Photo: Christina Haack Instagram

Christina Haack and Josh Hall

Christina Haackis getting groovy with her fiancé.

“Heading out to that 70s party 💿 ✌🏼,” Haack captioned the snap. She also shared a video to her Instagram Stories of a shirtless Hall showing off some of his costume — and his retro dance moves (below).

Christina Haack Instagram Stories

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The couple’s latest outing comes two weeks after theyannouncedtheir engagement while vacationing in Los Cabos, Mexico, in late September.

Hall popped the question with anemerald-cut ringfrom Los Angeles-based jeweler Benny and the Gems, which Haack showed off in a smiling selfie from the trip. The relationship milestone came two months afterPEOPLE confirmedHall and Haack were dating in July.

christina haack/ instagram

christina haack new ring/ engagement

At the time, a source told PEOPLE Haack and her new man had “an immediate, real connection” from the start.

“They’ve enjoyed getting to know each other one-on-one without outside noise,” the source added.

TheChristina on the Coaststar laterrevealedshe had been seeing the Austin-based realtor since the spring, but kept their relationship secret for months.

“I met Josh when I wasn’t in a state of fear or fight-or-flight,” she wrote onInstagramin July. “When we met this past spring, the synchronicities hit us so hard and fast they were impossible to ignore. I felt immediately crazy protective over him and wanted to keep him for myself and get to know each other before the tornado (media attention) hit.”

Christina Haack/Instagram

Christina Haack Celebrates Josh Hall’s Birthday: ‘That Teenage Kinda Love’

Since the couple took their relationship public, Haack has shared plenty of their adventures with her followers, including Hall’svisitsto her new Tennessee home,family tripswith her now-fiancé, and veganlunch datestogether.

Just before revealing her engagement, Haack posted a sweet birthday message for Hall onInstagram.

source: people.com