If Serena Williams and boyfriend Drake thought they could take some alone time during the U.S. Open, they were sadly mistaken.

A "stalker fan" posted a video of the couple kissing as they enter a parking garage and get ready to leave a fancy hotel/restaurant, BET.com reported.

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"The intrepid (or, some would say, crazy) individual hung out in the valet section of the restaurant where Drake and Serena were dining, until they emerged," BET.com reported. "The camera caught just a glimpse of them kissing, and though the video is extremely grainy, there's no doubt about who we see. We swear we even hear the camera person whisper 'got 'em!' after the kiss."

It's the second "public" kiss the happy couple has been caught engaging in. Serena and Drake were photographed at another restaurant in August with what appears to be a steamier kiss.

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Williams is, perhaps, four days away from becoming the first player to complete the calendar Grand Slam since Steffi Graf accomplished the feat in 1988. She is in the quarterfinals of the U.S. Open, where she will take on sister Venus.

Serena is also trying to win her 22nd Grand Slam event during her career, which would tie her with Graf for the most in the modern era and the second most in tennis history. Margaret Court holds the all-time record with 24.

Her every move is being record, as the Instagram post suggests.

According to The Daily Beast, the couple dated in 2011, but Drake had been unfaithful. He, however, appeared to continue to follow her career, and wrote a verse on the song, "My Love" with Malid Jordan that appears as if he is writing about Williams.

The couple seems to be going strong now.

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