Tiffany Trump enjoys ANOTHER weekend at Donald's Mar-a-Lago estate with Democrat boyfriend Ross but still remembers to wish half-brother Barron a 'happy 10th birthday' 

Tiffany Trump seems to have spent the past two weeks doing little more than lounging around on the beach and traveling with her boyfriend Ross Mechanic, but she didn't let all that sun-filled fun stop her from wishing her younger half-brother a happy birthday.

The 22-year-old took to Instagram on Sunday to share a photo of brother Barron posed alongside her and their older siblings Donald Jr., Eric, and Ivanka in celebration of his 10th birthday.

'Happy 10th birthday to my little brother!' she captioned the sweet photo, which sees her playfully tugging on the youngest Trump sibling's tie.

Happy couple: Tiffany Trump and her boyfriend Ross Mechanic spent the weekend at her family's Mar-a-Lago estate in Florida 

Big sister: On Sunday, Tiffany took to Instagram to wish her half-brother Barron (center) a happy 10th birthday and share a photo of him all four of his siblings. Barron is pictured with his parents Donald and Melania Trump

Tiffany was Barron's only sibling to give him a birthday shout out on social media, although it is likely that as the youngest of Donald's five children, the brother and sister duo may have an extra special bond.

And while Donald Jr., Eric, and Ivanka are all The Donald's children with his first wife Ivana Trump, Tiffany's mother is his second ex-wife, 52-year-old actress Marla Maples; Barron is the only child of Donald and his third wife, Melania Trump, 45.

In recent months, the Trump siblings have been spending more and more time together as they join together to support their father's presidential campaign. 

Barron, who has his own floor in the Trump penthouse in Manhattan, is no stranger to luxury, and he could be living in the White House in the near future if his controversial father nabs the Republican presidential nomination and goes on to with the 2016 election. 

First family? Tiffany (far right) is pictured on stage with her family after 69-year-old Donald announced his candidacy for the US presidency at Trump Tower in June

Beautiful day: Two weeks ago, Tiffany and Ross were enjoying the sunset during their spring break trip to the Bahamas 

Meanwhile, Tiffany is enjoying her senior year at the University of Pennsylvania in Philadelphia, spending every break she gets at her father's Mar-a-Lago estate in Palm Beach, Florida. 

Although her school's spring break vacation officially ended on March 14, Tiffany and her boyfriend Ross, who is also a student at the University of Pennsylvania, spent the weekend at the Florida mansion. 

Tiffany took to Instagram on Saturday to share a photo of herself standing alongside Ross as they pose in front of a extravagant bouquet of pink flowers and a chandelier. 

In the sweet snapshot, Tiffany looks stunning in a figure-hugging black dress featuring side cut-outs, while her liberal beau dons a blue button-down topped with a suit coat. 

Getting away from it all! Tiffany and Ross, who are both students at the University of Pennsylvania, enjoyed a sun-soaked getaway together in order to celebrate the end of their midterms

Much-needed getaway? Tiffany took to Instagram to share this beachside photo of herself, as well as plenty of other snapshots from their trip

It's unclear if the two took an extra week off from their studies as they could have easily hopped on a private plane to enjoy their weekend in Florida.  

Tiffany celebrated the completion of her midterm finals two weeks ago by embarking on a sunny getaway to The Cove Eleuthera resort in the Bahamas with Ross.

The blonde beauty took to Instagram to share a photo of herself standing on a grassy path in front of the aqua colored sea, looking beach ready in a loose-fitting cream and coral colored top tucked into frayed denim shorts as the ocean breeze blew through her wavy locks.

'Midterms,' she captioned a photo from the trip, using a check sign emoji to indicate that her exams were finally finished. 

Little mermaid: The senior at University of Pennsylvania went snorkeling - just a day after the official start of her spring break vacation

Supporting Donald: After their spring break vacation, Tiffany and Ross traveled with her brother Eric and his wife Lara as they headed to the GOP debate in Florida on March 10

Snow bunny: Tiffany is the only child of Donald and his second ex-wife Marla Maples. She and 52-year-old mother spent the Christmas holiday skiing at the Sundance Mountain Resort in Utah

Tiffany and Ross also sweetly posed for a photo as they stood overlooking an ocean bluff, and the next day she channeled her inner mermaid as she was photographed snorkeling in the clear blue sea.

Meanwhile, Ross posted a snapshot of them taking in the sunset on one of their last days in the Bahamas.

Ross, who is a software engineering student is a registered, active Democrat whose Facebook 'likes' once included Hillary Clinton, NARAL Pro-Choice NYC, and the Penn Green Campus Partnership for environmental sustainability and policy development before he fell for his girlfriend.

His parents are also registered Democrats, while his dad is a powerhouse of the New York real estate world - just like Tiffany's. And while he may not be voting for Donald, he and Tiffany appear to have put their political differences aside as their relationship continues to flourish. 

After their trip to the Bahamas, Ross joined Tiffany and her famous family to support Donald at the GOP debate, which was held at the University of Miami on March 10.