West Hollywood, Calif (AP) “Star Trek” star George Takei is ready to “live long and prosper” with his partner of 21 years.

Takei will marry 54-year-old Brad Altman on September 14th in Los Angeles.

The 71-year-old actor, known for his role as Sulu on the “Star Trek” sci-fi TV series, was the first to pay $70 for a marriage license in West Hollywood early Tuesday. The marriage license is good for 90 days.

Takei was jubilant, saying “it's going to be the only day like this in our lives and it is the only day like this in the history of America.”

He told reporters and a swelling crowd outside the West Hollywood city auditorium “may equality live long and prosper.”

The California Supreme Court has legalized same-sex marriage.