: "Samantha has every right to celebrate the birth of her niece or nephew in Spring and will talk about her connection to Meghan, as they are family.
"She does not have an outlandish lifestyle so the money will make a difference to her. She has never been given a penny by Meghan so she has every right to earn her own money in this way."
The claims come just days after half-sister Samantha attacked Meghan as a "narcissist" after pals tried to stick up for the pregnant duchess.
Samantha Markle, who has regularly used social media to criticise her younger sibling, unleashed a string of tweets trashing claims Meghan had tried reaching out to their dad Thomas Sr.
She has never been given a penny by Meghan so she has every right to earn her own money in this way
A source told The Mirror Five close friends revealed Meghan wrote to Thomas Markle after her wedding - which he had missed - in an attempt to rebuild their relationship.
But the former actress was devastated when he responded by asking for a photo shoot with her and did not respond to text messages.
After the story was released, Samantha was quick to react, saying : "This article is total bulls*** there are plenty of text messages and receipts to prove otherwise. Stop the PR crap."
The American - who said Meghan had "lie-abetes" also shared a message, saying: "When a narcissist has lost control over you, they try to control how others see you."
She then added: "And if the narcissist is wealthy they pay very expensive PR teams to change the way people see you."
She also hit out at Meghan's friends speaking anonymously, saying: "'Sources say' means imaginary sources'."
Meghan's five friends told People: "We want to stand up against the global bullying we are seeing and speak the truth about who our friend, a mother-to-be, really is."
They continued: "We worry about what this is doing to her and the baby. It’s wrong to put anyone under this level of emotional trauma, let alone when they’re pregnant."
The pals vehemently defend the Duchess and reveal she was devastated by her father’s response to her letter and did not talk to him after that.
They also claimed that Meghan's half-brother Tom and half-sister Samantha were “not a part of her life”; her religion and prayer have got her through tough times and that criticism of her sending emails at 5am is such a “weird slant” on someone who is “organised, diligent, focused, hardworking”.
Samantha Markle said the People article was 'bulls***' Samantha Markle claimed the sources were 'imaginary' Samantha hit back at claims Meghan had been helped by her religion through tough times Credit: Twitter The American appeared to call her half-sister a narcissist Samantha Markle slammed the 'expensive PR teams' The string of cruel tweets were shared by Samantha Markle in response to the story
Meghan Markle's mother will play a 'pivotal role' in baby's life as she is determined not 'to rely on Harry', says royal expert Victoria Murphy on Today Show We pay for your stories! Do you have a story for The Sun Online news team? Email us at tips@the-sun.co.uk or call 0207 782 4368 . You can WhatsApp us on 07810 791 502. We pay for videos too. Click here to upload yours.