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Serena Williams and Alexis Olympia Ohanian Jr. are back on their twinning streak in another pair of spot-on outfits. Less than a week after the mother-daughter duo kissed Summer goodbye in matching swimsuits [2], they spent the day in spot-on tutu skirts and similar sneakers.

"We love twinning so much, I slipped into the star tutu skirt from @rocketsofawesome to match hers!" Serena captioned her Instagram photo. "What can I say I'm a kid at heart."

Olympia certainly has a fashionable icon to look up to as she starts making her own wardrobe decisions. Serena owns a clothing brand, and earlier this month the two walked the runway together [3] at New York Fashion Week. Looks like the stylish gene runs in the family!