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The Williams sisters have each other’s backs on the court — and down the aisle.
In a new Instagram post shared on Tuesday, Dec. 23, Serena Williams gushed about her older sister Venus Williams following Venus’ wedding to actor Andrea Preti. “My sister’s keeper,” Serena, 44, began the lengthy caption. “Venus, where do I even begin?”
Serena went on to describe the way she’s seen Venus lead with “grace, strength, and a heart bigger than any trophy” as the two professional tennis players grew from “backyard courts” to “the biggest stages in the world.”
“Watching you step into this next chapter surrounded by love felt like watching the sun rise…steady, powerful, and full of promise,” she continued.
“You’ve been my built-in best friend, my protector, my teacher, and my reminder to always walk in purpose. Seeing you this happy, this loved, this radiant… it means everything to me. To love, to partnership, to laughter, and to a lifetime of choosing each other every single day. I couldn’t be prouder to stand beside you, not just today, but always,” the caption concluded.
Serena wore a white strapless mermaid gown with a sweetheart neckline, flowing cape and detached lace sleeves. Pearl jewelry and pointed-toe heels accessorized the design, as did her old-Hollywood-inspired blonde waves and red manicure.
While usually taboo for anyone but the bride to wear white, the choice seemed intentionally made by Venus, 45, who also had their two other sisters, Lyndrea Price and Isha Price, niece Justus, and mom Oracene dressed in white.
In the months leading up to the wedding, Serena told PEOPLE during the launch of her and Venus’ new podcast, Stockton Street, in September 2025, that she was busy with “so much planning” ahead of her older sister’s wedding. She noted that Venus leaned on her for help as she’s known as someone who can “get things done.”
Serena also recalled one of their recent planning calls, saying her sister wanted her input on “literally 14 hairstyles.” She explained, “So she sent me her options and within 30 minutes I had them not only done, but in a PDF file what hairstyle looked best on everyone.”
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“I’m the person that arranges things, I’m like the planner. I plan everything like the event. I’m the person that gets things done,” she added of her role.
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Venus and Preti were first linked in July 2024 when they were seen boating in Nerano, Italy, along the Amalfi Coast. After months of rumors, she finally confirmed the relationship during a post-match interview in July 2025 when she referred to Preti as her “fiancé.”
In 2025, Venus and Preti actually got married twice. The first ceremony came in September, when they tied the knot in Italy. They were wed again on Dec. 19 in a courthouse ceremony in West Palm Beach, Fla., following a full week of festivities before the big day.
Prior to the courthouse ceremony, Venus, Preti, and their guests enjoyed a yacht day, romantic dinner, and a bridal shower.
“For me, the courthouse ceremony was very unique, emotional, and deep,” Preti told Vogue, adding that “it was the second-best day” of his life, after the wedding itself.
