On Sunday night he posted a photo of himself and Mr Tauafiafi, saying: "Thank you Taupou Tatau for the fresh ink. Much love, brother."
Adams' tattoo is wrapped around an existing one of his middle name - Funaki - and incorporates ta moko and intricate triangular patterns unique to Pasifika. It pays tribute to his connection to New Zealand and his Tongan roots, on his mother's side.
Mr Tauafiafi said Adams approached him with an idea of what he wanted and they worked together to come up with the end result.
"I don't want to go into too much about his tattoo because tattoos are a personal thing. All I can say about what we created for Steven was ... the tattoo that he did get was half Maori and half Tongan.
"What we did represented family, strength and protection. With any Polynesian or Maori culture, those are the main things. I guess it's to keep him grounded and have the support with him - not in body, but in spirit."
Adams joins a long list of other Polynesian stars who sport a contemporary tatau sleeve; including All Black Ma'a Nonu, Sonny Bill Williams and Hollywood star Dwayne "The Rock" Johnson.
Mr Tauafiafi said it was nice to see a local young person do so well in the world and still remain grounded.
"I've met him a couple of times before and from that first time I met him to after one year of being in the NBA, he's still that humble kid from New Zealand."
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