The 38-year-old mum posted an Instagram photo of herself and Harvey kissing on the lips on Sunday 31 July and was quickly met with criticism.
“Not another attention seeker,” one person wrote.
“This is so wrong,” another commented.
Although Price received some support for the photo, with fans calling it a “beautiful, mother-son moment”, she decided to let Harvey speak out.
Shortly after posting the kissing selfie, she uploaded a video of the teen with the caption ‘Harvey hits back’.
“Harvey, what do you want to say to people when mummy kisses you?” she asked her son in the video.
Harvey replied: “Leave my mummy alone, I want to kiss mummy.”
The short clip, that has been viewed nearly 250,000 times in one day, was criticised by fans.
“She shouldn’t be involving Harvey like she does he just a kid and he doesn’t need to be worrying that his mum’s upset,” one person commented.
“I think Katie’s a good mum but lets herself down with getting her kids to say stuff online.”
Another person commented: “Katie stop, don’t do this. It’s not ‘Harvey hits back’ it’s ‘Katie hits back’. Very wrong.”
This isn’t the first time Price has allowed one of her kids to “hit back” in a video message.
In response to the criticism, she shared a video of Princess saying: “By the way, I wanna do my makeup. Not my mum, I do.
“And anyway, it’s none of your beeswax!”
In July 2016, Victoria Beckham came under fire from fans after sharing a selfie kissing five-year-old Harper on the lips.
However parents came to her defence. Blogging on the Huffington Post, mum Samantha Rodman wrote: “Parents do loads of things with kids that sexual partners will later do, e.g. back rub, bath, hugging, laying with them in their bed, holding them close and cuddling, and, yes, kissing them on the lips.
“Why is a back rub or a bath or a cuddle okay and a kiss is not?”