Kaitlyn served as a bridesmaid at her pal's nuptials, and shared a snap of her stunning makeup and side-swept 'do.
"Side note -- I cried about 13 times and not once did my makeup run," she joked.
Kaitlyn and Shawn have been engaged since the season 11 finale of The Bachelorette, when the 29-year-old private instructor proposed after winning Kaitlyn's heart. ET caught up with the couple in January at Bachelorin Paradise's Jade Roper and Tanner Tolbert's wedding at the St. Regis Monarch Beach resort in California, where they explained why their wedding hasn't happened yet.
"We're so bad at planning, both of us together," Kaitlyn laughed. "So, we're like, 'Yeah, we'll do it in the new year!' We're the kind of people, I think, that if people tell us to do something or if there's pressure, we're like, 'Well, now we're gonna wait! We don't have to do what you say to do, we're going to take our time!'"
"We talk about kids more than we probably talk about wedding," she added. "We're the most excited for kids."
In the meantime, the couple clearly appear to be enjoying their long engagement.