"The wind is not ideal for the balloons," Natalie realized. "This keeps twisting in the f--king wind," an irritated Olivia said as she tried to hold the balloons in place.
After struggling to spell out the word "engagement" with the super-sized balloons, the girls finally get it together.
"Engagement: E, N, G, nope, yup, A," Olivia and Natalie recited.
Watch the hilarious moment in the clip above.
Watch the two-hour season three finale of WAGS Sunday at 10 p.m., only on E!