Zachary Quinto Shares Photo of Boyfriend Miles McMillan, His "New Year's Treasure," in a Speedo—See the Pic!

The two were first linked romantically in mid-2013

Zachary Quinto sure is smitten with his hot model boyfriend!

On New Year's Eve, the 37-year-old former Heroes and American Horror Story actor, upcoming Girls guest star and the new Star Trek movies' Spock posted on his Instagram page a photo of beau Miles McMillan showing off his fit, chiseled torso while wearing a Speedo-style swimsuit and a leather jacket while standing in (or just on the edge of) the ocean and giving a salute.

"My very own new year's treasure. @milesmcmillan," Quinto wrote.

The two appear to have taken a tropical vacation over the Christmas and New Year's holidays but have not revealed it. Both Quinto and McMillan posted several other beach-themed photos on their Instagram pages.

A photo posted by Zachary Quinto (@zacharyquinto) on Dec 12, 2014 at 6:53pm PST

Slashing about with @zacharyquinto

A photo posted by Miles McMillan (@milesmcmillan) on Dec 12, 2014 at 10:41pm PST

The last of 2014's light!

A photo posted by Miles McMillan (@milesmcmillan) on Dec 12, 2014 at 10:50pm PST

last of the light at the end of the line. still two hours to go... happy new year to the rest of the world!

A photo posted by Zachary Quinto (@zacharyquinto) on Dec 12, 2014 at 11:57pm PST

McMillan has in the past referred to Quinto as his "baby."

He and the actor, who came out as a gay man publicly in 2011, were first linked romantically in 2013. At the end of that year, they were spotted out and about together in New York City, walking their dogs. In October 2014, they were seen packing on the PDA during a shopping trip.