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Geary and Thicke started dating in the months after the singer separated from his wife of 10 years, Paula Patton. Two months after their divorce was finalized in March 2015, Thicke and Geary made their public debut as a couple at the Cannes Film Festival.
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Later that year, the couple — who are 18 years apart in age — jetted off to St. Barts on vacation together. Geary shared a photo of the island trip with the caption: “Lucky to be in love with my best friend.”
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She's got the family stamp of approval! Back in the U.S., Geary and Thicke attended the Grammy Awards with his mother, Gloria Loring.
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On vacation again, Thicke shared this PDA-packed snap of the couple in each other's arms on the beach.
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Posing with Thicke and his son Julian, Geary captioned this photo: "SO very thankful that I get to spend my days with this amazing (& handsome) man and this beautiful little boy, thankful for all my friends and family."
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In December, the couple celebrated Geary's 22nd birthday at her "favorite restaurant ever," Giorgio Baldi Ristorante in Santa Monica, Calif.
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After celebrating their two-year anniversary with matching tattoos — Geary's read "RT" for Thicke's initials, while Thicke's said "ALT," which seemed to represent "April Love Thicke" — rumors swirled that the couple had secretly tied the knot. However, a source told PEOPLE that the two were still just dating.
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The 18-year age gap between the couple has been the subject of much chatter, something that Geary herself shut down in an Instagram post. "We're out here LIVING while most of y'all are still bothered by an age gap," she wrote.
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The jet-setting pair landed in Paris, where they couldn't resist a quick photo opp in front of the Eiffel Tower.
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Baby on board! Geary and Thicke announced they are expecting their first child on Aug. 17, on Instagram. "Robin and I are very excited to share with you all that we're having a baby!" Geary captioned a sonogram photo. "The due date is March 1st, Alan's birthday!" Geary also shared a photo of her baby bump in a bikini, too, with the caption: "Happy in Hawaii with my lil peanut." The child will be Geary's first and Thicke's second.
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