Sharon Osbourne left her son Jack red-faced when she flashed her surgically enhanced breasts to his friends.

Sharon was so pleased with the results of her boob job – which boosted her bust size to a massive 34DD in July 2005 – she couldn’t resist showing off her new charms to her son’s pals.

Jack said: “Mum came in and asked my friends if they liked her new t**s, before she lifted up her shirt and flashed to my two best friends.”

Jack – who stars in his own reality TV show “Adrenaline Junkie” – has also revealed he is glad to have finally kicked his drug and alcohol habits after two stints in rehab.

He said: “My life is now totally different and most important thing is my family.”

Jack, 21, shot to fame at the early age of 14 when he starred in the MTV fly-on-the-wall show “The Osbournes” with mother Sharon, father Ozzy and sister Kelly.