"I have the BEST girlies in the whole wide world," Jenna captioned a series of Instagram photos on Wednesday.
Jenna wore a sexy black dress with a slit up the leg for his big night out on the town.
"They somehow managed to throw me the most epic bachelorette party on the road... including surprising me by taking me to see @absinthe_vegas and then transforming our bus into a GIRLS ONLY party bus. I feel so grateful to have these beauties in my life!!!!!" Jenna continued in her post.
Val, 32, proposed marriage to Jenna in June 2018 in Venice, Italy, after dating on and off for two years.
Earlier this week, Jenna also shared a photo of herself trying on a beaded, form-fitting wedding gown on Sunday.
"As [the DWTS] tour is coming to an end, the realization that I am getting closer and closer to being married is hitting me!! It has been a crazy whirlwind trying to plan my dream day on the road as well as dance my heart for all our beautiful fans at night," Jenna wrote alongside the image.
"I'm forever grateful for these past few months and even more excited for what's to come. (PSA... NOT MY WEDDING DRESS. Just one of the many I tried on and loved)."
Jenna and the two-time mirrorball trophy champion rekindled their romance and went public with their love later that year. Rumors they got back together sparked in June 2017 when they were spotted vacationing in Europe together.
The pair then exchanged a passionate kiss on the Season 25 finale of Dancing with the Stars and they've seemingly been inseparable ever since.