Singer-actor Selena Gomez is all set to become an elder sister for the first time as her mother is expecting a baby.
The 19-year-old, who is currently an only child, is thrilled that she will finally be a big sister as her mom Mandy and stepfather Brian Teefey are expecting their first child together.
"Momma and (stepfather) Brian are finally letting me share the news. My mommys carrying my baby brother or sister. I'm the happiest girl in the world (sic)," Gomez wrote on her Twitter page.
Gomez's tweet was accompanied by a black and white shot of her stepfather cradling her mother's belly.