Two young boys in the US, who were playing at a pool last summer, were in for a shock when they discovered that they were brothers.
For Isaac Noltin, 12, and Dakotah Zimmer, 13, there was more than that met the eye with their similar appearances.
Dakotah told Isaac that he knew he had a brother he'd never met who was adopted by a woman named Dawn. "That's my mom's name," Isaac responded.
The touching story of how Dakotah and Isaac met is one of anxiety for Isaac's adoptive mother, Dawn Noltin.
Noltin, who works as a manager for a dry-cleaning company, told her story to TODAY.com, saying that she wrestled with when to tell her son that he was adopted.
For weeks before Isaac and Dakotah met, she had been asking her friends and pastor how to tell her son that he had a brother, but knew it had to be before the boys started school, the Daily Mail reported.
They would be attending the same middle school in Washington, Missouri and would surely find out one way or another.
The night after Isaac and Dakotah met, Isaac approached his mother and asked if he was adopted.
When Nolting, 42, asked why he thought that, her son responded: "Because I think I found my brother."
The mother and son both started crying. "I was so happy that I had a brother," Isaac said. "I had always asked for one."
Nolting had met Isaac's mother several years ago when she was heading out to dinner with her ex-husband. A friend of Nolting's ex-husband invited them to meet his girlfriend and their newborn son.
The 16-year-old mother had just given birth to Isaac nine days before, and also had a one-year-old son - Dakotah.
Noltin had been a single mother herself, having her own daughter at 19.
She said that her maternal instincts kicked in, and she offered to take care of the newborn.
Months passed, and Noltin received a call that Isaac's biological mother was pregnant again. The woman's grandmother asked if Noltin wished to legally adopt Isaac. Eighteen months later, and Isaac was legally hers.
Isaac and Dakotah's biological mother died in 2007, and their biological father died a year later.
Dakotah and his older sister, Ashley, live with their biological grandmother - Debi Bay. (ANI)