The actress' real father Ricardo Gomez and his wife just welcomed a baby girl in June. Her name is Tori.
"Time flies.... It seems like just yesterday we found out we were having a baby. And now our baby Tori is 1 month. So blessed and grateful," Selena's dad captioned a pic he posted of Tori on Instagram on July 24.
Just a year ago, Selena's mother Mandy Teefey gave birth to her other half-sister Gracie. Her dad is Sel's step-father Brian Teefey. Selena's bragged about her, posting several pictures online.
There doesn't seem to be any bad blood between Selena and her pops, though. He posted a picture and message to her on her 22nd birthday a few days ago.
"To the world you are an amazing, talented, caring and beautiful young woman. To me your not only all those things, you are God's greatest gift..... Happy Birthday Mija !! I love you."
Did you know Sel had another sister? Think Tori looks like her?