Paris Hilton has once again addressed the cruel comments trolls made about the size of her son’s head just days after revealing that she had welcomed a second child named London.

The 42-year-old said that her motherly instinct kicked in when she saw internet users poking fun at her 10-month-old son Phoenix on the Internet.

She told People on Tuesday that her ‘mama bear instincts’ had come out as she can usually ignore criticism but couldn’t stand it this time around as it was in regards to her infant son.

Paris said: ‘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.

The heiress said it would have been a different story if she was the one who was on the receiving end of criticism but she couldn’t bear the thought of Phoenix being made fun of.

She explained: ‘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.’

Last month the socialite was forced to hit back at trolls who made vile comments about the size of her baby son’s head.

The socialite, who welcomed Phoenix via surrogate, posted sweet snaps of her son’s first trip to New York City to Instagram on Friday, October 20 – but the comment section was swiftly flooded with cruel remarks.

Fans also took to TikTok to condemn the rude remarks with Hilton responding to a follower who defended her and saying her son is healthy.

She wrote: ‘There are some sick people in this world. My angel is perfectly healthy.

‘And yes, of course he has been to a doctor, he just has a large brain.’

Hilton shares her son with husband Carter Reum, 42.

The images posted by Hilton last week saw her proudly pose with her son on her lap clad in head-to-toe Burberry fashion with a plaid top, slacks and little shoes.

Days ago she surprised her fans on Thanksgiving by announcing she has welcomed a baby girl named London.

The star shared the happy news by posting a pink baby outfit with the name ‘London’ – thereby revealing the gender and name of her little one. ‘Thankful for my baby girl,’ the heiress wrote in the caption of the image.

After initially confusing fans by not revealing if the baby was on the way or had already been born, Paris clarified in a TikTok comment that her daughter has already arrived, writing: ‘My princess has arrived!!’

This is her second child with husband Carter as the pair welcomed aforementioned son Phoenix via surrogate in January.

DailyMail.com has reached out to representatives for Hilton for comment.

Paris also shared a sweet snap of her baby boy to Instagram Stories, proudly calling him a ‘big brother’.

After announcing the news on Instagram, Paris took to her TikTok with a sweet clip of her nephew and niece, whom she asked: ‘Are you guys excited for your new cousin?’

‘You have two babies?’ they inquired.

‘I have two babies,’ she confirmed. In the clip her she was seen holding her son.

‘Priceless moments Family is everything,’ she captioned the clip.

While the news of her second child’s arrival has come as quite the surprise, the name itself does not.

Hilton opened up in a live chat episode of her podcast on March 1 that she had picked out the name London if she ever had a daughter over 10 years ago.

‘I’m really excited for Phoenix to have a baby sister one day—named London. It’s my favorite city and I’ve always wanted to name my daughter London,’ she said.

‘I had actually picked that name for a long time now, probably over 10 years. I always wanted London. I love that name for my daughter,’ she added.

The heiress named after the French capitol clearly wanted to keep the city-naming tradition alive with her kids, admitting Phoenix wasn’t easy to come up with.

‘It was hard to pick (Phoenix) because a lot of the cities that I like just wouldn’t sound good as a name,’ she said.

‘Like Ibiza would be so weird as a kids’ name, Vegas would be weird. It’s difficult to find a cool name that’s a city for a boy. Besides London, (because) that works for both,’ she said.