Paris Hilton has made it clear she isn't scared of defending her children online after trolls made cruel comments about her son.
Hundreds of horrific comments have been left under her posts of the 10-month-old tot, teasing him for the size of his head.
She said she 'feels sorry' for anyone who spends their time trolling a child online, suggesting they must be very 'miserable' in their own lives.
The hotel heiress was forced to leap to her son's defence in the comments section of her own posts when cruel people flooded them with abuse.
Paris insisted Phoenix is 'perfectly healthy', adding that 'of course he has been to a doctor, he just has a large brain'.
She has now warned trolls she will not stand for any vile comments made about her first born - but admitted she had been rocked by the whole saga.
She told People: "Usually, I wouldn't even dignify anything like that with a response, but I was just heartbroken that there are such cruel people in the world.
"I couldn't believe that they could be mean and vicious about a little innocent baby.
"You can say what you want about me, but this is my little angel. And if anyone ever says anything to hurt him or his feelings, I will always be there to protect him."
Paris, who is married to entrepreneur Carter Reum, said she also managed to find a silver lining in the midst of the online bullying.
She explained that she had received tons of support from fans and fellow mums, which 'meant a lot to her'.
The Simple Life star continued: "It makes me feel so grateful knowing that there's so many people in the world that love and support me.
"Sticking up for me meant the world to me, and to have people looking out for Phoenix in that way, it meant a lot."
The youngster recently became a big brother, with Paris announcing the news that she had welcomed a little girl in an adorable Instagram post on 23 November.
The DJ shared a snap of a pink Peter Pan collared top with the name 'London' embroidered, alongside a pair of sunglasses and a knitted bunny.
She said her life now feels 'complete' after the arrival of her second child and said the entire family is 'just over the moon that our little princess is here'.Featured Image Credit: Instagram/@parishilton