Arie Luyendyk Jr. and Lauren Burnham are expanding their brood. 

Just two months after The Bachelor alums—who also share kids Alessi, 5, and twins Senna and Lux, 3—revealed Arie had undergone a vasectomy reversal to try for another kid, they have revealed their fourth baby’s sex. 

In an adorable video of the family shared to Instagram April 15, Ari and Lauren wrote in the caption, “The baby is a…”

The ensuing clip shows the soon-to-be parents of four popping balloons to reveal pink confetti, revealing they will be having another baby girl. In another photo of the family indulging in pink cake, the couple gushed in the caption, “We can’t wait to meet you baby GIRL.”

And the baby’s sex was a shock to both Arie and Lauren, who donned blue clothing for their party and guessed in an earlier video they were going to have a boy. 

“I think it’s a boy,” Ari explained in a video shared just before their sex reveal. “This pregnancy feels different so, team boy.”