Paris Hilton cuddles up to her newborn baby boy Phoenix in heartwarming ... trends now

Paris Hilton shared a number of heart-melting snaps of her newborn son Phoenix to Instagram on Monday.

The socialite, 42, appeared to be fully enjoying motherhood as she snuggled up to her three-month old baby boy in the elegant black and white photos.

'My whole heart,' she wrote in the caption, adding a heart-eye emoji and a blue heart emoji, followed by the '#MommyMonday' hashtag. 

In the first snap, the Simple Life star looked stunning as ever, wearing a black slip dress as she tenderly held the little one - whose full name is Phoenix Barron Hilton Reum - in her arms. 

Paris welcomed her first child with husband Carter Reum, 42, in January of this year, via a surrogate.  

Though she's a busy mom-of-one now, the stylish star wore picture-perfect glam and had her blonde tresses styled to perfection.

Paris - who recently said she 'can't wait' to have 'a couple' more children - accessorized with two diamond stud earrings and showed off her huge sparkling engagement ring.

Another photo saw the DJ cozy up to the little one as he was laying down, wearing a little white onesie and hat.

Paris - who's been busy promoting her new book Paris: The Memoir - matched her baby boy in a white cashmere sweater.

The new mom couldn't get enough of her bundle of joy, sweetly gazing at him in yet another photo. 

Amid the perfectly-styled images there was also one of her with her eyes closed, as she enjoyed the blissful moment of cradling Phoenix in her arms. 

Her 23.2M followers were delighted by the adorable carousel of baby snaps, with sister Nicky Hilton Rothschild, 39, commenting three pink-heart emojis.

Another person wrote, 'i can already tell that you're an amazing mum!! ❤️ phoenix is so lucky to have you as a mother,' to which Paris replied with three blue-heart emojis.