Meet Keegan Carnahan. She's a 15-year-old from Florida.
And this is Alidy, a 3-year-old she babysat on Wednesday.
"[Alidy] had decided to wear her little mermaid outfit around the house that day and I thought it would be a fun surprise to bring out mine for her bathtime," Keegan told BuzzFeed News.
Look at how happy she is!
People are so touched by Keegan's next-level babysitting move.
They cannot handle the sweetness of the mermaid moment.
People want her as a babysitter.
So many people called her the best ever.
Haslam said that the moment brought her daughter, and subsequently her, a lot of happiness during a hard time.
Alidy has worn a costume every day since her dad died in November.
"But nobody ever matches with her," Haslam said. "She finally found someone to connect with again."