Robin Thicke and Girlfriend April Love Geary Are Not Married Despite Cryptic Instagram Posts

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Robin Thick and April Love Geary are not married.

Rumors swirled that the two had secretly wed following cryptic Instagram posts shared by Geary on Monday, however, a source close to the couple tells ET that the two have not tied the knot. 

WATCH: Robin Thicke's 21-Year-Old Girlfriend Shares Sexy Snap Of the Couple On Vacation

The 21-year-old model first sparked speculation with a cheeky photo that displayed the initials ALT -- presumably for April Love Thicke -- written on her bikini bottoms.
"His," she simply captioned the snap.

"Come with me, my loveeee, to the sea, the sea of love ?," Geary wrote alongside another pic of herself giving Thicke, 39, a big smooch.

WATCH: Robin Thicke & Girlfriend April Love Geary Enjoy Beach Vacation With His Son

Thicke and Geary may not be married, but it's safe to say they're in it for the long haul.

In September, the two got matching tattoos on their ring fingers of each other's initials -- although Geary's initials are written ALT (just like her bikini) -- on the singer's ring finger.

"2 years strong, love you ❤," Geary captioned a shot of their new ink.

WATCH: Paula Patton Shares Throwback Photo of Ex-Husband Robin Thicke: 'No Regrets!'

Thicke and Geary made their debut as a couple at the Cannes Film Festival in May 2015, following his separation from his high school sweetheart, Paula Patton, in February 2014.

ET caught up with Patton in March, where she revealed that although she was "very in love" with Thicke -- the two married in 2005, and share 6-year-old son Julian -- she too was moving on.

See more in the video below.

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