Molly hit her mid-teens today (31 August) and was treated to some pretty special presents thanks to her Atomic Kitten star mum.
Not only did she receive a sparkling Michael Kors watch, Molly was also presented with a chocolate labrador puppy thanks to Kerry's on/off partner George Kay.
Taking to Twitter to mark the occasion, Kerry tweeted: "Can't believe my first born is now 15! She's turned into a beautiful young woman! @123_mollymc happy birthday xxxx."
Unfortunately, the day was marred slightly after Kerry found herself coming under attack on social media for giving her daughter lavish presents, but Molly's sister Lilly was quick to jump to their mum's defence.
Sarcastically, 13-year-old Lilly tweeted: "It's so horrible having a wicked, twisted mother who will go to the ends of the earth to please me and my sibling. Grrr I hate my life."
She also slammed another troll, saying: "You're right, my mother is a vile person. I hate her all she got my sister is a choc lab puppy & a diamond mk watch, I'm ashamed."
Kerry, meanwhile, is more than happy for her daughters to defend themselves online. The star, who shares the girls with ex-husband Brian McFadden, told her followers: "Sooner or later people are gonna realise they shouldn't mess with my kids!"
In June, Molly hit back at online trolls via her mum during an episode of Loose Women.