Lauren Sanchez looked sensational as she stepped out her Amazon billionaire fiancé Jeff Bezos as he continued his 60th birthday celebrations in Milan on Sunday.

The couple has been seen out and about in Italy during Milan Fashion Week and they were seen heading out hand-in-hand together this weekend after businessman Jeff celebrated his milestone birthday on Friday.

Former news anchor Lauren, 54, ensured she caught the eye in a low cut sheer floor-length dress with lace detail.

She showed off her hourglass figure in the garment which featured a structured top section.

The media personality completed her look by wearing a black jacket over her shoulders and added a few inches to her stature by wearing a pair of open-toed heels.

Jeff wore a black velvet suit which he teamed with a shirt in the same colour, which he wore open at the collar.

The entrepreneur shielded his eyes behind a pair of dark sunglasses for his outing.

On Friday, Lauren shared an adorable throwback photo of Jeff, along with a gushing tribute for his 60th birthday.

The businessman turned 60 years old on January 12, and his bride-to-be celebrated the milestone with a touching message to him on Instagram.

The former TV star wrote about how Jeff’s ‘laughter fills their home,’ and thanked him for ‘giving her a reason to smile every single day’ in the sweet post.

‘Look who’s turning 60,’ she began. ‘Happy birthday, baby. Today is another day where your laughter fills our home, and that smile of yours lights up every room.

‘Wishing you an abundance of simple joys and quiet moments of happiness. May this year be filled with everything you love, from peaceful mornings to joyous celebrations.

‘I hope each day brings you countless reasons to smile, just like you give me a reason to smile every single day. Love you, and happy birthday, my love.’

Along with her loving caption, Lauren shared a snap of Jeff as a toddler, taken on what appears to be his second birthday. In the photo, young Jeff is sat at a kitchen table in front of a big chocolate cake that had two candles in it.

Little Jeff donned a red, white, and blue striped T-shirt and overalls, and munched on a piece of food.

On her Instagram Stories, Lauren revealed that they were celebrating his birthday in Paris, France. She posted a pictured from their hotel room – which boasted a stunning view of the Eiffel Tower out the window.

‘Best morning with the birthday boy,’ she captioned it.