Fics like Every Nickname is a Title

In a world where your soul mark is the nickname your soulmate will eventually call you, Rafael Barba has tried to stop anyone from calling him "Rafi". But when Dominick "Call me Sonny" Carisi, Jr. causes Barba's tattoo to sear against his skin, Barba is left trying to figure out what Carisi's tattoo can possibly be, if only to make sure he never accidentally uses it.

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