A heart transplant patient has fallen in love with the sister of his organ donor.
According to London's Daily Mirror, Minneapolis resident Connor Rabinowitz suffered a congenital heart condition underwent a transplant at just 17.
A year after the successful surgery, Mr Rabinowitz wrote a letter of thanks to the family of heart donor Kellen Roberts.
Mr Roberts died after he sustained head injuries during a drunken brawl in his home state of South Dakota, the Mirror reports.
His sister Erin Roberts, 26, met her brother's recipient and it was "love at first sight".
The Daily Mirror reports that while Mr Rabinowitz was only 17-years-old when they first met, the chemistry between the pair persisted until they finally hooked up in 2010.
"We had an instant connection," he said. "We both feel that Kellen bought us together."
Mr Rabinowitz was a fit teenager when he began to suffer flu-like symptoms in November 2004.
One morning he woke in a cold sweat and could see his enlarged heart beating up through his chest, the Mirror reports.
He had mixed feelings about the transplant.
"It was the best day of my life but I knew someone had died for me," he told the Mirror. "I felt undeserving, that I had something to do with this person's death. I struggled with that for a while."
He wrote to Mr Roberts' family during his recovery.
"Kellen's mother Nancy got in touch immediately and a few months later my mum flew to meet her. Six months after that I was well enough to visit too," he said. "It was an emotional meeting and as Nancy put her hand on my chest to feel Kellen's heart beating inside me, I saw Erin for the first time.
"We locked eyes - and I was smitten. Erin felt the connection too but she tried to dismiss it, thinking I was too young.
"She took me sightseeing for the weekend and we felt so comfortable together, like we'd known each other our entire lives. I visited twice more and felt the same, but we were both dating other people."
School assistant dismissed the connection as a "teenage crush" and the pair lost contact for five-years. They reconnected on Facebook in 2010.
"We were both single for the first time and everything just fell into place," Mr Rabinowitz said.
"I know he (Kellen) brought us together and I know he is watching over us.
"All of the family tell me stories about Kellen. He is always in my thoughts - and obviously in my heart. He was a great guy - he always looked out for people. Through him, I hope I can do the same. If I was to meet him today, it would be like meeting my other half.
"I was now forever connected with this young man who sacrificed his life and chose to save mine.
"He is my hero, my guardian angel and I will be forever grateful for his decision to donate his organs."