The see-through garment also featured ovary cutouts.

Megan Fox has that post-engagement glow. She and her new fiancé Machine Gun Kelly (born Colson Baker) were spotted out in Milan following their romantic engagement in Puerto Rico on Wednesday.

For their potential mini-moon outing, Fox opted for an all-black outfit, departing from the stereotypical bridal whites. She wore an underboob-baring, netted midi dress with side and chest cutouts and a corseted torso. She paired the see-through garment with a leather trench coat that hung over her shoulders, matching lace-up heeled sandals, and layered necklaces. She kept her glam simple and wore her long dark tresses in perfectly tousled waves.

Megan Fox
Megan Fox
| Credit: Rex

MGK went a more colorful route with a vibrant fuchsia turtleneck sweater that he paired with plaid trousers and black boots with silver stitching. He layered on gun-metal and silver necklaces and statement rings to complete the look.

Earlier this week, the twin flames shared the exciting news of their engagement on Instagram. Fox posted a video of the sweet moment when MGK got down on one knee outside of the Spa Botánico at the Ritz-Carlton Dorado Beach in Puerto Rico.

"And just as in every lifetime before this one, and as in every lifetime that will follow it, I said yes," she wrote in her caption. Baker also posted the announcement to his page with a video showing off Megan's two-stone engagement ring.

Fox was previously married to actor Brian Austin Green, with whom she shares three sons, Noah, Bodhi, and Journey. Amidst the engagement news, a source recently told People that Green is happy for Megan. "As long as they're both on the same page with the kids, he's good and happy for her," the source said. "They're strictly co-parents. He's got another woman that he's super into. He's entirely moved on."