R. Kelly's Daughter Feels Terrible About Dad's Alleged Sex Scandals

R. Kelly's daughter is reluctantly sticking by her old man amid mounting sex abuse allegations that are reaching a breaking point ... 'cause she says that's what family does.

We got Joann Kelly -- who goes by her artist name, Buku -- in Atlanta Monday, where we asked about the ever-growing scandal surrounding her father, who's been accused of grooming young women to be "sex pets" while allegedly holding them against their will.