United Kingdom, Aug. 10 -- Hugh Hefner's son Marston Hefner has become a dad for a second time.

The 36-year-old writer and his wife, Anna Lambropoulos Hefner - also parents to a three-year-old son named Forrest - have welcomed a baby girl into the world.

Marston took to Instagram on Sunday (09.08.26) and posted multiple adorable shots, including himself and Anna cradling the newborn, as well as Forrest holding his sister, with the caption: "Life is forever changed.

"I can already feel space enter into my life where before there was activity, and knowing me, I will cling to building my career and finishing the novel, all the while furiously loving my new daughter.

"She will be everything soon enough. As I navigate this, I find myself g...