'My Big Fat Gypsy Wedding': Prom Dress Causes Problems In Exclusive Sneak Peek (VIDEO)

On "My Big Fat Gypsy Wedding" (Fridays at 10 p.m. ET on TLC), it's typically young gypsy and Irish Traveler wives that viewers see in massive, brightly-colored gowns, attempting to stuff themselves into horse-drawn carriages to say their "I do's."

On this week's installment, the dress is just as big, but the venue is different. Cassa is the only traveler going to prom and that, along with her pink dress, causes some big problems. "It's like a bouncy castle on her legs," one fellow teen comments of the ensemble. But Cassa's sister, 14-year-old Lottie worships the bubblegum-colored gown. "She looks like a Barbie slash princess and then, slash Rapunzel because of her hair," Lottie says.

Though Cassa's mother arranged for a stretch Hummer to drive her to the prom, the school insists she take the bus that students are required ride in order to get to the evening's festivities. The problem is ... Cassa's dress won't fit.

Find out what happens in the exclusive clip above and tune into "My Big Fat Gypsy Wedding" this Friday, April 6 at 10 p.m. ET on TLC to see the dress drama unfold.