After mounting speculation that Lilly's midriff has been showing signs of a baby bump, her grandmother seemed to confirm this week that the 30-year-old Dutch beauty is pregnant with her first baby.
"Yes, I have waited so long for Lilly to finally have a child," Esseline Brady told German newspaper Bild. "I am so pleased."
Boris, 41, and his beautiful bride tied the knot in an intimate Alpine wedding on June 12 this year – as featured in HELLO! – and since then have spent most of their time on an extended holiday in the French Riviera.
Onlookers have said that the brunette model has avoided drinking alcohol with her meals and that her husband has been seen tenderly stroking her tummy, the Daily Mail reports.
Wimbledon champ Boris is already a dad to three children. He has two sons, Noah Gabriel, 15, and nine-year-old Elias, from his first marriage to actress and designer Barbara Feltus, which ended in 2001.
He also has a nine-year-old daughter called Anna with Russian model Angela Ermakova.