Olympic gold medalist Simone Biles posted about “happy thoughts” in the wake of her brother’s arrest in connection with a triple homicide in Ohio.

“Girls day to drink happy thoughts,” the 22-year-old gymnast wrote on Instagram with a smiling photo of herself and two pals.

Biles’ brother, Tevin Biles-Thomas, 24, was busted last week on murder, voluntary manslaughter, felonious assault and perjury charges for the slayings at a New Year’s Eve party in Cleveland.

Biles-Thomas was arrested while on active duty with the US Army and is currently in custody.

The two siblings were raised separately — Biles in Houston by her grandmother and step-grandmother and Biles-Thomas in Cleveland by an aunt.

Shortly after news of her brother’s arrest, Biles tweeted, “eating my feelings don’t talk to me.”