It's a wedding day disaster on the next Vanderpump Rules.
ET has your exclusive first look at Monday's all-new episode, which finds the SUR-vers prepping for Katie Maloney and Tom Schwartz's wedding. We know the couple made it down the aisle, but it wasn't easy getting there.
"Everything is perfect," Katie says. "Almost."
When it comes time for the 29-year-old bride to get dressed for the big day, she learns her custom gown no longer fits.
"I feel just a sharp pinch, something jabbing into my side," Katie explains. "They told me at the last fitting that they were going to put boning in, but this is painful."
"Maybe tacos and margaritas the night before you're supposed to slip into a form-fitting wedding dress is not the best idea," she adds.
Katie's bridesmaids come to the rescue though, dissecting the dress' new boning with scissors in order to make it wearable for Katie's walk down the aisle.
Vanderpump Rules airs Mondays at 9 p.m. ET on Bravo. Check out the video below to relive some of the cast's best, or worst, moments.