Sydney Lawrence, 17, from Crosby, Texas, didn't want to be embarrassed by not having a partner for her school's father and daughter dance.
So because her dad isn't in her life, Lawrence's aunt was happy to do the honours.
Kristen Roulet, 34, a police officer, told BuzzFeed News she didn't hesitate to tell her niece she would be there for her.
Lawrence said people loved what her aunt did for her.
"I never really knew my father, he never had a part in my life, and my mother is like my best friend. [She] and my aunt solely raised me," Lawrence said. "And I think having two women who love you insanely is better than having a father."