Bill Gates' youngest daughter is all grown up!
The Microsoft Mogul's 18-year-old daughter just graduated high school and she's already celebrating.
Phoebe Gates is gearing up to head to Stanford in the fall, but before class is in session, she's soaking up the last few months of summer with her closest friends.
Gates' daughter is currently in paradise and posing in a bikini with her model bestie.
Phoebe took to social media to pose in her two-piece alongside her long-legged girlfriend.
Wearing a cute black and white striped bikini, the bronzed brunette smiled with the beautiful ocean behind her.
Phoebe is clearly in control of her future, but being able to command the weather is a different story.
Gates' youngest child gave into her windblown hair and ran with it.
As RadarOnline.com reported, Phoebe graduated high school earlier this month in a mermaid-style dress.
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The blue-eyed babe posted several shots to show off the sea-shelled top gown. And, of course, her family didn't miss it despite her parents' divorce battle being splashed all over the headlines.
Ironically, as Phoebe is beginning to spread her wings at college, Gates' oldest daughter Jennifer revealed that she is postponing medical school in the wake of their parents' split.
She's also planning a wedding, so juggling both would be tough.
Jennifer proved she's not giving up on the idea of love and had her sister by her side for the wild bachelorette weekend in Santa Barbra last week.
Melinda Gates filed for divorce from the multi-billionaire in May.
They were married for 27 years before pulling the plug. Besides Phoebe and Jennifer, Bill and Melinda also have a son, Rory, 21.
Their middle child stays out of the spotlight and social media, unlike their daughters.
After Melinda filed, The New York Times posted a bombshell report claiming the mogul “pursued women who worked for him at Microsoft and the Bill and Melinda Gates Foundation.”
They also called out Bill's “questionable conduct in work-related settings.”
Following the report, Bill admitted he had an affair over 20 years ago with an ex-employee at Microsoft.
When it comes to their three children, Melinda is gearing up to fight Bill on his decision to leave each of the kids only $10 million from his estate, which is worth $130 billion.