Sarah Paulson Sends Girlfriend Holland Taylor Adorable Birthday Wishes

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Adorable couple alert!

Sarah Paulson took to Twitter on Thursday to wish her girlfriend, Two and a Half Men star Holland Taylor, a very happy 73rd birthday.

“Happiest Birthday to @HollandTaylor my most favorite human,” Paulson wrote. “No one is more deeply grateful that you were born than I.”

WATCH: 'Two and a Half Men' Star Holland Taylor Is Dating 'American Horror Story' Actress Sarah Paulson

The pair went public with their relationship in December, and have been sharing adorable social media messages ever since.

On Dec. 6, Paulson went to see Taylor in a performance of Ripcord at the Manhattan Theatre Club, and the 41-year-old American Horror Story star couldn't contain her excitement over her girlfriend's dynamic stage presence.

"@HollandTaylor You sure are a genius. #favoriteactress," Paulson tweeted, along with a photo of her ticket for the show.

NEWS: Sarah Paulson and Girlfriend Holland Taylor Share Another Adorable Twitter Exchange

In November, Taylor shared a photo of Paulson in a gorgeous, shimmering gown, along with the sweet sentiment, "When captions fail."

The May-December romance was surprising to some, though Taylor recently opened up about her sexuality for the to public radio station WNYC. While she didn’t name Paulson at the time, she did reveal the significant age gap. ET broke the news in December that Paulson and Taylor were dating.

"There's a very big age difference between us which I’m sure shocks a lot of people, and it startles me," Taylor said at the time, before joking, "but as they say, 'If she dies, she dies.'"

WATCH: Sarah Paulson Calls Girlfriend Holland Taylor Her 'Favorite Actress' in Sweet Tweet