't ever want to let him go," Register said. "That was one way to keep him close."

Register has turned her and her daughters' grief into a bestselling book called "Grief Life," which is now available in print and Kindle editions.