The model and actress is over in LA working on a new NBC sitcom pilot but was able to spend some quality time with her man on Monday (7 April).
And, um, can we say jealous?!
Kelly shared a slew of pictures via Instagram showing herself basking in the Californian sunshine while on a boat in the middle of a gorgeously blue Pacific Ocean.
Sharing a selfie of herself looking make-up free and totally chilled out, Kelly told her fans: "Day off! So we are cruising the Cali Shoreline."
Another picture showed her staring off into the deep blue sea. "Aww Malibu," she wrote. And, of course, she couldn't resist showing off her hunky shirtless fiancé as he steered the boat!
Kelly was taking a day off from filming US sitcom pilot One Big Happy, which co-stars Elisha Cuthbert and Nick Zano.
The 34-year-old plays a British woman called Prudence who impulsively marries an American guy and then gets sucked into his unusual relationship with a lesbian best friend, who he's just got pregnant as they both wanted a child.
Former Royal Marine and Gladiators star David has been over in the US supporting her.
Kelly and David became engaged in March after just twelve weeks of dating, but David's sister told Reveal that despite the fast courtship, they're made for each other.
"David is ready to settle down with Kelly, have a family and grow old with her," said sister Angela. "They both want kids and are both serious about their careers. I think they'll last the distance."
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Kelly and David aren't alone! Celebrities who announced engagements in 2014 below!
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