Click on photos below for full gallery.
The Burberry model and the Hollywood actress were spotted together in Mexico, enjoying quality time after a few busy months. Cara, 21, had been walking the catwalk at various Fashion Week shows around Europe, while Michelle, 35, supported her from the front row.
CLICK ON PHOTOS FOR FULL GALLERY
The loved-up couple only had eyes for each other as they were pictured whiling away the days on the beach. Soaking up the sunshine and preferring to go topless, the London-born model showed off her washboard stomach and petite frame.
Michelle opted for a black bikini and looked just as svelte as she splashed around in the waves and cuddled up to her new girlfriend.
Both stars have kept their followers updated by posting photos on social media of their romantic break. Cara took to Instagram to upload a picture of herself snorkelling in the deep blue sea, surrounded by fish and bubbles.
She posted another close-up photo of her tanned legs and feet dug into the sand. "Mmmmmmmm best feeling ever," she wrote next to it.
Kate Moss and Cara to pose together for Burberry
The couple seem to have been exploring the local area and going on adventurous trips, as Michelle shared a photo of herself in a lagoon, holding up a turtle to the camera.
"I'm in love with Tulum," she wrote of the east Mexican city.
The Fast & Furious actress posted a series of photos from a horse-riding excursion, in which the Texas-born beauty posed on a horse.
"Wish I grew up with horses I've always loved them so much, but I can't ride like the Charro, he's the real deal. Love it bare back Indio style," explained Michelle, referring to the professional horse rider from the ranch.
Michelle looked to be on cloud nine in another photo of herself lying down, as she posted, "In a hammock, amazing how the little things in life can put a smile on your face."
The big-screen actress has previously gushed about her girlfriend at the early stage of their romance.
"It's going really well," Michelle said in February. "She's so cool. When we started hanging out I just thought she was awesome, and we have the best time together."
Cara and Michelle are said to have been introduced by mutual friend Rihanna at a party in New York last October and immediately hit it off.