Sydney Sweeney, Scooter Braun romance faces biggest challenge yet as expert warns couple to 'be prepared'

Sydney Sweeney and Scooter Braun's relationship reached a new milestone one year after the pair first met.

The power couple was recently spotted on a casual smoothie date with his two children in Los Angeles, Calif., according to images obtained by TMZ.

While Sweeney, 28, and Braun, 45, have remained private about their budding romance, experts warned that the couple needs to "be prepared" now that kids are part of the relationship.

SYDNEY SWEENEY, SCOOTER BRAUN PACK ON PDA DURING...