Vincent Mosby signed a marriage contract and paid a dowry in a religious ceremony in August, police said.
Mosby, 23, of Kansas City didn't legally wed his 14-year-old bride, however, because Missouri law won't allow it without a judge's order. Police said she was pressured into the union because her mother and stepfather thought she was going to be sexually active with a boy her age.
Although the bride's stepfather arranged the "marriage," according to court records, other relatives frowned upon the union and told police in late August. The relatives also took the girl to protect her from further sexual abuse, according to court records.