All the corresponding inks of the couple

Since Ariana Grande and Pete Davidson met in May, the couple's relationship has evolved quickly. After posting pictures of them in Harry Potter-Virtual outfits on Instagram, fans of both were convinced of their relationship.

After this post, the couple was almost without interruption, it seems. They supported each other publicly: Davidson went to Grande's concerts and presented her on stage while listening to her new album. She went to Syracuse, New York, to be with Davidson while shooting a movie.

In addition to moving into a New York apartment together and getting a pet pig, the two fiancees also engaged one to the other: matching tattoos.

Pete Davidson and Ariana Grande at the 2018 MTV Video Music Awards at Radio City Music Hall in New York on August 20th. Nicholas Hunt / Getty Images for MTV

Here are their five assorted tattoos and the meaning of each:

Thousand tenderness: This is the newest matching tattoo that the couple got, probably in September. Grande already had the tattoo; she had him on the base of his neck in 2014. He reads thousand tenderness, Meaning "thousand tendencies". Photos of Davidson appeared recently with the phrase visible on the back of his neck.

Performer Ariana Grande, winner of the favorite female pop / rock artist, poses in the press room at the 2015 American Music Awards at the Microsoft Theater on November 22, 2015 in Los Angeles, California. His tattoo "a thousand tenderness" is visible on his neck. Jason Merritt / Getty Images

8418: This one has to do with someone close and dear to Davidson. His father, who was a firefighter in New York City, died on September 11th. Davidson had his father's badge number, 8418, tattooed on his forearm and Grande had the numbers added to his ankle.

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Cloud: This was one of the first tattoo fans noticed. The new fragrance of Grande has the shape of a cloud and is also called "Cloud", which could be a source of inspiration for cloud tattoos to be matched on the fingers.

H2GKMO: This tattoo represents Grande's frequent phrase, "Honest to God, knock me out". Davidson and she got the tattoo with a friend. An Instagram post that has since been removed from Davidson's account has shown that he also has the tattoo.

Reborn: A fan on Twitter pointed out this tattoo, which was spotted in the story of Great on Instagram. Great is on his hand, and Davidson has his on his thumb.

Davidson has other tattoos that are dear to him. He has his initials on his finger and his last name along his ribcage, with the symbol of the dangerous woman behind his ear and a tattoo of their pet pig on his ribs. Great is Davidson's name, "Pete", on his ring finger in delicate writing.

Pete Davidson, Justin Bieber and Hailey Baldwin attend John Elliott's show during New York Fashion Week on September 6th. Davidson's tattoo "Grande" can be seen in cursive along her right rib cage. Theo / Wargo / Getty Images