The decision to become an organ donor for someone you know and love can be a daunting one.

And to offer that gift to someone you’ve never met or have known only a very short time — that is a beautiful and incredibly rare, unselfish act.

The family of Talia Rosko, who was born with a life-threatening liver disease and given only two years to live, knows this all too well. It’s why they can’t believe the gift they’ve been given.

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The Roskos hired New Jersey college student Kiersten Miles last summer to care for their three children. Their daughter Talia was only nine months old when Miles started watching her. A month into the job, understanding how sick the little girl was, Miles went to her parents and offered to be her donor.

The two underwent their donation and transplant operations in January in Philadelphia. Both are said to be doing well and recovering.

“Some of her doctors said she possibly wouldn’t have made it past two years old,” Miles told WTXF-TV, the Fox affiliate in Philadelphia. “All I had to do was be in the hospital for a week and [have] a five-inch scar. I don’t know, it just seemed like such a small sacrifice to me.”

Related: The Promise of Printed Organs

This very giving babysitter is hoping the case raises awareness about the importance of organ donation in general, whether the donor is living or the donation is made after a person is deceased.