Even in her wildest dreams, Caitlyn Jenner could never actually picture herself in a wedding dress.

It has now been almost a year since Jenner transitioned into a woman and, in a sneak peek clip from Sunday's episode of "I Am Cait," the reality star got to do one thing many women dream about - try on wedding dresses.

In the clip, Jenner's friend and fellow trans woman Candis Cayne is the first one to try on a wedding gown. Then, the former Olympian decides to put on one for herself. The 66-year-old chose a tight white lace mermaid style dress that featured long sleeves and a sweetheart neckline. She jazzed the garment up with some teardrop dangling earrings, and pulled some of her hair back.

"Can I do the walk?" Jenner asked her friends when she came out of the dressing room.

"Jesus Christ!" she then screamed when she saw herself in the mirror for the first time. "Oh my God, what do you think?"

"That is flippin' stunning," Jenner's friend Ella Giselle told her.

"I think it looks great," Cayne replied.

"Did I ever think that this day would come? No. I've been to three weddings, OK, with the most boring clothes on in life," she told the camera about her nuptials to her three ex-wives, Kris Jenner, Linda Thompson and Chrystie Crownover. "Finally, I get to wear something comfortable."

Canye and Jenner did not just model their stunning new dresses, the two even partook in a fake wedding ceremony.

"Candis and Caitlyn, I now pronounce you trans bride and trans bride," one of their friends told Jenner and Cayne. The group then cheered while they embraced for their fake ceremony.

In an on-camera interview, Cayne explained why it was such a big deal for herself and her fellow trans women to see themselves in wedding dresses.

"For me, trying on this wedding dress, I kind of am seeing as a little bit of an affirmation of what I could possibly want have happen to me," she said. "For almost all of existence, that wasn't even an option for trans women."

"I Am Cait" airs Sundays on E! at 9 p.m. ET.

Check out the full clip below: