From hidden siblings to secret marriages, these are revelations they never saw coming.

"My dad used to travel across the border most of the time for his job, and he said he would get stopped every time, asking about my uncle. My dad and uncle never had the best relationship, so when he told them every time he didn't know and didn't care, and he meant it. He also helped raise my cousin and helped pay for his education."

Note: Some responses have been edited for length and/or clarity.