Meghan Markle and Kate Middleton's friendship continues to grow.

It was reported that the Duchess of Cambridge struggled at the early stages of her pregnancy. In fact, she missed a lot of royal engagement due to severe morning sickness or hyperemesis gravidarum. At seven months, Middleton is plagued with the same problem,  it's a good thing that Markle is there to make things better for Middleton.

Middleton and Markle are living near to each other at the palace. Prince Harry's fiancée makes use of this to visit Prince William's wife from time to time to share a cup of tea or offer some healthy tips.

"She shares tips she's read about healthy eating," a source told Us Weekly.

Whenever Markle visits Middleton, her future brother-in-law also makes sure that she is comfortable. Prince William has been supportive of Prince Harry's soon-to-be wife.

"William does all he can to make sure she's comfortable," the insider added. "He just wants her to feel supported."

Initially, Middleton and Markle were often compared as both had a great influence in fashion. But despite the comparison, they have maintained a good relationship.

In fact, during Prince Harry and Markle's first joint TV interview, the royal prince revealed that the Duke and Duchess of Cambridge were "longing" to meet the "Suits" star. Markle said that the royal mom was "wonderful."

Also, a day after Prince Harry and Markle announced their engagement, Middleton was asked for her comment. The Duchess of Cambridge said that they were "thrilled" for the couple.

 "William and I are absolutely thrilled,"  Middleton said. "It's such exciting news. It's a really happy time for any couple and we wish them all the best and hope they enjoy this happy moment."

 Middleton and Markle are expected to work together. The Duchess of Cambridge will reportedly be the "Horrible Bosses" star's mentor. Middleton will help Markle adjusts to royal life when she officially becomes one.

"I'm sure Kate will do all she can to help Meghan," a source from Middleton's hometown told People. "She had audiences with Queen Elizabeth quite often and was taught to behave like a future Queen."

Meanwhile, a source close to Markle said that the actress is "funny and serious and extremely hard-working". The insider added that the two women would likely click. "I can imagine Kate will find a great friend in her," the source added.