Heidi Montag and Spencer Pratt have welcomed a baby boy.

Video via The Hills

We watched their romance bud and even witnessed their wedding day on reality TV show The Hills and now Heidi Montag and Spencer Pratt have welcomed their first child into the world.

Montag gave birth to their baby boy, Gunner Stone, on Sunday afternoon, Us Weekly reports.

“Heidi and Spencer are proud parents of a healthy baby boy as of this afternoon,” told the celebrity and entertainment magazine.

The rep said the little boy weighs 3.06kg (6 pounds, 12 ounces) and has blond hair and blue eyes.

This year has been a baby boom for former cast members of The Hills. Lauren Conrad welcomed her own son Liam James in July, while Whitney Port gave birth to her son Sonny Sanford a few weeks later.

The happy couple, who rose to fame playing “professional reality TV villains”  had recently celebrated their pregnancy with a glorious photoshoot. 

Winter is Coming ???? @maddiecordoba ???? @radstella ???? @kendyyy ???? @cakedbycatt

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A post shared by Spencer Pratt (@spencerpratt) on

When announcing their pregnancy in April, Montag told Us Weekly that she had “never been more excited”.

“The reality is sinking in that we are going to have a child! I’ve read every pregnancy book, and now I realise I don’t know anything.”

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