(FOX NEWS) -- A friendship between two co-workers in Wisconsin turned into an unexpected family reunion after a man discovered his friend on the job was actually his biological father.
Nathan Boos told WLAX-TV he was adopted at birth and never knew who his biological parents were.
"Growing up I always knew that I was adopted, it just never crossed my mind that I would ever find my parents,” he said Wednesday.
While Boos didn't know who his parents were, his adoptive parents did and just happened to notice recently that Nathan was friends on Facebook with his biological father. Boos said his adoptive mother pointed out that his biological father is a truck driver, just like him.
"She just went on my Facebook and went through my friends list and brought up his picture and I said, ‘Get out of here,'” Boos told WLAX.
That man was Bob Degaro, who has worked with Nathan at Rock Solid Transport in Chippewa Falls, Wis., for the past two years.
"It’s still kind of a shock and there's days I'm not sure exactly what to say or how to act," Degaro said. "I mean, he is my son but we didn't have that father son relationship growing up and then we became working partners before we knew who we really were."
Degaro cited financial stress as the reason behind the difficult decision to put Nathan up for adoption. He also has two other children with his ex-wife.
"Back then I wasn't much of a dad," he told the station. "His biological mom had chosen the adoptive parents because they were somewhat related, distant cousins, I believe, but I didn't know that."
The father and son are now building upon their newfound relationship, and Bob is planning to attend Nate's forthcoming wedding.